Index Nominum Algarum Image Index
643 CARD IMAGES
beginning with POLYSIPHONIA jacobii G. De Notaris
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- Polysiphonia jacobii ('jacobi') G. De Notaris
- Polysiphonia jacobii ('Jacobi') De Notaris
- Polysiphonia japonica Harvey
- Polysiphonia japonica var. forfex (Harvey) H.Y. Yoon
- Polysiphonia japonica var. savatieri (Hariot) H.Y. Yoon
- Polysiphonia japonica var. teradomariensis (M. Noda) H.Y. Yoon
- Polysiphonia javanica V. Martens
- Polysiphonia johnstonii Setchell & Gardner
- Polysiphonia johnstonii var. concinna (Hollenberg) Hollenberg
- Polysiphonia juncea Kützing
- Polysiphonia kampsaxii Børgesen
- Polysiphonia kappannae ('kappannai') Sreenivasa Rao
- Polysiphonia kellneri G. Zanardini
- Polysiphonia kieliana Kaminski & Nizamuddin
- Polysiphonia kotschyana Grunow
- Polysiphonia kowiensis H. Stegenga, J.J. Bolton, & R. J. Anderson
- Polysiphonia krausii Sonder {probably ined.}
- Polysiphonia kuetzingii ('Kützingii') Meneghini in herb. Sonder
- Polysiphonia laevigata Kützing
- Polysiphonia laevigata var. forcipata (J. Agardh) Kützing
- Polysiphonia lanosa (L.) G. Tandy
- Polysiphonia lasiorhiza Kützing
- Polysiphonia lasiotricha Kützing
- Polysiphonia latiovalis Noda
- Polysiphonia latiovalis Noda
- Polysiphonia lawrenciana Harvey
- Polysiphonia laxa Kützing
- Polysiphonia laxa Harvey
- Polysiphonia laxiuscula Meneghini ex Kützing
- Polysiphonia lepadicola (H.C. Lyngbye) K.P.J. Sprengel
- Polysiphonia lepadicola var. intricata [Zanardini]
- Polysiphonia lepadicola var. paradoxa Meneghini
- Polysiphonia lepadicola var. intricata (Agardh) Zanardini
- Polysiphonia leptoclada (Montagne) Kützing
- Polysiphonia leptoclonia Zanardini ex A. De Toni
- Polysiphonia leptothrix Zanardini
- Polysiphonia leptura Kützing
- Polysiphonia leptura f. depauperata Schiffner
- Polysiphonia ligustica De Notaris herb.
- Polysiphonia linocladia Kützing
- Polysiphonia lithophila Kützing
- Polysiphonia lithophila Zanardini
- Polysiphonia littoralis Harvey ms.
- Polysiphonia littoralis Harvey mscr.
- Polysiphonia longiarticulata G. Zanardini
- Polysiphonia longissima J. Agardh
- Polysiphonia lophuroides Kützing
- Polysiphonia lophoclados (Montagne) Kützing
- Polysiphonia lophura Kützing
- Polysiphonia lubrica (C. Agardh) Zanardini
- Polysiphonia lusitanica Montagne in litt.
