This page provides current names for California seaweed species, including those whose names have changed since the publication of Marine Algae of California (Abbott & Hollenberg 1976). Both former names (1976) and current names are provided. This list is organized by group (green, brown, red algae); within each group are genera and species in alphabetical order. California seaweeds discovered or described since 1976 are indicated by an asterisk.
This is a draft of an on-going project. If you have questions or comments, please contact Kathy Ann Miller, University Herbarium, University of California at Berkeley. kathyannmiller@berkeley.edu
Blidingia minima (Nägeli ex Kützing) Kylin
Blidingia minima var. vexata (Setchell & N.L. Gardner) J.N. Norris
Former name: Blidingia minima var. subsalsa (Kjellman) R.F. Scagel
Current name: Blidingia subsalsa (Kjellman) R.F. Scagel et al.
Bolbocoleon piliferum Pringsheim
Bryopsis corticulans Setchell
Bryopsis hypnoides Lamouroux
Former name: Bryopsis pennatula J. Agardh
Current name: Bryopsis pennata var. minor J. Agardh
*Bryopsis spp.
*Capsosiphon fulvescens (C. Agardh) Setchell & N.L. Gardner
*Caulerpa prolifera (Forsskål) J.V.Lamouroux
*Caulerpa taxifolia (Vahl) C. Agardh
Chaetomorpha aerea (Dillwyn) Kützing
Chaetomorpha antennina (Bory) Kützing
Chaetomorpha californica Collins
Chaetomorpha linum (O.F. Müller) Kützing
Chaetomorpha spiralis Okamura
"Chlorochytrium inclusum" Kjellman
Former name: Chlorochytrium porphyrae Setchell & N.L. Gardner
Current name: Halochlorococcum porphyrae (Setchell & N.L. Gardner) J.A. West, C.M. Smith & McBride
Former name: Cladophora albida (Hudson) Kützing
Current name: Cladophora albida (Nees) Kützing
*Former name: Cladophora amphibia Collins
Current name: Wittrockiella amphibia (F.S. Collins) C. Boedeker & G.I. Hansen
Cladophora columbiana Collins
Cladophora elmorei E.Y. Dawson
Cladophora graminea Collins
Cladophora microcladioides Collins
Former name: Cladophora sakaii I.A. Abbott
Current name: Lychaete sakaii (I.A. Abbott) M.J. Wynne
Cladophora sericea (Hudson) Kützing
Cladophora stimpsonii Harvey
Former name: Cladophoropsis fasciculatus (Kjellman) Wille
Current name: Cladophoropsis fasciculata (Kjellman) Wille
Codiolum gregarium Braun
Codium cuneatum Setchell & N.L. Gardner
*Codium dawsonii P.C. Silva, F. Pedroche, M. Chacana & K.A. Miller
Former name: Codium fragile (Suringar) Hariot
Current name: Codium fragile subsp. californicum (J. Agardh) C.A. Maggs & J. Kelly
*Former name: Codium fragile subsp. tomentosoides (van Goor) P.C. Silva
Current name: Codium fragile subsp. fragile (Suringar) Hariot
Codium hubbsii E.Y. Dawson
Codium johnstonei P.C. Silva
Codium setchellii N.L. Gardner
Collinsiella tuberculata Setchell & N.L. Gardner
Derbesia marina (Lyngbye) Solier
Derbesia prolifica W.R. Taylor
Former name: Endophyton ramosum N.L. Gardner
Current name: Ulvella ramosa (N.L. Gardner) R. Nielsen, C.J. O'Kelly & B. Wysor
Former name: Enteromorpha clathrata (Roth) Greville
Current name: Ulva clathrata (Roth) C. Agardh
Former name: Enteromorpha clathrata var. crinita (Nees) Hauck
Current name: Ulva clathrata (Roth) C. Agardh
Former name: Enteromorpha compressa (Linnaeus) Greville
Current name: Ulva compressa Linnaeus
Former name: Enteromorpha flexuosa (Roth) J. Agardh
Current name: Ulva flexuosa Wulfen
Former name: Enteromorpha intestinalis (Linnaeus) Link
Current name: Ulva intestinalis Linnaeus
Former name: Enteromorpha linza (Linnaeus) J. Agardh
Current name: Ulva linza Linnaeus
Former name: Enteromorpha prolifera (O.F. Müller) J. Agardh
Current name: Ulva prolifera O.F. Müller
Former name: Entocladia cingens Setchell & N.L. Gardner
Current name: Ulvella cingens (Setchell & N.L. Gardner) R. Nielsen, C.J. O'Kelly & B. Wysor
Former name: Entocladia codicola Setchell & N.L. Gardner
Current name: Ulvella codicola (Setchell & N.L. Gardner) R. Nielsen, C.J. O'Kelly & B. Wysor
Former name: Entocladia viridis Reinke
Current name: Ulvella viridis (Reinke) R. Nielsen, C.J. O'Kelly & B. Wysor
Gomontia polyrhiza (Lagerheim) Bornet & Flahault
Former name: Halicystis ovalis (Lyngbye) J.E. Areschoug
Current name: Derbesia marina (Lyngbye) Solier
Former name: Kornmannia zostericola (Tilden) C.V. Bliding
Current name: Kornmannia leptoderma (Kjellman) C.V. Bliding
Former name: Lola lubrica (Setchell & N.L. Gardner) A. Hamel & G. Hamel
Current name: Rhizoclonium lubricum Setchell & Gardner
Monostroma grevillei (Thuret) Wittrock
Former name: Monostroma oxyspermum (Kützing) M.S. Doty
Former name: Gayralia oxysperma (Kützing) R.F. Scagel et al.
Current name: Monostroma oxyspermum (Kützing) M.S. Doty
Former name: Monostroma zostericola J.E. Tilden
Current name: Kornmannia leptoderma (Kjellman) C.V. Bliding
*Palmophyllum umbracola Nelson & Ryan
Former name: Percursaria dawsonii G.J. Hollenberg & I.A. Abbott
Current name: Blidingia dawsonii (G.J. Hollenberg & I.A. Abbott) S.C. Lindstrom, L.A. Hanic & L. Golden
Percursaria percursa (C. Agardh) Rosenvinge
Pilinella californica G.J. Hollenberg
Former name: Prasinocladus ascus Proskauer
Current name: Tetraselmis ascus (Proskauer) R.E. Norris, Hori & Chihara
Former name: Prasinocladus marinus (Cienkowski) Waern
Current name: Tetraselmis marina (Cienkowski) R.E. Norris, Hori & Chihara
Prasiola meridionalis Setchell & N.L. Gardner
Former name: Pseudodictyon geniculatum N.L. Gardner
Current name: Ulvella geniculata (N.L. Gardner) C.J. O'Kelly & B. Wysor
Former name: Pseudopringsheimia apiculata Setchell & N.L. Gardner
Current name: Acrochaete apiculata (Setchell & N.L. Gardner) C.J. O'Kelly
Former name: Pseudulvella applanata Setchell & N.L. Gardner
Current name: Ulvella lens P.L. Crouan & H.M. Crouan
Pseudulvella consociata Setchell & N.L. Gardner
Pseudulvella prostrata Setchell & N.L. Gardner
Former name: Rhizoclonium implexum (Dillwyn) Kützing
Current name: Rhizoclonium riparium var. implexum (Dillwyn) Rosenvinge
Rhizoclonium riparium (Roth) Harvey
*Rhizoclonium tortuosum (Dillwyn) Kützing
*Rosenvingiellopsis constricta (Setchell & Gardner) S. Heesch, M. Pažoutová & F. Rindi
*Rosenvingiella radicans (Kützing) F. Rindi, L. McIvor & M. Guiry
Former name: Spongomorpha coalita (Ruprecht) Collins
Current name: Acrosiphonia coalita (Ruprecht) R.F. Scagel, D.J. Garbary, L. Golden & M.J. Hawkes
Spongomorpha mertensii (Ruprecht) Setchell & N.L. Gardner
Former name: Spongomorpha saxatilis (Ruprecht) F.S. Collins
Current name: Acrosiphonia saxatilis (Ruprecht) Vinogradova
Ulothrix flacca (Dillwyn) Thuret
Ulothrix implexa (Kützing) Kützing
Former name: Ulothrix laetevirens (Hooker) F.S. Collins
Current name: Ulothrix flacca (Dillwyn) Thuret
Former name: Ulothrix pseudoflacca Wille
Current name: Ulothrix flacca (Dillwyn) Thuret
Former name: Ulva angusta Setchell & N.L. Gardner
Current name: Ulva californica Wille
*Ulva australis Areschoug
Ulva californica Wille
*Ulva clathratioides L. Kraft, G.T. Kraft & R. Waller
Former name: Ulva costata (M.A. Howe) G.J. Hollenberg sensu Abbott & Hollenberg 1976
Current name: Ulva taeniata (Setchell) Setchell & N.L. Gardner
Former name: Ulva dactylifera Setchell & N.L. Gardner
Current name: Ulva taeniata (Setchell) Setchell & N.L. Gardner
Ulva expansa (Setchell) Setchell & N.L. Gardner
Former name: Ulva lactuca Linnaeus sensu Abbott & Hollenberg 1976 (not in California)
Current name: Ulva fenestrata Postels & Ruprecht
Ulva lobata (Kützing) Setchell & N.L. Gardner sensu Abbott & Hollenberg 1976 (not in California)
Current name: Ulva lactuca L. (not in California)
*Former name: Ulva pertusa Kjellman
Current name: Ulva australis Areschoug
*Ulva pseudocurvata Koeman & van den Hoek
Ulva stenophylla Setchell & N.L. Gardner
Ulva rigida C. Agardh (not in California)
*Ulva tanneri H. Hayden & J.R. Waaland
*Ulvaria fusca (Postels & Ruprecht) Vinogradova
Ulvella setchellii Dangeard
Urospora doliifera (Setchell & N.L. Gardner) M.S. Doty
Urospora penicilliformis (Roth) J.E. Areschoug
Urospora wormskioldii (J.W. Hornemann) Rosenvinge
Acinetospora nicholsoniae G.J. Hollenberg
Former name: Agarum fimbriatum Harvey
Current name: Neoagarum fimbriatum (Harvey) H. Kawai & T. Hanyuda
Alaria marginata Postels & Ruprecht
Analipus japonicus (Harvey) M.J. Wynne
*Battersia plumigera (Holmes ex Hauck) S.G.A. Draisma, W.F. Prud'homme van Reine & H. Kawai
Coilodesme californica (Ruprecht) Kjellman
Coilodesme corrugata Setchell & N.L. Gardner
Coilodesme plana G.J. Hollenberg & I.A. Abbott
Coilodesme rigida Setchell & N.L. Gardner
Former name: Colpomenia bullosa (DeA. Saunders) Yamada
Current name: Dactylosiphon bullosus (D.A. Saunders) Santiañez, K.M. Lee, S.M. Boo & Kogame
*Colpomenia claytoniae S.M. Boo, K.M. Lee, G.Y. Cho & W. Nelson
*Colpomenia expansa (DeA. Saunders) Y.P. Lee
Colpomenia peregrina (Sauvageau) G. Hamel
Colpomenia sinuosa (Mertens ex Roth) Derbès & Solier
Former name: Colpomenia tuberculata DeA. Saunders
Current name: Encephalophycus tuberculatus (D.A.Saunders) Santiañez
Former name: Compsonema fructosum Setchell & N.L. Gardner
Current name: Compsonema fructuosum Setchell & N.L. Gardner
Compsonema intricatum Setchell & N.L. Gardner
Compsonema serpens Setchell & N.L. Gardner
*Compsonema sporangiiferum Setchell & N.L. Gardner
Costaria costata (C. Agardh) DeA. Saunders
*Former name: Cutleria cylindrica Okamura
Current name: Mutimo cylindricus (Okamura) H. Kawai & T. Kitayama
Former name: Cylindrocarpus rugosus Okamura
Current name: Petrospongium rugosum (Okamura) Setchell & N.L. Gardner
Former name: Cystoseira neglecta Setchell & N.L. Gardner
Current name: Stephanocystis neglecta (Setchell & N.L. Gardner) S.G.A. Draisma, E. Ballesteros, F. Rousseau, & T. Thibaut
Former name: Cystoseira osmundacea (Turner) C. Agardh
Current name: Stephanocystis osmundacea (Turner) Trevisan
Former name: Cystoseira setchellii N.L. Gardner
Current name: Stephanocystis setchellii (N.L. Gardner) S.G.A. Draisma, E. Ballesteros, F. Rousseau, & T. Thibaut
Desmarestia kurilensis Yamada
Former name: Desmarestia latifrons Kützing
Current name: Desmarestia latifrons (Ruprecht) Kützing
Former name: Desmarestia ligulata (Lightfoot) Lamouroux sensu Abbott & Hollenberg 1976
Current name: Desmarestia herbacea (Turner) Lamouroux
Former name: Desmarestia ligulata var. firma (C. Agardh) J. Agardh sensu Abbott & Hollenberg 1976
Current name: Desmarestia dudresnayi subsp. tabacoides (Okamura) A.F. Peters, E.C. Yang, F.C. Küpper & W.H. Prud'homme van Reine
Former name: Desmarestia munda Setchell & N.L. Gardner
Current name: Desmarestia herbacea (Turner) Lamouroux
Yang et al. 2014
Desmarestia viridis (O.F. Müller) Lamouroux
Former name: Dictyoneuropsis reticulata (DeA. Saunders) G.M. Smith
Current name: Dictyoneurum reticulatum (DeA. Saunders) P.C. Silva
Dictyoneurum californicum Ruprecht
Dictyopteris undulata Holmes
Former name: Dictyopteris johnstonei N.L. Gardner
Current name: Dictyopteris undulata Holmes
Dictyota binghamiae J. Agardh
*Dictyota cyanoloma A. Tronholm, O. De Clerck, A. Gomez-Garreta, & J. Rull Lluch
Dictyota flabellata (F.S. Collins) Setchell & N.L. Gardner
Diplura simulans G.J. Hollenberg
Ectocarpus acutus Setchell & N.L. Gardner
Former name: Ectocarpus acutus var. haplogloiae M.S. Doty
Current name: Ectocarpus fasciculatus Harvey
Ectocarpus chantransioides Setchell & N.L. Gardner
Ectocarpus corticulatus DeA. Saunders
Former name: Ectocarpus fructosus Setchell & N.L. Gardner
Current name: Ectocarpus fructuosus Setchell & N.L. Gardner
Ectocarpus gonodioides Setchell & N.L. Gardner
Ectocarpus isopodicola E.Y. Dawson
Former name: Ectocarpus parvus (DeA. Saunders) G.J. Hollenberg
Current name: Ectocarpus commensalis Setchell & N.L. Gardner
Ectocarpus siliculosus (Dillwyn) Lyngbye
Ectocarpus simulans Setchell & N.L. Gardner
Ectocarpus taoniae Setchell & N.L. Gardner
Former name: Egregia laevigata Setchell
Current name: Egregia menziesii (Turner) J.E. Areschoug
Former name: Egregia laevigata subsp. borealis (Setchell) P.C. Silva
Current name: Egregia menziesii (Turner) J.E. Areschoug
Egregia menziesii (Turner) J.E. Areschoug
Former name: Egregia menziesii subsp. insularis P.C. Silva
Current name: Egregia menziesii (Turner) J.E. Areschoug
Former name: Eisenia arborea J.E. Areschoug
Former name: Ecklonia arborea (J.E. Areschoug) M.D. Rothman, Mattio & J.J. Bolton
Current name: Eisenia arborea J.E. Areschoug
Elachista fucicola (Velley) J.E. Areschoug
*Elachista nigra Takamatsu
Former name: Endarachne binghamiae J. Agardh
Current name: Petalonia binghamiae (J. Agardh) Vinogradova
Endoplura aurea G.J. Hollenberg
Feldmannia acuminata (DeA. Saunders) G.J. Hollenberg & I.A. Abbott
Feldmannia chitonicola (DeA. Saunders) Levring
Former name: Feldmannia cylindrica (DeA. Saunders) G.J. Hollenberg & I.A. Abbott
Current name: Feldmannia simplex (P. Crouan & H. Crouan) Hamel
Feldmannia globifera (Kützing) G. Hamel
Feldmannia hemispherica (DeA. Saunders) G.J. Hollenberg
Feldmannia irregularis (Kützing ) G. Hamel
Feldmannia rhizoidea G.J. Hollenberg & I.A. Abbott
Former name: Fucus gardneri P.C. Silva
Current name: Fucus distichus Linnaeus
*Fucus spiralis Linnaeus
Former name: Giffordia granulosa (J.E. Smith) G. Hamel
Current name: Hincksia granulosa (J.E. Smith) P.C. Silva
Former name: Giffordia hincksiae var. californica G.J. Hollenberg & I.A. Abbott
Current name: Hincksia hincksiae var. californica (G.J. Hollenberg & I.A. Abbott) P.C. Silva
Former name: Giffordia mitchelliae (Harvey) G. Hamel
Current name: Feldmannia mitchelliae (Harvey) H.-S. Kim
Former name: Giffordia sandriana (Zanardini) G. Hamel
Current name: Hincksia sandriana (Zanardini) P.C. Silva
Former name: Giffordia saundersii (Setchell & N.L. Gardner) G.J. Hollenberg & I.A. Abbott
Current name: Hincksia saundersii (Setchell & N.L. Gardner) P.C. Silva
Former name: Halidrys dioica N.L. Gardner
Current name: Stephanocystis dioica (Gardner) S.G.A. Draisma, E. Ballesteros, F. Rousseau, & T. Thibaut
Halorhipis winstonii (C.L. Anderson) DeA. Saunders
Haplogloia andersonii (Farlow) Levring
Hapalospongidion gelatinosum DeA. Saunders
Former name: Hapterophycus canaliculatus Setchell & N.L. Gardner
Former name: Scytosiphon canaliculatus (Setchell & N.L. Gardner) Kogame
Current name: Hapterophycus canaliculatus Setchell & N.L. Gardner
Hecatonema primarium (Setchell & N.L. Gardner) S. Loiseaux
Hecatonema streblonematoides (Setchell & N.L. Gardner) S. Loiseaux
Former name: Hedophyllum sessile (C. Agardh) Setchell
Former name: Saccharina sessilis (C. Agardh) Kuntze
Current name: Hedophyllum sessile (C. Agardh) Setchell
Former name: Hesperophycus harveyanus (Decaisne) Setchell & N.L. Gardner
Former name: Hesperophycus californicus P.C. Silva
Current name: Pelvetiopsis californica (P.C. Silva) Neiva, Raimondi, Pearson & Serrão
Hydroclathrus clathratus (C. Agardh) M.A. Howe
Kuckuckia catalinae G.J. Hollenberg
*Laminaria cordata E.Y. Dawson
Former name: Laminaria dentigera Kjellman sensu Abbott & Hollenberg 1976
Current name: Laminaria setchellii P.C. Silva
Laminaria ephemera Setchell
Laminaria farlowii Setchell
Laminaria setchellii P.C. Silva
Former name: Laminaria sinclairii (Harvey) Farlow, C.L. Anderson & Eaton
Current name: Laminaria sinclairii (Harvey ex J.D. Hooker & Harvey) Farlow, C.L. Anderson, & Eaton
Former name: Leathesia difformis (Linnaeus) J.E. Areschoug
Current name: Leathesia marina (Lyngbye) Decaisne
Former name: Leathesia nana Setchell & N.L. Gardner
Current name: Leathesia marina (Lyngbye) Decaisne
Lessoniopsis littoralis (Farlow & Setchell ex J.E. Tilden) Reinke
Former name: Macrocystis integrifolia Bory
Current name: Macrocystis pyrifera (Linnaeus) C. Agardh
Macrocystis pyrifera (Linnaeus) C. Agardh
Melanosiphon intestinalis (DeA. Saunders) M.J. Wynne
Melanosiphon intestinalis f. tenuis (Setchell & N.L. Gardner) M.J. Wynne
Myrionema balticum (Reinke) Foslie
Myrionema corunnae Sauvageau
Myrionema magnusii (Sauvageau) S. Loiseaux
Myrionema strangulans Greville
Former name: Nereocystis luetkeana (Mertens) Postels & Ruprecht
Current name: Nereocystis luetkeana (Mertens f.) Postels & Ruprecht
Former name: Pachydictyon coriaceum (Holmes) Okamura
Current name: Dictyota coriacea (Holmes) I.K. Hwang, H.S. Kim, & W.J. Lee
Pelagophycus porra (Leman) Setchell
Former name: Pelvetia fastigiata (J. Agardh) De Toni
Current name: Silvetia compressa (J. Agardh) E.A. Serrão, T.O. Cho, S.M. Boo, & S.H. Brawley
Former name: Pelvetia fastigiata f. gracilis Setchell & N.L. Gardner
Current name: Silvetia compressa subsp. deliquescens P.C. Silva
Pelvetiopsis arborescens N.L. Gardner
*Pelvetiopsis hybrida Neiva, Raimondi, Pearson & Serrão
Pelvetiopsis limitata (Setchell) N.L. Gardner
Petalonia fascia (O.F. Müller) Kuntze
Petroderma maculiforme (Wollny) Kuckuck
Phaeostrophion irregulare Setchell & N.L. Gardner