- Polysiphonia lusitanica Montagne ex Kützing
- Polysiphonia lutensis G. Zanardini
- Polysiphonia luxurians (C. Agardh) Postels & Ruprecht
- Polysiphonia lyallii J. D. Hooker & Harvey
- Polysiphonia lyngbyei (C. Agardh) Harvey
- Polysiphonia lyngbyei Kützing
- Polysiphonia lyngbyei var. robusta (Kützing) Rabenhorst
- Polysiphonia lyngbyei var. trichodes (Kützing) Rabenhorst
- Polysiphonia macra Harvey
- Polysiphonia macounii Hollenberg
- Polysiphonia macrarthra Zanardini
- Polysiphonia macrocarpa (C. Agardh) K.P.J. Sprengel
- Polysiphonia macrocarpa Harvey
- Polysiphonia macrocephala Zanardini
- Polysiphonia macroclonia Kützing
- Polysiphonia mallardiae (Harvey) Harvey
- Polysiphonia mallardiae (Harvey) Kützing
- Polysiphonia marchantiae ('marchantae') Setchell & Gardner
- Polysiphonia marrowii Harvey
- Polysiphonia martensiana Kützing
- Polysiphonia masonii Setchell & Gardner
- Polysiphonia megarthra Zanardini ex A. De Toni
- Polysiphonia melagonium Meneghini
- Polysiphonia melanochroa Kützing
- Polysiphonia meneghiniana De Notaris
- Polysiphonia meneghiniana De Notaris
- Polysiphonia micracantha Zanardini
- Polysiphonia micracantha Zanardini ex A. De Toni
- Polysiphonia micrantha "Zanardini"
- Polysiphonia microcarpa J. Hooker & Harvey
- Polysiphonia microdendron J. Agardh
- Polysiphonia miniata (Agardh) Endlicher
- Polysiphonia minutissima Hollenberg
- Polysiphonia mollis J. Hooker & W.H. Harvey
- Polysiphonia mollis J. Hooker ex Kützing
- Polysiphonia mollis var. tongatensis (W.H. Harvey ex F.T. Kützing) G.J. Hollenberg
- Polysiphonia monilifera J. Hooker & Harvey
- Polysiphonia monocarpa Montagne
- Polysiphonia montagnei De Notaris
- Polysiphonia montagnei De Notaris
- Polysiphonia montagnei De Notaris
- Polysiphonia montagnei De Notaris ex Kützing
- Polysiphonia morisiana J. Agardh
- Polysiphonia moritziana Sonder ex Kützing
- Polysiphonia morrowii W.H. Harvey
- Polysiphonia moestingii ('Möstingii') (Lyngbye) Sprengel
- Polysiphonia mottei M. Lauret
- Polysiphonia mucosa Crouan fr.
- Polysiphonia mucronata Kützing in litt
- Polysiphonia muelleriana J. Agardh
- Polysiphonia multicapsularis Zanardini
- Polysiphonia multifida Duby
- Polysiphonia multifida Kützing
- Polysiphonia mutabilis Harvey
- Polysiphonia myriococca Montagne
- Polysiphonia nana Kützing
- Polysiphonia nathanielii Hollenberg
- Polysiphonia nebulosa Zanardini
- Polysiphonia namibiensis H. Stegenga, J.J. Bolton, & R.J. Anderson
- Polysiphonia nana Kützing
- Polysiphonia nana Harvey
- Polysiphonia neglecta Harvey mss. nom. nudum
- Polysiphonia neglecta W.H. Harvey
- Polysiphonia nemalionis Zanardini
- Polysiphonia nhatrangensis Pham Hoàng Hô
- Polysiphonia nigra (Hudson) Batters
- Polysiphonia nigra var. agardhiana (Greville) Batters
- Polysiphonia nigrella Crouan frat.
- Polysiphonia nigrescens (W. Hudson) R.K. Greville
- Polysiphonia nigrescens (Hudson) Wallroth
- Polysiphonia nigrescens var. affinis (Moore) Harvey
- Polysiphonia nigrescens f. affinis (Moore) J. Agardh
- Polysiphonia nigrescens var. congesta Lenormand in herb.