Former name: Pilayella Bory
Current name: Pylaiella Bory
Former name: Pilayella gardneri Collins
Current name: Pylaiella gardneri Collins
Former name: Pilayella littoralis (Linnaeus) Kjellman
Current name: Pylaiella littoralis (Linnaeus) Kjellman
Former name: Pilayella tenella Setchell & N.L. Gardner
Current name: Pylaiella tenella Setchell & N.L. Gardner
Former name: Pleurophycus gardneri Setchell & Saunders
Current name: Pleurophycus gardneri Setchell & Saunders ex Tilden
Punctaria hesperia Setchell & N.L. Gardner
Punctaria occidentalis Setchell & N.L. Gardner
Postelsia palmaeformis Ruprecht
Former name: Pseudolithoderma nigra G.J. Hollenberg
Current name: Pseudolithoderma nigrum G.J. Hollenberg
Pterygophora californica Ruprecht
Punctaria hesperia Setchell & N.L. Gardner
Punctaria occidentalis Setchell & N.L. Gardner
Ralfsia confusa G.J. Hollenberg
Ralfsia fungiformis (Gunnerus) Setchell & N.L. Gardner
Ralfsia hesperia Setchell & N.L. Gardner
Ralfsia integra G.J. Hollenberg
Ralfsia pacifica G.J. Hollenberg
Former name: Rosenvingea floridana (W.R. Taylor) W.R. Taylor
Current name: Rosenvingea antillarum (P.L. Crouan & H.M. Crouan) M.J. Wynne
*Saccharina latissima (Linnaeus) C.E. Lane, C. Mayes, L.D. Druehl, & G.W. Saunders
Sargassum agardhianum Farlow
*Former name: Sargassum filicinum Harvey
Current name: Sargassum horneri (Turner) C. Agardh
Sargassum muticum (Yendo) Fensholt
Sargassum palmeri Grunow
Scytosiphon dotyi M.J. Wynne
Former name: Scytosiphon lomentaria (Lyngbye) J. Agardh
Current name: Scytosiphon lomentaria (Lyngbye) Link
Former name: Sorocarpus pacifica G.J. Hollenberg
Current name: Botrytella pacifica (G.J. Hollenberg) G.I. Hansen
Soranthera ulvoidea Postels & Ruprecht
Sphacelaria californica (Sauvageau) Setchell & N.L. Gardner
Sphacelaria didichotoma DeA. Saunders
Former name: Sphacelaria furcigera Kützing
Current name: Sphacelaria rigidula Kützing
Former name: Sphacelaria racemosa Greville
Current name: Battersia racemosa (Greville) S.G.A. Draisma, W.F. Prud'homme van Reine & H. Kawai
Spongonema tomentosum (Hudson) Kützing
Sporochnus pedunculatus (Hudson) C. Agardh
Former name: Stictyosiphon tortilis (Ruprecht) Reinke
Current name: Stictyosiphon tortilis (Gobi) Reinke
Former name: Streblonema aecidioides De Toni
Current name: Laminariocolax aecidioides (Rosenvinge) A.F. Peters
*Streblonema anomalum Setchell & N.L. Gardner
Streblonema corymbiferum Setchell & N.L. Gardner
Streblonema evagatum Setchell & N.L. Gardner
Former name: Streblonema investiens (F.S. Collins) Setchell & N.L. Gardner
Current name: Cylindrocarpus microscopicus P. Crouan & H. Crouan
Streblonema myrionematoides Setchell & N.L. Gardner
Streblonema pacificum DeA. Saunders
Streblonema penetrale Setchell & N.L. Gardner
Streblonema porphyrae Setchell & N.L. Gardner
Streblonema scabiosum Setchell & N.L. Gardner
Streblonema transfixum Setchell & N.L. Gardner
Former name: Syringoderma abyssicola (Setchell & N.L. Gardner) Levring
Current name: Microzonia abyssicola (Setchell & N.L. Gardner) Camacho & Fredericq
*Former name: Syringoderma phinneyi Henry & D.G. Müller
Current name: Microzonia phinneyi (E.C. Henry & D.G. Müller) Camacho & Fredericq
Former name: Taonia lennebackeriae J. Agardh
Current name: Taonia lennebackerae J. Agardh
Tinocladia crassa (Suringar) Kylin
*Undaria pinnatifida (Harvey) Suringar
Zonaria farlowii Setchell & N.L. Gardner
Former name: Acrochaetium amphiroae (K.M. Drew) G.F. Papenfuss
Current name: Colaconema amphiroae (K.M. Drew) P.W. Gabrielson
Acrochaetium angustum (K.M. Drew) G.F. Papenfuss
Acrochaetium arcuatum (K.M. Drew) Tseng
Former name: Acrochaetium barbadense (Vickers) Børgesen sensu Abbott & Hollenberg 1976
Current name: Colaconema macounii (F.S. Collins) P.W. Gabrielson
*Acrochaetium catenulatum M.A. Howe
Former name: Acrochaetium coccineum (K.M. Drew) G.F. Papenfuss
Current name: Colaconema coccineum (K.M. Drew) P.W. Gabrielson
Former name: Acrochaetium daviesii (Dillwyn) Nägeli
Current name: Colaconema daviesii (Dillwyn) Stegenga
Former name: Acrochaetium desmarestiae Kylin
Current name: Colaconema desmarestiae (Kylin) P.W. Gabrielson
Acrochaetium microscopicum (Kützing) Nägeli
Former name: Acrochaetium pacificum Kylin
Current name: Colaconema pacificum (Kylin) Woelkerling
Former name: Acrochaetium pectinatum (Kylin) G. Hamel
Current name: Colaconema pectinatum (Kylin) J.T. Harper & G.W. Saunders
Acrochaetium plumosum (K.M. Drew) G.M. Smith
Former name: Acrochaetium porphyrae (K.M. Drew) G.M. Smith
Current name: Rhododrewia porphyrae (K.M. Drew) S.L. Clayden & G.W. Saunders
Former name: Acrochaetium rhizoideum (K.M. Drew) C.C. Jao
Current name: Colaconema rhizoideum (K.M. Drew) P.W. Gabrielson
Former name: Acrochaetium subimmersum (Setchell & N.L. Gardner) G.F. Papenfuss
Current name: Rhodonematella subimmersa (Setchell & N.L. Gardner) S.L. Clayden & G.W. Saunders
Acrochaetium tenuissimum (F.S. Collins) G.F. Papenfuss
Former name: Acrochaetium thuretii (Bornet) Collins & Hervey
Current name: Colaconema thuretii (Bornet) P.W. Gabrielson
Former name: Acrochaetium vagum (K.M. Drew) C.-C. Jao
Current name: Acrochaetium arcuatum (K.M.Drew) C.K. Tseng
Former name: Acrosorium uncinatum (Turner) Kylin
Former name: Acrosorium ciliolatum (Harvey) Kylin
Current name: Acrosorium sp.
*Agardhiella subulata (C. Agardh) Kraft & Wynne
Aglaothamnion cordatum (Børgesen) Feldmann-Mazoyer
Aglaothamnion endovagum (Setchell & N.L. Gardner) I.A. Abbott
*Aglaothamnion tenuissimum (Bonnemaison) Feldmann-Mazoyer
Former name: Ahnfeltia gigartinoides J. Agardh
Current name: Fredericqia decewii C.A. Maggs, L. Le Gall, F. Mineur, J. Provan & G.W. Saunders
Former name: Ahnfeltia plicata (Hudson) Fries sensu Abbott & Hollenberg 1976
Current name: Ahnfeltia fastigiata (Endlicher) Makienko
Former name: Amphiroa zonata Yendo
Current name: Amphiroa beauvoisii Lamouroux
Amplisiphonia pacifica G.J. Hollenberg
Anisocladella pacifica Kylin
Antithamnion defectum Kylin
Antithamnion dendroideum G.M. Smith & G.J. Hollenberg
Antithamnion hubbsii E.Y. Dawson
Antithamnion kylinii N.L. Gardner
Antithamnionella breviramosa (E.Y. Dawson) Womersley & J.W. Bailey
Former name: Antithamnionella glandulifera (Kylin) E.M. Wollaston
Current name: Antithamnionella spirographidis (Schiffner) E.M. Wollaston
Antithamnionella pacifica (Harvey) E.M. Wollaston
Former name: Antithamnionella pacifica var. uncinata (N.L. Gardner) E.M. Wollaston
Current name: Antithamnionella pacifica (Harvey) E.M. Wollaston
*Former name: Apoglossum gregarium (E.Y. Dawson) M.J. Wynne
Current name: Phrix spatulata (E.Y. Dawson) M.J. Wynne, M. Kamiya & J.A. West
Former name: Arthrocardia silvae H.W. Johansen
Current name: Chiharaea silvae (H.W. Johansen) P.T. Martone, S.C. Lindstrom, K.A. Miller & P.W. Gabrielson
*Asparagopsis armata Harvey
Asparagopsis taxiformis (Delile) Trevisan
Former name: Asterocolax gardneri (Setchell) J. Feldmann & G. Feldmann
Current name: Phycodrys gardneri (Setchell) J.M. Freese & C.E. Lane
Former name: Asterocytis ramosa (Thwaites) F. Schmitz
Current name: Chroodactylon ornatum (C. Agardh) Basson
Former name: Bangia fuscopurpurea (Dillwyn) Lyngbye
Current name: "Bangia"
*"Bangia" maxima Gardner
*"Bangia" vermicularis Harvey
Besa papillaeformis Setchell
Besa stipitata G.J. Hollenberg & I.A. Abbott
Binghamia californica J. Agardh
Binghamia forkii (E.Y. Dawson) P.C. Silva
*Binghamiopsis caespitosa I.K. Lee, J.A. West, & M.H. Hommersand
Blinksia californica G.J. Hollenberg & I.A. Abbott
Bonnemaisonia geniculata N.L. Gardner
Bonnemaisonia hamifera Hariot
Former name: Bonnemaisonia nootkana (Esper) P.C. Silva sensu Abbott & Hollenberg 1976
Current name: Bonnemaisonia californica Buffham
Bornetia californica I.A. Abbott
Bossiella californica (Decaisne) P.C. Silva
Former name: Bossiella californica subsp. schmittii (Manza) H.W. Johansen
Current name: Bossiella schmittii (Manza) H.W. Johansen
Bossiella chiloensis (Decaisne) H.W. Johansen
*Bossiella exarticulata K.R. Hind, P.T. Martone, C. Jensen, & P.W. Gabrielson
*Bossiella frondifera Manza
*Bossiella heteroforma K.R. Hind, P.W. Gabrielson & G.W. Saunders
*Bossiella mayae P.W. Gabrielson, K.R. Hind, Martone, & C.P. Jensen
Bossiella orbigniana (Decaisne) P.C. Silva
Former name: Bossiella orbigniana subsp. dichotoma (Manza) H.W. Johansen
Current name: Bossiella dichotoma (Manza) P.C. Silva