- Polysiphonia nigrescens var. congesta Lenormand
- Polysiphonia nigrescens var. congesta Lenormand in herb. Crouan
- Polysiphonia nigrescens var. delicatissima H. Van Heurck
- Polysiphonia nigrescens var. disticha Harvey
- Polysiphonia nigrescens var. durkeei Harvey
- Polysiphonia nigrescens f. fastigiata Suringar
- Polysiphonia nigrescens var. flaccida [Areschoug]
- Polysiphonia nigrescens f. flaccida (Areschoug) Rosenvinge
- Polysiphonia nigrescens var. fucoides (W. Hudson) W.H. Harvey
- Polysiphonia nigrescens f. fucoides J.G. Agardh
- Polysiphonia nigrescens var. gracillima Harvey
- Polysiphonia nigrescens f. pectinata (C. Agardh) J. Agardh
- Polysiphonia nigrescens f. pinnata Suringar
- Polysiphonia nigrescens var. plumosa Harvey
- Polysiphonia nigrescens f. protensa J. Agardh
- Polysiphonia nigrescens var. gracilis Kjellman
- Polysiphonia nigrescens f. reducta Svedelius
- Polysiphonia nigrescens var. secundata Suhr ex Rabenhorst
- Polysiphonia nigrescens f. fasciculata v. Suhr in litt.
- Polysiphonia nigrescens f. fastigiata v. Suhr in litt.
- Polysiphonia nigrescens f. pectinata v. Suhr in litt.
- Polysiphonia nigrescens f. senticosa (Suhr) J. Agardh
- Polysiphonia nigrescens var. tenuis Harvey
- Polysiphonia nigrita Sonder
- Polysiphonia nipponica Segi
- Polysiphonia nitens Meneghini
- Polysiphonia nivea Greville mscr.
- Polysiphonia nivea Greville mscr.
- Polysiphonia nizamuddinii Farooqui & M. Begum
- Polysiphonia nodifera Kützing
- Polysiphonia nodulosa J.G. Agardh
- Polysiphonia notarisii Meneghini
- Polysiphonia notoensis Segi
- Polysiphonia novae-angliae W. R. Taylor
- Polysiphonia nutans Montagne
- Polysiphonia obscura (C. Agardh) J. Agardh
- Polysiphonia obsoleta Segi
- Polysiphonia ocellata Gratel.
- Polysiphonia ohmaensis Ohta
- Polysiphonia olneyi Harvey
- Polysiphonia olneyi Harvey
- Polysiphonia olneyi Harvey
- Polysiphonia opaca (C. Agardh) G.G. Moris & G. De Notaris
- Polysiphonia opaca f. adscendens (Bonnemaison) J. Agardh
- Polysiphonia opaca var. erythrocoma (Kützing) Schiffner
- Polysiphonia opaca var. fasciculata (Kützing) Schiffner
- Polysiphonia opaca var. intricata [Zanardini]
- Polysiphonia opaca var. intricata (Agardh) Zanardini
- Polysiphonia opaca var. macrocephala (Zanardini) Schiffner
- Polysiphonia opaca f. opaca J. Agardh
- Polysiphonia opaca var. ophiocarpa (Kützing) Ardissone
- Polysiphonia opaca f. ramulosa (C. Agardh) J. Agardh
- Polysiphonia opaca var. ramulosa (Kützing) Schiffner
- Polysiphonia opaca var. repens (Kützing) Schiffner
- Polysiphonia opaca var. repens (Kützing) Schiffner
- Polysiphonia opaca f. nana Schiffner
- Polysiphonia opaca f. simplicior J. Agardh
- Polysiphonia opaca var. tripinnata (J. Agardh) Ardissone
- Polysiphonia opaca var. tripinnata Ardissone
- Polysiphonia opaca var. spiculifera (Zanardini) Schiffner
- Polysiphonia ophiocarpa Kützing
- Polysiphonia orbigniana Kützing
- Polysiphonia ornata J.G. Agardh
- Polysiphonia orthocarpa J.L.A.K. Rosenvinge
- Polysiphonia pacifica G.J. Hollenberg
- Polysiphonia pacifica var. delicatula G.J. Hollenberg
- Polysiphonia pacifica var. determinata G.J. Hollenberg
- Polysiphonia pacifica var. distans G.J. Hollenberg
- Polysiphonia pacifica var. disticha G.J. Hollenberg
- Polysiphonia pacifica var. gracilis G.J. Hollenberg
- Polysiphonia paniculata J.P.F.C. Montagne
- Polysiphonia pantophloea F.T. Kützing
- Polysiphonia pappeana Kützing
- Polysiphonia paradoxa G.A. Thuret
- Polysiphonia parasitica (Hudson) Greville
- Polysiphonia parasitica var. coralloides Kützing
- Polysiphonia parasitica f. dendroidea (Montagne) J. Agardh
- Polysiphonia parasitica f. parasitica J. Agardh
- Polysiphonia parasitica f. reptans J. Agardh
- Polysiphonia parasitica f. typica Kjellman
- Polysiphonia parthasarathyi ('parthasarathyae') Sreenivasa Rao
- Polysiphonia parvula (C. Agardh) J.P.F.C. Montagne
- Polysiphonia parvula G. Zanardini
- Polysiphonia parvula Suhr in herb. Sonder
- Polysiphonia patens (Dillwyn) Greville
- SCANNING ERROR
- SCANNING ERROR
- Polysiphonia patersonis Sonder
- Polysiphonia patula Kützing
- Polysiphonia pauperula Kützing
- Polysiphonia pecten J. E. Areschoug
- Polysiphonia pecten-veneris ('Pecten Veneris') Harvey
- Polysiphonia pecten-veneris ('Pecten veneris') Harvey in herb. Sonder
- Polysiphonia pectinata J. Hooker & Harvey
- Polysiphonia pectinata Harvey
- Polysiphonia pectinata Harvey
- Polysiphonia pectinella W.H. Harvey
- Polysiphonia penicillata (C. Agardh) Sprengel
- Polysiphonia pennata (C.A. Agardh) J.P.F.C. Montagne
- Polysiphonia pennata var. pumila (C. Agardh) Zanardini
- Polysiphonia pentamera Hollenberg
- Polysiphonia periclados (C. Agardh) Endlicher
- Polysiphonia perpusilla J. Agardh
- Polysiphonia perreymondii J.G. Agardh
- Polysiphonia perriniae Womersley
- Polysiphonia peucedanoides (Bonnem.) Crouan frat.
- Polysiphonia physarthra (Kützing) Kützing
- Polysiphonia piligera Zanardini ex. A. De Toni
- Polysiphonia pilosa (F.L. Naccari) G. Zanardini
- Polysiphonia pinnulata Kützing
- Polysiphonia platycarpa Børgesen
- Polysiphonia platyspira Kützing
- Polysiphonia plumigera Harvey mscr.
- Polysiphonia plumula J.G. Agardh
- Polysiphonia poko Hollenberg
- Polysiphonia poko var. longii Hollenberg
- Polysiphonia polycarpa Kützing
- Polysiphonia polycephala A. De Toni
- Polysiphonia polychotoma Kützing
- Polysiphonia polychroma Martens
- Polysiphonia polymorpha (L.) Duby
- Polysiphonia polyphora Kützing
- Polysiphonia polyphysa Kützing
- Polysiphonia polyphysa Kützing
- Polysiphonia polyrhiza Kützing
- Polysiphonia polyspora (C.A. Agardh) J.P.F.C. Montagne
- Polysiphonia porphyroides Kützing
- Polysiphonia porrecta Segi
- Polysiphonia profunda Hollenberg
- Polysiphonia propagulifera Womersley
- Polysiphonia prorepens Harvey
- Polysiphonia prorepens Harvey
- Polysiphonia prostrata Harvey
- Polysiphonia pseudovillum Hollenberg
- Polysiphonia pulchella De Notaris
- Polysiphonia pulchella De Notaris
- Polysiphonia pulvinata (A.W. Roth) K.P.J. Sprengel
- Polysiphonia pulvinata var. carminata Crouan fr.