Bossiella plumosa (Manza) P.C. Silva
Former name: Botryocladia hancockii E.Y. Dawson
Current name: Irvinea hancockii (E.Y. Dawson) Wilkes, McIvor & M. Guiry
Botryocladia neushulii E.Y. Dawson
Botryocladia pseudodichotoma (Farlow) Kylin
Former name: Botryoglossum farlowianum (J. Agardh) De Toni
Current name: Cryptopleura ruprechtiana (J. Agardh) Kylin
Former name: Botryoglossum farlowianum var. anomalum G.J. Hollenberg & I.A. Abbott
Current name: Cryptopleura ruprechtiana (J. Agardh) Kylin
Former name: Botryoglossum ruprechtianum (J. Agardh) De Toni
Current name: Cryptopleura ruprechtiana (J. Agardh) Kylin
Branchioglossum undulatum E.Y. Dawson
Former name: Branchioglossum woodii (J. Agardh) Kylin
Current name: Branchioglossum bipinnatifidum (Montagne) M.J. Wynne
Calliarthron cheilosporioides Manza
Calliarthron tuberculosum (Postels & Ruprecht) E.Y. Dawson
Callithamnion acutum Kylin
Callithamnion biseriatum Kylin
Callithamnion catalinense E.Y. Dawson
Callithamnion paschale Børgesen
Callithamnion pikeanum Harvey
Former name: Callithamnion rupicolum C.L. Anderson
Current name: Callithamnion rupicola C.L. Anderson
*Callithamnion ramosissimum N.L. Gardner
Callocolax fungiformis Kylin
Callophyllis crenulata Setchell
*Callophyllis dissecta Setchell & Swezy
*Callophyllis edentata Kylin
Former name: Callophyllis firma (Kylin) R.E. Norris
Current name: Salishia firma (Kylin) B.E. Clarkston & G.W. Saunders
Callophyllis flabellulata Harvey
Callophyllis heanophylla Setchell
Callophyllis linearis (Kylin) I.A. Abbott & R.E. Norris
*Callophyllis odonthalioides Setchell
Callophyllis obtusifolia J. Agardh
Callophyllis pinnata Setchell & Swezy
*Callophyllis schneideri B.E. Clarkston & G.W. Saunders
Callophyllis thompsonii Setchell
*Callophyllis variegata (Bory de Saint-Vincent) Kützing
Callophyllis violacea J. Agardh
Carpopeltis bushiae (Farlow) Kylin
*Former name: Caulacanthus ustulatus (Turner) Kützing (probably not in California)
Current name: Caulacanthus okamurae Yamada
Centroceras clavulatum (C. Agardh) Montagne
Ceramium affine Setchell & N.L. Gardner
Ceramium avalonae E.Y. Dawson
Ceramium californicum J. Agardh
Ceramium camouii E.Y. Dawson
Ceramium caudatum Setchell & N.L. Gardner
Ceramium clarionense Setchell & N.L. Gardner
Ceramium codicola J. Agardh
Former name: Ceramium eatonianum (Farlow) De Toni
Current name: Corallophila eatoniana (Farlow) T.O. Cho, H.-G. Choi, G.I. Hansen, & S.M. Boo
Ceramium equisetoides E.Y. Dawson
*Ceramium kondoi Yendo
*Ceramium sungminbooii J.R. Hughey & G.H. Boo
Former name: Ceramium taylorii E.Y. Dawson
Current name: Gayliella taylorii (E.Y. Dawson) T.O. Cho & S.M. Boo
Ceramium gardneri Kylin
*Ceramium interruptum Setchell & N.L. Gardner
Ceramium pacificum (Collins) Kylin
Ceramium procumbens Setchell & N.L. Gardner
Ceramium serpens Setchell & N.L. Gardner
Ceramium sinicola Setchell & N.L. Gardner
*Ceramium viscainoense E.Y. Dawson
Ceramium zacae Setchell & N.L. Gardner
Champia parvula (C. Agardh) Harvey
Chiharaea bodegensis H.W. Johansen
*Chiharaea rhododactyla K. Hind & G.W. Saunders
*Chondracanthus bajacalifornicus J.R. Hughey & M.H. Hommersand
*Chondracanthus kjeldsenii J.R. Hughey & M.H. Hommersand
*Chondracanthus serratus (N.L. Gardner) J.R. Hughey & M.H. Hommersand
Chondria arcuata G.J. Hollenberg
Former name: Chondria californica (Collins) Kylin
Current name: Chondria acrorhizophora Setchell & N.L. Gardner
Chondria dasyphylla (Woodward) C. Agardh
Chondria decipiens Kylin
Former name: Chondria nidifica Harvey
Current name: Neochondria nidifica (Harvey) S. Sutti, T. Abe, K.A. Miller & K. Kogame
Chondria oppositiclada E.Y. Dawson
Former name: Choreocolax polysiphoniae Reinsch sensu Abbott & Hollenberg 1976
Current name: Leachiella pacifica Kugrens
Choreonema thuretii (Bornet) F. Schmitz
Former name: Clathromorphum parcum (Setchell & Foslie) W.H. Adey
Current name: Callilithophytum parcum (Setchell & Foslie) P.W. Gabrielson, W.H. Adey, G.P. Johnson & J.J. Hernandez-Kantun
Former name: Coeloseira compressa G.J. Hollenberg
Current name: Gastroclonium compressum (G.J. Hollenberg) C.F. Chang & B.M. Xia
Former name: Coeloseira parva G.J. Hollenberg
Current name: Gastroclonium parvum (G.J. Hollenberg) C.F. Chang & B.M. Xia
Colacodasya californica G.J. Hollenberg
*Colaconema bonnemaisoniae Batters
*Colaconema gymnogongri (Setchell & N.L. Gardner) P.W. Gabrielson
*Colaconema plumosum (K.M. Drew) Woelkerling
*Colaconema plumosum var. variabile (K.M. Drew) P.W. Gabrielson
Constantinea simplex Setchell
Corallina bathybentha E.Y. Dawson
Former name: Corallina frondescens Postels & Ruprecht
Current name: Bossiella frondescens (Postels & Ruprecht) E.Y. Dawson
Former name: Corallina officinalis var. chilensis (Decaisne) Kützing
Current name: Corallina chilensis Decaisne
Former name: Corallina pinnatifolia (Manza) E.Y. Dawson
Current name: Corallina berteroi Montagne ex Kützing
Former name: Corallina polysticha E.Y. Dawson
Current name: Corallina berteroi Montagne ex Kützing
Corallina vancouveriensis Yendo
Coriophyllum expansum Setchell & N.L. Gardner
Former name: Cruoria profunda E.Y. Dawson
Current name: Opuntiella californica (Farlow) Kylin
Former name: Cruoriopsis aestuarii G.J. Hollenberg
Current name: Gloiosiphonia verticillaris Farlow
Cryptonemia angustata (Setchell & N.L. Gardner) E.Y. Dawson
Cryptonemia borealis Kylin
Cryptonemia obovata J. Agardh
Former name: Cryptonemia ovalifolia Kylin
Current name: Isabbottia ovalifolia (Kylin) M.S. Balakrishnan
Former name: Cryptopleura corallinara (Nott) Gardner
Current name: Cryptopleura corallinarum (Nott) Gardner
Cryptopleura crispa Kylin
Cryptopleura dichotoma N.L. Gardner
Cryptopleura lobulifera (J. Agardh) Kylin
Cryptopleura rosacea I.A. Abbott
Cryptopleura violacea (J. Agardh) Kylin
Cryptosiphonia woodii (J. Agardh) J. Agardh
*Crusticorallina adhaerens K.R. Hind, Martone, C.P. Jensen & P.W. Gabrielson
Cumagloia andersonii (Farlow) Setchell & N.L. Gardner
Cumathamnion sympodophyllum M.J. Wynne & Daniels
Dasya sinicola (Setchell & N.L. Gardner) E.Y. Dawson
Dasya sinicola var. abyssicola (E.Y. Dawson) E.Y. Dawson
Dasya sinicola var. californica (N.L. Gardner) E.Y. Dawson
*Dasya sp1. (non-native)
*Dasya sp2. (non-native)
Former name: Delesseria decipiens J. Agardh
Current name: Cumathamnion decipiens (J. Agardh) M.J. Wynne & G.W. Saunders
Dermocorynus occidentalis G.J. Hollenberg
Dilsea californica (J. Agardh) Kuntze
*Dilsea pygmaea (Setchell) Setchell
Dudresnaya colombiana W.R. Taylor
Former name: Endocladia muricata (Postels & Ruprecht) J. Agardh
Current name: Endocladia muricata (Endlicher) J. Agardh
Erythrocladia irregularis Rosenvinge
Former name: Erythrocladia subintegra Rosenvinge
Current name: Sahlingia subintegra (Rosenvinge) Kornmann
Erythrocystis saccata (J. Agardh) P.C. Silva
Erythroglossum californicum (J. Agardh) J. Agardh
Erythrophyllum delesserioides J. Agardh
Former name: Erythrophyllum splendens Doty
Current name: Erythrophyllum delesserioides J. Agardh
Erythrotrichia carnea (Dillwyn) J. Agardh
Former name: Erythrotrichia parksii N.L. Gardner
Current name: Erythrotrichia carnea (Dillwyn) J. Agardh
Erythrotrichia porphyroides N.L. Gardner
Former name: Erythrotrichia pulvinata N.L. Gardner
Current name: Erythrotrichia carnea (Dillwyn) J. Agardh
Former name: Erythrotrichia tetraseriata N.L. Gardner
Current name: Erythrotrichia carnea (Dillwyn) J. Agardh
Erythrotrichia welwitschii (Ruprecht) Batters
Farlowia compressa J. Agardh
Farlowia conferta (Setchell) I.A. Abbott
Farlowia mollis (Harvey & J.W. Bailey) Farlow & Setchell
Former name: Fauchea fryeana Setchell
Current name: Gloiocladia fryeana (Setchell) N. Sánchez & C. Rodríguez-Prieto
Former name: Fauchea galapagensis W.R. Taylor
Current name: Gloiocladia galapagensis (W.R. Taylor) N. Sánchez & C. Rodríguez-Prieto
Former name: Fauchea laciniata J. Agardh
Current name: Gloiocladia laciniata (J. Agardh) N. Sánchez & C. Rodríguez-Prieto
Faucheocolax attenuata Setchell
Fosliella paschalis (Lemoine) Setchell & N.L. Gardner
Fryeella gardneri (Setchell) Kylin
*Fuscifolium papenfussii (Krishnamurthy) S.C. Lindstrom
Gardneriella tuberifera Kylin
Former name: Coeloseira compressa G.J. Hollenberg
Current name: Gastroclonium compressum (G.J. Hollenberg) C.F. Chang & B.M. Xia
Former name: Gastroclonium coulteri (Harvey) Kylin
Current name: Neogastroclonium subarticulatum (Turner) L. Le Gall, Dalen & G.W. Saunders
Former name: Coeloseira parva G.J. Hollenberg
Current name: Gastroclonium parvum (G.J. Hollenberg) C.F. Chang & B.M. Xia
Former name: Gelidiocolax mammillata Fan & G.F. Papenfuss
Current name: Gelidiocolax mammillatus Fan & G.F. Papenfuss
Former name: Gelidiocolax microsphaerica N.L. Gardner
Current name: Gelidiocolax microsphaericus N.L. Gardner
Gelidium arborescens N.L. Gardner
Gelidium coulteri Harvey
*Gelidium gabrielsonii J.R. Hughey & G.H. Boo
*Gelidium kathyanniae J.R. Hughey & G.H. Boo
Gelidium nudifrons N.L. Gardner
Gelidium purpurascens N.L. Gardner
Former name: Gelidium pusillum (Stackhouse) Le Jolis sensu Abbott & Hollenberg 1976 (not in California)
Current name: Gelidium coulteri Harvey
Gelidium robustum (N.L. Gardner) G.J. Hollenberg & I.A. Abbott
*Gelidium vagum Okamura
Former name: Gigartina agardhii Setchell & N.L. Gardner
Current name: Mastocarpus agardhii (Setchell & N.L. Gardner) S.C. Lindstrom, J.R. Hughey & P.T. Martone
Former name: Gigartina canaliculata Harvey
Current name: Chondracanthus canaliculatus (Harvey) M. Guiry
Former name: Gigartina corymbifera (Kützing) J. Agardh
Current name: Chondracanthus corymbiferus (Kützing) M. Guiry
Former name: Gigartina exasperata Harvey & J.W. Bailey
Current name: Chondracanthus exasperatus (Harvey & J.W. Bailey) J.R. Hughey
Former name: Gigartina harveyana (Kützing) Setchell & N.L. Gardner
Current name: Chondracanthus harveyanus (Kützing) M. Guiry
Former name: Gigartina leptorhynchos J. Agardh
Current name: Mazzaella leptorhynchos (J. Agardh) G.L. Leister
Former name: Gigartina papillata (C. Agardh) J. Agardh
Current name: Mastocarpus papillatus (C. Agardh) Kützing
Former name: Gigartina spinosa (Kützing) Harvey
Current name: Chondracanthus spinosus (Kützing) M. Guiry
Former name: Gigartina tepida G.J. Hollenberg
Current name: Chondracanthus tepidus (G.J. Hollenberg) M. Guiry
Former name: Gigartina volans (C. Agardh) J. Agardh
Current name: Mazzaella volans (C. Agardh) S. Fredericq
*Gloiocladia media (Kylin) Filloramo and G.W.Saunders
Gloiopeltis furcata (Postels & Ruprecht) J. Agardh
Gloiosiphonia californica (Farlow) J. Agardh
Former name: Gloiosiphonia capillaris (Hudson) Berkeley
Current name: Gloiosiphonia californica (Farlow) J. Agardh
Gloiosiphonia verticillaris Farlow
Gonimophyllum skottsbergii Setchell
Goniotrichopsis sublittoralis G.M. Smith
Former name: Goniotrichum alsidii (Zanardini) M.A. Howe
Current name: Stylonema alsidii (Zanardini) K.M. Drew
Former name: Goniotrichum cornu-cervi (Reinsch) Hauck
Current name: Stylonema cornu-cervi Reinsch
Former name: Gracilaria andersonii (Grunow) Kylin sensu Abbott & Hollenberg 1976
Current name: Gracilaria papenfussii I.A. Abbott
Gracilaria robusta Setchell
Former name: Gracilaria sjoestedtii Kylin
Current name: Gracilariopsis andersonii (Grunow) E.Y. Dawson
Gracilaria textorii var. cunninghamii (Farlow) E.Y. Dawson
Gracilaria turgida E.Y. Dawson
Gracilaria veleroae E.Y. Dawson
*Former name: Gracilaria vermiculophylla (Ohmi) G.F. Papenfuss
Former name: Agarophyton vermiculophyllum (H. Ohmi) C.F.D. Gurgel, J.N. Norris & S. Fredericq
Current name: Gracilaria vermiculophylla (Ohmi) G.F. Papenfuss
Former name: Gracilaria verrucosa (Hudson) G.F. Papenfuss sensu Abbott & Hollenberg 1976 (not in California)
Current name: Gracilaria pacifica I.A. Abbott
Former name: Gracilariophila gardneri Setchell
Current name: Gracilaria gardneri (Setchell) Gurgel, J.N. Norris et Fredericq
Former name: Gracilariophila oryzoides Setchell & Wilson
Current name: Gracilariopsis oryzoides (Setchell et H.L. Wilson) Gurgel, J.N.Norris et Fredericq
*Gracilariopsis chorda (Holmes) Ohmi
*Grateloupia asiatica S. Kawaguchi & H.W. Wang
Former name: Grateloupia doryphora (Montagne) M.A. Howe sensu Abbott & Hollenberg 1976
Current name: Grateloupia californica Kylin
Former name: Grateloupia filicina (Lamouroux) C. Agardh sensu Abbott & Hollenberg 1976 (not in California)
Grateloupia prolongata J. Agardh
*Grateloupia turuturu Yamada
Former name: Grateloupia setchellii Kylin
Current name: Norrissia setchellii (Kylin) Balakrishnan
Former name: Griffithsia furcellata J. Agardh
Current name: Anotrichium furcellatum (J. Agardh) R.N. Baldock
Griffithsia pacifica Kylin
Gymnogongrus crustiformis E.Y. Dawson
Former name: Gymnogongrus leptophyllus J. Agardh
Former name: Ahnfeltiopsis leptophylla (J. Agardh) P.C. Silva & T.C. DeCew
Current name: Besa leptophylla (J. Agardh) M.S. Calderon & K.A. Miller
Former name: Gymnogongrus linearis (C. Agardh) J. Agardh
Current name: Ahnfeltiopsis linearis (C. Agardh) P.C. Silva & T.C. DeCew
Gymnogongrus martinensis Setchell & N.L. Gardner
Former name: Gymnogongrus platyphyllus N.L. Gardner
Current name: Fredericqia chiton (M.A. Howe) C.A. Maggs, L. Le Gall, F. Mineur, J. Provan & G.W. Saunders
Former name: Haematocelis rubens J. Agardh
Current name: Schizymenia dubyi (Chauvin ex Duby) J. Agardh
Former name: Haematocelis zonalis E.Y. Dawson & Neushul
Current name: Schizymenia sp.
Former name: Haliptylon gracile (Lamouroux) H.W. Johansen
Current name: Jania rosea (Lamarck) Decaisne
Halosaccion glandiforme (S.G. Gmelin) Ruprecht
Halymenia californica G.M. Smith & G.J. Hollenberg
Former name: Halymenia coccinea (Harvey) I.A. Abbott
Current name: Weeksia coccinea (Harvey) S.C. Lindstrom
Halymenia hollenbergii I.A. Abbott
Halymenia schizymenioides G.J. Hollenberg & I.A. Abbott
Helminthocladia australis Harvey
Helminthora stricta N.L. Gardner
Herposiphonia hollenbergii E.Y. Dawson
Herposiphonia littoralis G.J. Hollenberg
Former name: Herposiphonia plumula (J. Agardh) G.J. Hollenberg
Current name: Herposiphonia plumula (J. Agardh) Falkenberg
*Herposiphonia plumula var. parva (Hollenberg) Hollenberg
Former name: Herposiphonia tenella f. secunda (C. Agardh) G.J. Hollenberg
Current name: Herposiphonia secunda (C. Agardh) Ambronn
Herposiphonia verticillata (Harvey) Kylin
Former name: Heteroderma nicholsii Setchell & Mason
Current name: Pneophyllum nicholsii (Setchell & Mason) P.C. Silva & P.W. Gabrielson
Heterosiphonia erecta N.L. Gardner
Former name: Heterosiphonia japonica Yendo sensu Abbott & Hollenberg 1976
Current name: Heterosiphonia densiuscula Kylin
Hildenbrandia dawsonii (Ardre) G.J. Hollenberg
Hildenbrandia occidentalis Setchell
Former name: Hildenbrandia prototypus Nardo
Current name: Hildenbrandia rubra (Sommerfelt) Meneghini
Hollenbergia nigricans (N.L. Gardner) E.M. Wollaston
Hollenbergia subulata (Harvey) E.M. Wollaston
Former name: Holmesia californica (E.Y. Dawson) E.Y. Dawson
Current name: Loranthophycus californicus E.Y. Dawson
Former name: Hydrolithon decipiens (Foslie) W.H. Adey
Current name: Chamberlainium decipiens (Foslie) Caragnano, Foetisch, Maneveldt & Payri
Hymenena cuneifolia M.S. Doty
Hymenena flabelligera (J. Agardh) Kylin
Former name: Hymenena kylinii N.L. Gardner
Current name: Hymenena flabelligera (J. Agardh) Kylin
Hymenena multiloba (J. Agardh) Kylin
Hymenena setchellii N.L. Gardner
Former name: Hymenena smithii Kylin
Current name: Hymenena setchellii N.L. Gardner
Hypnea johnstonii Setchell & N.L. Gardner
Hypnea valentiae (Turner) Montagne
Hypnea valentiae var. gardneri G.J. Hollenberg
Hypnea variabilis Okamura
Former name: Iridaea cordata var. cordata (Turner) Bory sensu Abbott & Hollenberg 1976 (not in California)
Current name: Mazzaella splendens (Setchell & N.L. Gardner) S. Fredericq
Former name: Iridaea cordata var. splendens (Setchell & N.L. Gardner) I.A. Abbott
Current name: Mazzaella splendens (Setchell & N.L. Gardner) S. Fredericq
Former name: Iridaea cornucopiae Postels & Ruprecht sensu Abbott & Hollenberg 1976
Current name: Mazzaella parksii (Setchell & N.L. Gardner) J.R. Hughey, P.C. Silva & M.H. Hommersand
Former name: Iridaea flaccida (Setchell & N.L. Gardner) P.C. Silva
Current name: Mazzaella flaccida (Setchell & N.L. Gardner) S. Fredericq
Former name: Iridaea heterocarpa Postels & Ruprecht sensu Abbott & Hollenberg 1976
Current name: Mazzaella oregona (M.S. Doty) Hughey, P.C. Silva & M.H. Hommersand
Former name: Iridaea lineare (Setchell & N.L. Gardner) Kylin
Current name: Mazzaella linearis (Setchell & N.L. Gardner) S. Fredericq
Former name: Iridaea punicea Postels & Ruprecht sensu Abbott & Hollenberg 1976
Current name: Mazzaella sanguinea (Setchell & N.L. Gardner) M.H. Hommersand
Former name: Iridaea sanguinea (Setchell & N.L. Gardner) G.J. Hollenberg & I.A. Abbott