- Polysiphonia pulvinata f. parvula Heydrich
- Polysiphonia pulvinata var. pygmaea (Kützing) Rabenhorst
- Polysiphonia pungens G.J. Hollenberg
- Polysiphonia punicea Montagne
- Polysiphonia purpurascens Harvey
- Polysiphonia purpurata Zanardini ex A. De Toni
- Polysiphonia purpurea A.P. Postels & F.J. Ruprecht
- Polysiphonia purpurea (C.A. Agardh) J.G. Agardh
- Polysiphonia purpurea f. elata J. Agardh
- Polysiphonia purpurea f. innovans J. Agardh
- Polysiphonia purpurea f. purpurea J. Agardh
- Polysiphonia purpureocoerulea ('purpureo-coerulea') Sonder
- Polysiphonia pycnocoma Kützing
- Polysiphonia pycnophloea Kützing
- Polysiphonia pygmaea F.T. Kützing
- Polysiphonia quadrata Hollenberg
- Polysiphonia radicans (G.G.A. Meneghini) J.G. Agardh
- Polysiphonia raineriana ('ranieriana') (Zanardini) Zanardini \{pcs\}
- Polysiphonia ramellosa Kützing
- Polysiphonia ramentacea Harvey
- Polysiphonia ramulosa (C.A. Agardh) K.P.J. Sprengel
- Polysiphonia ramulosa Harvey
- Polysiphonia recurva (C. Agardh) Sprengel
- Polysiphonia regularis Kützing
- Polysiphonia regularis Kützing
- Polysiphonia repens Kützing
- Polysiphonia repens var. penicillata Kützing
- Polysiphonia reptabunda (Suhr) Kützing
- Polysiphonia reptabunda Suhr ex F.T. Kützing
- Polysiphonia requienii Montagne ex Kützing
- Polysiphonia rhizoidea Meñez
- Polysiphonia rhododactyla Harvey
- Polysiphonia rhodomeloides Kützing
- Polysiphonia rhunensis Thuret mscr.
- Polysiphonia richardsonii ('richardsoni') Hooker
- Polysiphonia rigens (C.A. Agardh) G. Zanardini
- Polysiphonia rigens P.K.A. Schousboe
- Polysiphonia rigidula Kützing
- Polysiphonia rigidula (Bonnem.) Crouan frat.
- Polysiphonia robusta F.T. Kützing
- Polysiphonia roeana Harvey
- Polysiphonia roeana Harvey
- Polysiphonia rosea Greville
- Polysiphonia roseola (C. Agardh) Fries
- Polysiphonia rostrata Sonder
- Polysiphonia rubrorhiza Hollenberg
- Polysiphonia ruchingeri (C.A. Agardh) G. Zanardini
- Polysiphonia ruchingeri var. firmior [Zanardini]
- Polysiphonia ruchingeri var. firmior (C. Agardh) Zanardini
- Polysiphonia rudis J. Hooker & Harvey
- Polysiphonia rufolanosa Harvey
- Polysiphonia rugulosa Kützing
- Polysiphonia rutilans Kützing
- Polysiphonia rytiphloeoides J. Hooker & Harvey
- Polysiphonia sadoensis Noda
- Polysiphonia sadoensis Noda
- Polysiphonia sanctipetri ('sancti-petri') Collins
- Polysiphonia sanguinea (C.A. Agardh) G. Zanardini
- Polysiphonia sanguinea var. megarthra (Zanardini) Schiffner
- Polysiphonia sanguinea var. intermedia Schiffner
- Polysiphonia savatieri Hariot
- Polysiphonia saxicola G. Zanardini
- Polysiphonia schousboei Thuret
- Polysiphonia schuebeleri ('Schübelerii') Foslie
- Polysiphonia scoparia Kützing
- Polysiphonia scopulorum W.H. Harvey
- Polysiphonia scopulorum W.H. Harvey
- Polysiphonia scopulorum var. macrotrichia Hollenberg
- Polysiphonia scopulorum var. minima Hollenberg
- Polysiphonia scopulorum var. villum (J.G. Agardh) G.J. Hollenberg
- Polysiphonia secunda (C.A. Agardh) G. Zanardini
- Polysiphonia secunda var. adunca [Zanardini]
- Polysiphonia secunda var. adunca (C. Agardh) Zanardini
- Polysiphonia secunda var. rubescens Dufour
- Polysiphonia secundata (Suhr) Kützing
- Polysiphonia senticosa (Suhr) Kützing
- Polysiphonia senticulosa W.H. Harvey
- Polysiphonia senticulosa W.H. Harvey
- Polysiphonia sentosa Kützing
- Polysiphonia sericea Hauck
- Polysiphonia serpens De Notaris, herb.