Current name: Mazzaella sanguinea (Setchell & N.L. Gardner) M.H. Hommersand
Former name: Janczewskia gardneri Setchell & Guernsey
Current name: Heterojanczewskia gardneri (Setchell & Guernsey) K.W.Nam
Former name: Janczewskia lappacea Setchell
Current name: Heterojanczewskia lappacea (Setchell) K.W.Nam
Former name: Janczewskia moriformis Setchell
Current name: Heterojanczewskia moriformis (Setchell) K.W.Nam
Janczewskia solmsii Setchell & Guernsey
Jania adhaerens Lamouroux
Jania crassa Lamouroux
Jania tenella (Kützing) Grunow
Former name: Jantinella verrucaeformis (Setchell & McFadden) Kylin
Current name: Jantinella verruciformis (Setchell & McFadden) Kylin
Kallymenia norrisii G.J. Hollenberg & I.A. Abbott
Former name: Kallymenia oblongifructa Setchell
Current name: Kallymeniopsis oblongifructa (Setchell) G.I. Hansen
Kallymenia pacifica Kylin
Former name: Kylinia rosulata Rosenvinge
Current name: Acrochaetium rosulatum (Rosenvinge) G.F. Papenfuss
Former name: Laurencia blinksii G.J. Hollenberg & I.A. Abbott
Current name: Osmundea blinksii (G.J. Hollenberg & I.A. Abbott) K.W. Nam
Former name: Laurencia crispa G.J. Hollenberg
Current name: Osmundea crispa (G.J. Hollenberg) K.W. Nam
Laurencia decidua E.Y. Dawson
Laurencia gardneri G.J. Hollenberg
Laurencia lajolla E.Y. Dawson
Laurencia masonii Setchell & N.L. Gardner
Laurencia pacifica Kylin
Former name: Laurencia sinicola Setchell & N.L. Gardner sensu Abbott & Hollenberg 1976 (not in California)
Current name: Osmundea crispa (G.J. Hollenberg) K.W. Nam
Former name: Laurencia snyderiae E.Y. Dawson
Current name: Laurencia snyderae E.Y. Dawson
Former name: Laurencia spectabilis var. spectabilis Postels & Ruprecht
Current name: Osmundea spectabilis var. spectabilis (Postels & Ruprecht) K.W. Nam
Former name: Laurencia spectabilis var. diegoensis (E.Y. Dawson) E.Y. Dawson
Current name: Osmundea spectabilis var. diegoensis (E.Y. Dawson) K.W. Nam
Former name: Laurencia splendens G.J. Hollenberg
Current name: Osmundea splendens (G.J. Hollenberg) K.W. Nam
Laurencia subdisticha E.Y. Dawson, Neushul & Wildman
Laurencia subopposita (J. Agardh) Setchell
Former name: Lejolisea pusilla E.Y. Dawson & Neushul
Current name: Lejolisia pusilla E.Y. Dawson & Neushul
Leptocladia binghamiae J. Agardh
Leptofauchea pacifica E.Y. Dawson
*Leptophytum lamellicola A. Athanasiadis & W.H. Adey
Levringiella gardneri (Setchell) Kylin
Liagora californica Zeh
Lithophyllum grumosum (Foslie) Foslie
Lithophyllum imitans Foslie
Former name: Lithophyllum lichenare Mason
Former name: Pseudolithophyllum muricatum (Foslie) R.S. Steneck & R.T. Paine
Current name: Crusticorallina muricata (Foslie) P.W. Gabrielson, P.T. Martone, K.R. Hind, & C.P.Jensen
Lithophyllum proboscideum (Foslie) Foslie
Former name: Lithothamnium
Current name: Lithothamnion
Former name: Lithothamnium aculeiferum Mason
Current name: Mesophyllum crassiusculum (Foslie) P.A. Lebednik
Former name: Lithothamnium australe (Foslie) Foslie
Current name: Lithothamnion australe (Foslie) Foslie
Former name: Lithothamnium californicum Foslie
Current name: Lithothamnion californicum Foslie
Former name: Lithothamnium crassiusculum (Foslie) Mason
Current name: Mesophyllum crassiusculum (Foslie) P.A. Lebednik
Former name: Lithothamnium giganteum Mason
Current name: Lithothamnion giganteum Mason
Former name: Lithothamnium microsporum (Foslie) Foslie
Current name: Leptophytum microsporum (Foslie) A. Athanasiadis & W.H. Adey
Former name: Lithothamnium montereyicum Foslie
Current name: Lithothamnion montereyicum Foslie
Former name: Lithothamnium pacificum (Foslie) Foslie
Current name: Lithothamnion phymatodeum Foslie
Former name: Lithothamnium phymatodeum Foslie
Current name: Lithothamnion phymatodeum Foslie
Former name: Lithothamnium volcanum E.Y. Dawson
Current name: Lithothamnion volcanum E.Y. Dawson
Lithothrix aspergillum J.E. Gray
Lomentaria caseae E.Y. Dawson
Lomentaria hakodatensis Yendo
Maripelta rotata (E.Y. Dawson) E.Y. Dawson
*Mastocarpus alaskensis S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus californianus S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus cristatus (Setchell) S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus intermedius (Setchell & N.L. Gardner) S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus jardinii (J. Agardh) J.A. West
*Mastocarpus latissimus (Harvey) S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus pachenicus L. Le Gall & G.W. Saunders
*Mastocarpus rigidus S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mastocarpus vancouveriensis S.C. Lindstrom, J.R. Hughey & P.T. Martone
*Mazzaella coriacea (E.Y. Dawson) J.R. Hughey
*Mazzaella dewreedei G.W. Saunders & K.R. Millar
*Melanothamnus collabens (C.Agardh) Díaz-Tapia & Maggs
*Former name: Neosiphonia harveyi (Bailey) M.-S. Kim, H.-G. Choi, M. Guiry, & G.W. Saunders
Current name: Melanothamnus harveyi (Bailey) P. Díaz-Tapia & C. Maggs
Melobesia marginata Setchell & Foslie
Melobesia mediocris (Foslie) Setchell & Mason
Former name: Membranella nitens G.J. Hollenberg & I.A. Abbott
Current name: Smithora naiadum (C.L. Anderson) G.J. Hollenberg
Former name: Membranoptera dimorpha N.L. Gardner
Current name: Membranoptera platyphylla (Setchell & N.L. Gardner) Kylin
Former name: Membranoptera multiramosa N.L. Gardner
Current name: Membranoptera platyphylla (Setchell & N.L. Gardner) Kylin
Membranoptera weeksiae Setchell & N.L. Gardner
*Membranoptera tenuis Kylin
Mesophyllum conchatum (Setchell & Foslie) W.H. Adey
Mesophyllum lamellatum (Setchell & Foslie) W.H. Adey
Microcladia borealis Ruprecht
Former name: Microcladia californica Farlow
Current name: Campylaephora californica (Farlow) T.O. Cho
Microcladia coulteri Harvey
*Minium parvum Moe
Former name: Murrayellopsis dawsonii Post
Current name: Veleroa subulata E.Y. Dawson
Myriogramme caespitosa E.Y. Dawson
Myriogramme repens G.J. Hollenberg
Myriogramme spectabilis (Eaton) Kylin
Myriogramme variegata Yamada
*Neevea repens Batters
Former name: Nemalion helminthoides (Velley) Batters
Current name: Nemalion elminthoides (Velley) Batters
Former name: Neoagardhiella baileyi (Kützing) M.J. Wynne & W.R. Taylor
Current name: Sarcodiotheca gaudichaudii (Montagne) P.W. Gabrielson
Neogoniolithon setchellii (Foslie) W.H. Adey
Neopolyporolithon reclinatum (Foslie) W.H. Adey & H.W. Johansen
Former name: Neoptilota californica (Harvey) Kylin
Current name: Ptilota densa C. Agardh
Former name: Neoptilota densa (C. Agardh) Kylin
Current name: Ptilota densa C. Agardh
Former name: Neoptilota hypnoides (Harvey) Kylin
Current name: Ptilota hypnoides Harvey
Nienburgia andersoniana (J. Agardh) Kylin
Nitophyllum cincinnatum I.A. Abbott
Nitophyllum hollenbergii (Kylin) I.A. Abbott
Nitophyllum northii G.J. Hollenberg & I.A. Abbott
Odonthalia floccosa (Esper) Falkenberg
Former name: Odonthalia oregona M.S. Doty
Current name: Neorhodomela oregona (M.S. Doty) M. Masuda
Odonthalia washingtoniensis Kylin
Ophidocladus simpliciusculus (P.L. Crouan & H.M. Crouan) Falkenberg
Opuntiella californica (Farlow) Kylin
Ozophora clevelandii (Farlow) I.A. Abbott
Ozophora latifolia I.A. Abbott
*Pachymeniopsis lanceolata (Okamura) Yamada ex S. Kawabata
*Palmaria hecatensis M.J. Hawkes
Former name: Petrocelis franciscana Setchell & N.L. Gardner
Current name: Mastocarpus papillatus (C. Agardh) Kützing
Former name: Petrocelis haematis G.J. Hollenberg
Current name: Erythrodermis haematis (G.J. Hollenberg) Denizot
Petroglossum pacificum G.J. Hollenberg
Petroglossum parvum G.J. Hollenberg
*Peyssonnelia dubyi P.L. Crouan & H.M. Crouan
Former name: Peyssonellia hairii G.J. Hollenberg & I.A. Abbott
Current name: Peyssonnelia hairii G.J. Hollenberg & I.A. Abbott
Former name: Peyssonellia meridionalis G.J. Hollenberg & I.A. Abbott
Former name: Peyssonnelia meridionalis G.J. Hollenberg & I.A. Abbott
Current name: Olokunia meridionalis (Hollenberg & I.A. Abbott) Pestana, Lyra, Cassano & J.M.C. Nunes
*Peyssonnelia pacifica Kylin
Former name: Peyssonellia profunda G.J. Hollenberg & I.A. Abbott
Current name: Peyssonnelia profunda G.J. Hollenberg & I.A. Abbott
Former name: Peyssonellia rubra var. orientalis A. Weber-van Bosse
Former name: Peyssonnelia orientalis (A. Weber-van Bosse) M. Cormaci & G. Furnari
Current name: Agissea orientalis (Weber Bosse) Pestana, Lyra, Cassano & J.M.C. Nunes
*Phycodrys phycodricola (E.Y. Dawson) J.M. Freese & C.E. Lane
Former name: Phycodrys isabelliae R.E. Norris & M.J. Wynne
Current name: Phycodrys isabellae R.E. Norris & M.J. Wynne
*Phycodrys ovifolia (Kützing) M.J. Wynne
Phycodrys profunda E.Y. Dawson
Phycodrys setchellii Skottsberg
Pikea californica Harvey
Former name: Pikea robusta I.A. Abbott
Current name: Pikea pinnata Setchell
Platysiphonia clevelandii (Farlow) G.F. Papenfuss
Platysiphonia decumbens M.J. Wynne
Platysiphonia parva P.C. Silva & Cleary
Former name: Platythamnion heteromorphum (J. Agardh) J. Agardh
Current name: Pterothamnion heteromorphum (J. Agardh) ) A. Athanasiadis & G.T. Kraft
Former name: Platythamnion pectinatum Kylin
Current name: Pterothamnion pectinatum (Kylin) A. Athanasiadis & G.T. Kraft
Former name: Platythamnion recurvatum E.M. Wollaston
Current name: Pterothamnion recurvatum (E.M. Wollaston) A. Athanasiadis & G.T. Kraft
Former name: Platythamnion villosum Kylin
Current name: Pterothamnion villosum (Kylin) A. Athanasiadis & G.T. Kraft
Pleonosporium squarrosum Kylin
Pleonosporium squarrulosum (Harvey) I.A. Abbott
Pleonosporium vancouverianum (J. Agardh) J. Agardh
Former name: Plocamiocolax pulvinata Setchell
Current name: Plocamiocolax pulvinatus Setchell
Former name: Plocamium cartilagineum (Linnaeus) P.S. Dixon sensu Abbott & Hollenberg 1976
Current name: Plocamium pacificum Kylin
Plocamium oregonum M.S. Doty
Plocamium violaceum Farlow
Former name: Pogonophorella californica (J. Agardh) P.C. Silva
Current name: Dasya binghamiae A.J.K. Millar
Pollexfenia anacapensis E.Y. Dawson & Neushul
Polyneura latissima (Harvey) Kylin
*Polyneura latissimicola J.M. Freese & C.E. Lane
Polyneurella hancockii E.Y. Dawson
*Polyneuropsis stolonifera M.J. Wynne, McBride & J.A. West
Former name: Polysiphonia acuminata N.L. Gardner
Former name: Neosiphonia harveyi (J.W. Bailey) M.-S. Kim, H.-G. Choi, M. Guiry, & G.W. Saunders
Current name: Melanothamnus harveyi (Bailey) Díaz-Tapia & Maggs
Former name: Polysiphonia bajacali G.J. Hollenberg
Current name: Melanothamnus bajacali (Hollenberg) Díaz-Tapia & Maggs
Former name: Polysiphonia brodiaei (Dillwyn) Sprengel
Former name: Polysiphonia brodiei (Dillwyn) Sprengel
Current name: Leptosiphonia brodiei (Dillwyn) A.M. Savoie & G.W. Saunders
Polysiphonia carettia G.J. Hollenberg Serio, D., Furnari, G., Moro, I. & Sciuto, K. 2020. Molecular and morphological characterisation of Melanothamnus testudinis sp. nov. (Rhodophyta, Rhodomelaceae) and its distinction from Polysiphonia carettia, Phycologia, 59:4, 281-291, DOI: 10.1080/00318884.2020.1752531]
Former name: Polysiphonia confusa G.J. Hollenberg
Current name: Eutrichosiphonia confusa (Hollenberg) A.M. Savoie & G.W. Saunders
*Former name: Polysiphonia denudata Dillwyn
Current name: Carradoriella denudata (Dillwyn) A.M. Savoie & G.W. Saunders
Polysiphonia decussata G.J. Hollenberg
Former name: Polysiphonia flaccidissima G.J. Hollenberg
Former name: Neosiphonia flaccidissima (G.J. Hollenberg) M.-S. Kim & I.K. Lee
Current name: Neosiphonia sertularioides (Grateloup) K.W. Nam & P.J. Kang
Polysiphonia hendryi N.L. Gardner
Polysiphonia hendryi var. compacta (G.J. Hollenberg) G.J. Hollenberg
Polysiphonia hendryi var. deliquescens (G.J. Hollenberg) G.J. Hollenberg
Polysiphonia hendryi var. gardneri (Kylin) G.J. Hollenberg
Polysiphonia indigena G.J. Hollenberg
Former name: Polysiphonia japonica var. savatieri (Hariot) Yoon
Former name: Neosiphonia savatieri (Hariot) M.-S. Kim & I.K. Lee
Current name: Melanothamnus savatieri (Hariot) Díaz-Tapia & Maggs
Former name: Polysiphonia johnstonii Setchell & N.L. Gardner
Former name: Neosiphonia johnstonii (Setchell & N.L. Gardner) J.N. Norris
Current name: Melanothamnus johnstonii (Setchell & N.L. Gardner) P. Díaz-Tapia & C. Maggs
Former name: Polysiphonia johnstonii var. concinna (G.J. Hollenberg) G.J. Hollenberg
Former name: Neosiphonia concinna (Hollenberg) J.N.Norris
Current name: Melanothamnus concinnus (Hollenberg) Díaz-Tapia & Maggs
Former name: Polysiphonia mollis J. Hooker & Harvey sensu Abbott & Hollenberg 1976
Former name: Neosiphonia eastwoodiae (Setchell & N.L. Gardner) J.N. Norris
Current name: Melanothamnus eastwoodiae (Setchell & N.L. Gardner) Díaz-Tapia & Maggs
Polysiphonia nathanielii G.J. Hollenberg
Polysiphonia pacifica G.J. Hollenberg
Polysiphonia pacifica var. delicatula G.J. Hollenberg
Former name: Polysiphonia pacifica var. determinata G.J. Hollenberg
Current name: Polysiphonia determinata (Hollenberg) A.M. Savoie & G.W. Saunders
Polysiphonia pacifica var. distans G.J. Hollenberg
Polysiphonia pacifica var. disticha G.J. Hollenberg
Polysiphonia pacifica var. gracilis G.J. Hollenberg
Former name: Polysiphonia paniculata Montagne
Former name: Neosiphonia paniculata (Montagne) J.N. Norris
Former name: Polysiphonia paniculata Montagne
Current name: Eutrichosiphonia paniculata (Montagne) D.E. Bustamante & T.O. Cho
Former name: Polysiphonia scopulorum var. villum (J. Agardh) G.J. Hollenberg
Current name: Polysiphonia villum J. Agardh
Former name: Polysiphonia simplex G.J. Hollenberg
Former name: Neosiphonia simplex (G.J. Hollenberg) Y.-P. Lee
Current name: Melanothamnus simplex (G.J. Hollenberg) Díaz-Tapia & Maggs
Former name: Porphyra abbottiae V. Krishnamurthy
Current name: Pyropia abbottiae (V. Krishnamurthy) S.C. Lindstrom
Former name: Porphyra gardneri (G.M. Smith & G.J. Hollenberg) M.J. Hawkes
Former name: Pyropia gardneri (G.M. Smith & G.J. Hollenberg) S.C. Lindstrom
Former name: Porphyrella gardneri G.M. Smith & Hollenberg
Current name: Pyropia gardneri (G.M. Smith & G.J. Hollenberg) S.C. Lindstrom
Former name: Porphyra hollenbergii E.Y. Dawson
Former name: Pyropia hollenbergii (E.Y. Dawson) J.E. Sutherland, L.E. Aguilar-Rosas & R. Aguilar-Rosas
Former name: Neoporphyra hollenbergii (E.Y.Dawson) L.-E.Yang & J.Brodie
Current name: Pyropia hollenbergii (E.Y. Dawson) J.E. Sutherland, L.E. Aguilar-Rosas & R. Aguilar-Rosas
Former name: Porphyra lanceolata (Setchell & Hus) G.M. Smith
Current name: Pyropia lanceolata (Setchell & Hus) S.C. Lindstrom
Former name: Porphyra miniata (C. Agardh) C. Agardh sensu Abbott & Hollenberg 1976
Current name: Wildemania amplissima (Kjellman) Foslie
*Porphyra mumfordii S.C. Lindstrom & K.M. Cole
Former name: Porphyra nereocystis C.L. Anderson
Current name: Pyropia nereocystis (C.L. Anderson) S.C. Lindstrom
Former name: Porphyra occidentalis Setchell & Hus
Current name: Wildemania occidentalis (Setchell & Hus) S.C. Lindstrom
Former name: Porphyra perforata J. Agardh
Former name: Neoporphyra perforata (J. Agardh) L.-E.Yang & J.Brodie
Current name: Pyropia perforata (J. Agardh) S.C. Lindstrom
Former name: Porphyra pulchra G.J. Hollenberg
Current name: Pyropia pulchra (G.J. Hollenberg) S.C. Lindstrom & J.R. Hughey
*Porphyra purpurea (Roth) C. Agardh
Former name: Porphyra schizophylla G.J. Hollenberg
Current name: Wildemania schizophylla (G.J. Hollenberg) S.C. Lindstrom
Former name: Porphyra smithii G.J. Hollenberg & I.A. Abbott
Current name: Pyropia pulchra (G.J. Hollenberg) S.C. Lindstrom & J.R. Hughey
Former name: Porphyra thuretii E.Y. Dawson
Current name: Pyropia thuretii (Setchell & E.Y. Dawson) J.E. Sutherland, L.E. Aguilar-Rosas & R. Aguilar-Rosas
Porphyrella californica G.J. Hollenberg
Porphyrella gardneri G.J. Hollenberg & G.M. Smith
*Porphyridium marinum Kylin
Porphyropsis coccinea var. dawsonii G.J. Hollenberg & I.A. Abbott
Predaea masonii (Setchell & N.L. Gardner) De Toni
Former name: Prionitis angusta (Harvey) Okamura sensu Abbott & Hollenberg 1976 (not in California)
Current name: Prionitis linearis Kylin
Prionitis australis (J. Agardh) J. Agardh
Prionitis cornea (Okamura) E.Y. Dawson sensu Abbott & Hollenberg 1976 (not in California)
Prionitis filiformis Kylin
Prionitis lanceolata (Harvey) Harvey
Prionitis linearis Kylin
Former name: Prionitis lyallii Harvey
Current name: Prionitis sternbergii (C. Agardh) J. Agardh
Prionitis simplex G.J. Hollenberg & I.A. Abbott
Former name: Pseudogloiophloea confusa (Setchell) Levring
Current name: Scinaia confusa (Setchell) J.M. Huisman
Former name: Pseudolithophyllum neofarlowii (Setchell & Mason) W.H. Adey
Former name: Spongites tumidus (Foslie) K.A.Miller, P.W.Gabrielson, Miklasz, E.van der Merwe & Maneveldt
Current name: Chamberlainium tumidum (Foslie) A. Caragnano, A. Foetisch, G.W. Maneveldt & C.E. Payri
Former name: Pseudoscinaia snyderiae Setchell