- Polysiphonia serpens (Dufour) De Notaris ex Ardissone
- Polysiphonia sertularioides (J.P.A.S. Grateloup) J.G. Agardh
- Polysiphonia sertularioides var. tenerrima (Kützing) Hauck
- Polysiphonia setacea Hollenberg ms.
- Polysiphonia setacea G.J. Hollenberg
- Polysiphonia setigera Kützing
- Polysiphonia setigera Kützing
- Polysiphonia shepherdii Womersley
- Polysiphonia siamensis V. Martens
- Polysiphonia simplex G.J. Hollenberg
- Polysiphonia simplicifilum J. Agardh
- Polysiphonia simpliciuscula Crouan frat.
- Polysiphonia simpliciuscula Crouan
- Polysiphonia simulans W.H. Harvey
- Polysiphonia sinicola Setchell & Gardner
- Polysiphonia siretokoensis Yamada
- Polysiphonia snyderae Kylin
- Polysiphonia snyderae var. intricata Hollenberg
- Polysiphonia solieri ('Solierii') J. Agardh
- Polysiphonia sonorensis Hollenberg
- Polysiphonia sparsa (Setchell) Hollenberg
- Polysiphonia sphacelarioides J. Agardh
- Polysiphonia sphaerocarpa F.C.E. Børgesen
- Polysiphonia sphaerocarpa var. cheloniae Hollenberg & J.N. Norris
- Polysiphonia sphaerocarpa var. distans Hollenberg
- Polysiphonia sphaerocarpa var. filifera Hollenberg
- Polysiphonia sphaerospora Børgesen
- Polysiphonia spiculifera Zanardini in herb, Sonder
- Polysiphonia spinella (C. Agardh) J. Agardh
- Polysiphonia spinella (Agardh) Kützing
- Polysiphonia spinescens Montagne
- Polysiphonia spinifera Kützing
- Polysiphonia spinosa (C.A. Agardh) J.G. Agardh
- Polysiphonia spinosa f. genuina [Schiffner]
- Polysiphonia spinosa f. lubrica (C. Agardh) J. Agardh
- Polysiphonia spinosa var. pilosa (Naccari) Schiffner
- Polysiphonia spinosa f. robusta [Schiffner]
- Polysiphonia spinosissima Harvey
- Polysiphonia spinulifera Reinsch
- Polysiphonia spinuligera Zanardini
- Polysiphonia spinulosa R.K. Greville
- Polysiphonia spinulosa f. major J. Agardh
- Polysiphonia spinulosa f. minor J. Agardh
- Polysiphonia spinulosa f. prolifera J. Agardh
- Polysiphonia spinosissima Harvey
- Polysiphonia spiralis L. Batten
- Polysiphonia squarrosa Kützing
- Polysiphonia stangeri J. Agardh
- Polysiphonia stenocarpa Kützing
- Polysiphonia stenocarpa var. minor Kützing
- Polysiphonia stichidiosa G. Funk
- Polysiphonia stictophlaea Kützing
- Polysiphonia stimpsonii W.H. Harvey
- Polysiphonia stricta (L.W. Dillwyn) R.K. Greville
- Polysiphonia stricta var. gracilis Kützing
- Polysiphonia strictioides (Lyngbye) Derb. & Sol.
- Polysiphonia strictissima J. Hooker & Harvey
- Polysiphonia stuposa G. Zanardini
- Polysiphonia subadunca Kützing
- Polysiphonia subadunca f. intricata (C. Agardh) Hauck
- Polysiphonia subadunca var. major [Zeller]
- Polysiphonia subcontinua (C. Agardh) J. Agardh
- Polysiphonia subcontinua (Agardh) Kützing
- Polysiphonia subcontinua var. flocculosa (Kützing) Ardissone
- Polysiphonia subcontorta C. H. Peck
- Polysiphonia subcontorta C. H. Peck
- Polysiphonia subtilis De Notaris
- Polysiphonia subtilis De Notaris
- Polysiphonia subtilis De Notaris
- Polysiphonia subtilis Kützing
- Polysiphonia subtilis Ardissone
- Polysiphonia subtilissima J.P.F.C. Montagne
- Polysiphonia subtilissima var. abbottiae_('abbottae') Hollenberg
- Polysiphonia subtilissima var. westpointensis Harvey
- Polysiphonia subulata (J.A.P. Ducluzeau) P.L. Crouan & H.M. Crouan
- Polysiphonia subulata (J.A.P. Ducluzeau) J.G. Agardh
- Polysiphonia subulata (Ducluzeau) Kützing
- Polysiphonia subulata f. griffithiana (Harvey) J. Agardh
- Polysiphonia subulata f. montagnei (De Notaris) J. Agardh
- Polysiphonia subulata f. perreymondii (J. Agardh) J. Agardh
- Polysiphonia subulata f. purpurea (C. Agardh) Bornet
- Polysiphonia subulata J. Agardh f. vestita Rodríguez y Femenías
- Polysiphonia subulifera (C.A. Agardh) W.H. Harvey
- Polysiphonia subulifera var. polyrhiza Shperk
- Polysiphonia subulifera var. templetonii ('templetoni') Harvey
- Polysiphonia succulenta Harvey
- Polysiphonia sulcata Rudolphi
- Polysiphonia sulivaniae_('sulivanae') J. Hooker & Harvey
- Polysiphonia tapinocarpa Suringar
- Polysiphonia tasmanica (Sonder) J. Agardh
- Polysiphonia taylorii ('Taylori') Hollenberg ex Williams nom. subnud.
- Polysiphonia teges Womersley
- Polysiphonia tenebrosa Harvey
- Polysiphonia tenella (C. Agardh) Moris & De Notaris
- Polysiphonia tenella (C. Agardh) J. Agardh
- Polysiphonia tenera Harvey
- Polysiphonia tenuis (C. Agardh) Fries
- Polysiphonia tenuis Hollenberg
- Polysiphonia tenuissima De Notaris
- Polysiphonia tenuistriata Hook. f. & Harvey
- Polysiphonia tepida Hollenberg
- Polysiphonia teradomariensis M. Noda
- Polysiphonia thuyoides Harvey
- Polysiphonia thwaitesii Harvey
- Polysiphonia thwaitesii Harvey
- Polysiphonia thwaitesii Harvey
- Polysiphonia thyrsigera J. Agardh
- Polysiphonia tinctoria De Notaris
- Polysiphonia tinctoria Zanardini
- Polysiphonia tokidae Segi
- Polysiphonia tongatensis Harvey
- Polysiphonia tongatensis W.H. Harvey ex F.T. Kützing
- Polysiphonia tongatensis var. corallicola (Grunow) Grunow
- Polysiphonia tongatensis var. corallicola Grunow
- Polysiphonia tongatensis var. upolensis Grunow
- Polysiphonia tongatensis var. upolensis Grunow
- Polysiphonia torva De Notaris in herb.
- Polysiphonia trichoclada Kützing
- Polysiphonia trichodes Kützing
- Polysiphonia tripinnata J. Agardh
- Polysiphonia triton P. C. Silva
- Polysiphonia tsudana Hollenberg
- Polysiphonia tuberosa Hollenberg
- Polysiphonia turgidula Crouan frat.