Current name: Scinaia snyderae (Setchell) J.M. Huisman
Former name: Pterocladia caloglossoides (M.A. Howe) E.Y. Dawson
Current name: Pterocladiella caloglossoides (M.A. Howe) B. Santelices
Former name: Pterocladia capillacea (S.G. Gmelin) Bornet
Current name: Pterocladiella capillacea (S.G. Gmelin) B. Santelices & M.H. Hommersand
Former name: Pterocladia media E.Y. Dawson
Current name: Pterocladiella media (E.Y. Dawson) G.H. Boo & K.A. Miller
*Pterocladiella luxurians (Collins) G.H. Boo & K.A. Miller
Pterochondria woodii (Harvey) G.J. Hollenberg
Former name: Pterochondria woodii var. pygmaea (Setchell) E.Y. Dawson
Current name: Pterochondria woodii (Harvey) G.J. Hollenberg
Former name: Pterosiphonia baileyi (Harvey) Falkenberg
Former name: Symphyocladia baileyi (Harvey) Savoie & G.W. Saunders
Current name: Symphyocladiella baileyi (Harvey) D.Bustamante, B.Y.Won, S.C.Lindstrom & T.O.Cho
Former name: Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg
Former Name: Polyostea bipinnata (Postels & Ruprecht) Ruprecht
Former name: Savoiea bipinnata (Postels & Ruprecht) M.J. Wynne (not in California)
Current name: Savoiea robusta (N.L. Gardner) M.J. Wynne (in California)
Former name: Pterosiphonia clevelandii (Farlow) G.J. Hollenberg
Current name: Pterosiphonia farlowii G.J. Hollenberg
Former name: Pterosiphonia dendroidea (Montagne) P. Falkenberg
Former name: Symphyocladia dendroidea (Montagne) Savoie & G.W. Saunders
Current name: Symphyocladiella dendroidea (Montagne) D.Bustamante, B.Y.Won, S.C.Lindstrom & T.O.Cho
Former name: Pterosiphonia pennata (C. Agardh) P. Falkenberg sensu Abbott & Hollenberg 1976
Former name: Pterosiphonia californica Kylin
Current name: Xiphosiphonia pennata (C. Agardh) Savoie & G.W. Saunders
Former name: Pterosiphonia robusta N.L. Gardner
Former name: Polyostea robusta (N.L. Gardner) A.M. Savoie & G.W. Saunders
Current name: Savoiea robusta (N.L. Gardner) M.J. WynnePyropia hollen
Ptilota filicina J. Agardh
Ptilothamnion codicola (E.Y. Dawson) I.A. Abbott
Ptilothamnionopsis lejolisea (Farlow) P.S. Dixon
Pugetia fragilissima Kylin
Pulvinia epiphytica G.J. Hollenberg
*Pyropia bajacaliforniensis L.E. Aguilar Rosas & J.R. Hughey
*Pyropia columbiensis S.C. Lindstrom
*Pyropia conwayae (S.C. Lindstrom & K.M. Cole) S.C. Lindstrom
Former name: Pyropia hiberna (S.C. Lindstrom & K.M. Cole) S.C. Lindstrom
Current name: Pyropia lanceolata (Setchell & Hus) S.C. Lindstrom
*Pyropia kanakaensis (Mumford) S.C. Lindstrom
*Pyropia montereyensis S.C. Lindstrom & J.R. Hughey
*Pyropia nitida L.K. Harden, K.M. Morales, & J.R. Hughey
*Pyropia protolanceolata S.C. Lindstrom & J.R. Hughey
*Pyropia pseudolanceolata (V. Krishnamurthy) S.C. Lindstrom
*Former name: Pyropia suborbiculata (Kjellman) J.E. Sutherland, H.-G. Choi, M.S. Hwang & W.A. Nelson
Former name: Calidia suborbiculata (Kjellman) L.-E. Yang & Brodie
Former name: Phycocalidia suborbiculata (Kjellman) W.J.E. Santiañez & M.J. Wynne
Current name: Pyropia suborbiculata (Kjellman) J.E. Sutherland, H.-G. Choi, M.S. Hwang & W.A. Nelson
Reticulobotrys catalinae E.Y. Dawson
Former name: Rhodochorton concrescens K.M. Drew
Current name: Meiodiscus concrescens (K.M. Drew) P.W. Gabrielson
Rhodochorton purpureum (Lightfoot) Rosenvinge
Rhododiscus carmelita G.J. Hollenberg & I.A. Abbott
Former name: Rhodoglossum affine (Harvey) Kylin
Current name: Mazzaella affinis (Harvey) S. Fredericq
Former name: Rhodoglossum californicum (J. Agardh) I.A. Abbott
Current name: Mazzaella californica (J. Agardh) De Toni f.
Former name: Rhodoglossum oweniae G.J. Hollenberg & I.A. Abbott
Current name: Mazzaella californica (J. Agardh) De Toni f.
Former name: Rhodoglossum parvum G.M. Smith & G.J. Hollenberg
Current name: Mazzaella parva (G.M. Smith & G.J. Hollenberg) J.R. Hughey, P.C. Silva, & M.H. Hommersand
Former name: Rhodoglossum roseum (Kylin) G.M. Smith
Current name: Mazzaella rosea (Kylin) S. Fredericq
*Rhodella violacea (P. Kornmann) W. Wehrmeyer
Former name: Rhodomela larix (Turner) C. Agardh
Current name: Neorhodomela larix (Turner) M. Masuda
Former name: Rhodophysema elegans (P.L. & H.M. Crouan) Batters sensu Abbott & Hollenberg 1976
Current name: Rhodophysema odonthaliae M. Masuda & M. Ohta
Former name: Rhodophysema elegans var. polystromatica (Batters) P.S. Dixon sensu Abbott & Hollenberg 1976
Current name: Rhodophysema minus G.J. Hollenberg & I.A. Abbott
Former name: Rhodoptilum plumosum (Harvey & J.W. Bailey) Kylin
Current name: Dasya plumosum (Harvey & J.W. Bailey) M.M.Cassidy, C.W.Schneid. & G.W.Saunders
Rhodymenia arborescens E.Y. Dawson
Rhodymenia californica Kylin
Rhodymenia callophyllidoides G.J. Hollenberg & I.A. Abbott
Former name: Rhodymenia californica var. attenuata (E.Y. Dawson) E.Y. Dawson
Current name: Rhodymenia californica Kylin
Former name: Rhodymenia hancockii E.Y. Dawson
Current name: Rhodymenia arborescens E.Y. Dawson (in California)
Former name: Rhodymenia lobata E.Y. Dawson
Current name: Rhodymenia pacifica Kylin
Rhodymenia pacifica Kylin
Former name: Rhodymenia palmata var. mollis Setchell & N.L. Gardner
Former name: Palmaria mollis (Setchell & N.L. Gardner) van der Meer & Bird
Current name: Devaleraea mollis (Setchell & N.L. Gardner) G.W. Saunders, C.J. Jackson & Salomaki
Rhodymenia rhizoides E.Y. Dawson
Rhodymenia sympodiophyllum E.Y. Dawson & Neushul
Former name: Rhodymeniocolax botryoidea Setchell
Current name: Rhodymeniocolax botryoideus Setchell
Sarcodiotheca furcata (Setchell & N.L. Gardner) Kylin
Sarcodiotheca gaudichaudii (Montagne) P.W. Gabrielson
Scagelia occidentalis (Kylin) E.M. Wollaston
Schimmelmannia plumosa (Setchell) I.A. Abbott
Former name: Schizymenia dawsonii I.A. Abbott
Current name: Sebdenia dawsonii (I.A. Abbott) G.I. Hansen
Former name: Schizymenia epiphytica (Setchell & Lawson) G.M. Smith & G.J. Hollenberg
Current name: Peyssonneliopsis epiphytica Setchell & G.W. Lawson
*Schizymenia dubyi (Chauvin ex Duby) J. Agardh
Schizymenia pacifica (Kylin) Kylin
*Schizymenia sp.
Sciadophycus stellatus E.Y. Dawson
Former name: Scinaia articulata Setchell
Current name: Scinaia johnstoniae Setchell
Scinaia johnstoniae Setchell
Scinaia latifrons M.A. Howe
Former name: Serraticardia macmillanii (Yendo) P.C. Silva
Current name: Johansenia macmillanii (Yendo) K.R. Hind & G.W. Saunders
Smithora naiadum (C.L. Anderson) G.J. Hollenberg
Sorella delicatula (N.L. Gardner) G.J. Hollenberg
Sorella pinnata G.J. Hollenberg
Spyridia filamentosa (Wulfen) Harvey
Former name: Stenogramme interrupta (C. Agardh) Montagne sensu Abbott & Hollenberg 1976
Current name: Stenogramma californicum Harvey
Stylonema alsidii (Zanardini) K.M. Drew
Stylonema cornu-cervi Reinsch
*Symphyocladiella gracilis (Kylin) D. Bustamante, B.Y. Won, S.C. Lindstrom & T.O.Cho 2019
*Symphyocladiella rosea (A.M. Savoie & G.W. Saunders) D. Bustamante, B.Y. Won, S.C. Lindstrom & T.O. Cho 2019
Former name: Pterosiphonia tanakae Uwai & Masuda
Former name: Symphyocladia tanakae (S. Uwai & M. Masuda) Savoie & G.W. Saunders
Former name: Symphiocladiella tanakae D.Bustamante, B.Y.Won, S.C.Lindstrom & T.O.Cho
Current name: Symphyocladiella dendroidea (Montagne) D.Bustamante, B.Y.Won, S.C.Lindstrom & T.O.Cho
*Symphyocladiella spp.
Former name: Tenarea ascripticia (Foslie) W.H. Adey
Former name: Lithophyllum pustulatum f. ascripticium Foslie
Current name: Titanoderma pustulatum (Lamouroux) Nägeli in C. Nägeli & C. Cramer
Former name: Tenarea dispar (Foslie) W.H. Adey
Current name: Lithophyllum dispar (Foslie) Foslie
Former name: Tiffaniella phycophilum (W.R. Taylor) Gordon
Current name: Tiffaniella phycophila (W.R. Taylor) Gordon
Tiffaniella snyderae (Farlow) I.A. Abbott
Former name: Trailliella intricata Batters
Current name: Bonnemaisonia californica Buffham
Veleroa subulata E.Y. Dawson
Weeksia digitata I.A. Abbott
Weeksia howellii Setchell & N.L. Gardner
Weeksia reticulata Setchell
Weeksia templetonii Setchell & N.L. Gardner
Former name: Yamadaia americana E.Y. Dawson & R.L. Steele
Current name: Chiharaea americana (E.Y. Dawson & R.L. Steele) P.T. Martone, S.C. Lindstrom, K.A. Miller & P.W. Gabrielson
Former name: Yamadaea melobesioides Segawa sensu Abbott & Hollenberg 1976 (not in California)
Current name: Chiharaea americana (E.Y. Dawson & R.L. Steele) P.T. Martone, S.C. Lindstrom, K.A. Miller & P.W. Gabrielson
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