- Polysiphonia tuticorinensis Børgesen
- Polysiphonia ulex Derbes & Solier
- Polysiphonia umbellifera F.T. Kützing
- Polysiphonia uncinata Kützing
- Polysiphonia uncinata (Bonnem.) Crouan frat.
- Polysiphonia uncinata var. intricata (C. Agardh) Kützing
- Polysiphonia unguiformis Børgesen
- Polysiphonia upolensis Grunow
- Polysiphonia urbana Harvey
- Polysiphonia urbanoides Levring
- Polysiphonia urceolata (L.W. Dillwyn) R.K. Greville
- Polysiphonia urceolata f. comosa (C. Agardh) J. Agardh
- Polysiphonia urceolata f. formosa (Suhr) J. Agardh
- Polysiphonia urceolata var. formosa [(Suhr) Farlow]
- Polysiphonia urceolata f. lepadicola (Lyngbye) Segi
- Polysiphonia urceolata f. patens (Dillwyn) J. Agardh
- Polysiphonia urceolata var. patens (Dillwyn) Harvey
- Polysiphonia urceolata subf. distans Foslie
- Polysiphonia urceolata subf. fasciculata Foslie
- Polysiphonia urceolata f. roseola (C. Agardh) J. Agardh
- Polysiphonia urceolata var. senticulosa (Harvey) Collins
- Polysiphonia urceolata f. typica Kjellman
- Polysiphonia urceolata f. urceolata J. Agardh
- Polysiphonia utricularis Zanardini
- Polysiphonia vaga Kützing
- Polysiphonia vaga (Kützing) Kützing
- Polysiphonia vagabunda Harvey
- Polysiphonia valida J. Agardh
- Polysiphonia variabilis Harvey
- Polysiphonia variabilis Hooker & Harvey
- Polysiphonia variabilis Harvey
- Polysiphonia variabilis var. longiarticulata Harvey
- Polysiphonia variegata (C.A. Agardh) G. Zanardini
- Polysiphonia variegata var. arctica (J. Agardh) Gobi
- Polysiphonia variegata var. fragilis (Sperk) Voronikhin
- Polysiphonia variegata var. genuina [Schiffner]
- Polysiphonia variegata var. leptura (Kützing) Schiffner
- Polysiphonia variegata f. major Schiffner
- Polysiphonia variegata f. minor [Schiffner]
- Polysiphonia variegata var. radicana [Zanardini]
- Polysiphonia variegata var. radicans (C. Agardh) Zanardini
- Polysiphonia veneta G. Zanardini
- Polysiphonia versicolor J. Hooker & Harvey
- Polysiphonia verticillata Harvey
- Polysiphonia vestita J. Agardh
- Polysiphonia victoriae Harvey mscr.
- Polysiphonia victoriae (J. Agardh) Harvey
- Polysiphonia vidovichii Meneghini ex Kützing
- Polysiphonia villifera (C. Agardh) Endlicher
- Polysiphonia villum J.G. Agardh
- Polysiphonia vinosa F.T. Kützing
- Polysiphonia violacea (A.W. Roth) K.P.J. Sprengel
- Polysiphonia violacea f. aculeata (C. Agardh) Rosenvinge
- Polysiphonia violacea f. allochroa (Roth) J. Agardh
- Polysiphonia violacea var. amethystea (Kützing) Kützing
- Polysiphonia violacea var. bulbosa Areschoug
- Polysiphonia violacea var. fibrillosa (Dillwyn) Areschoug
- Polysiphonia violacea f. fibrillosa (Dillwyn) Rosenvinge
- Polysiphonia violacea var. flexicaulis Harvey
- Polysiphonia violacea var. genuina Hauck
- Polysiphonia violacea var. griffithsiana (Harvey) L. Batten
- Polysiphonia violacea var. myriotricha Kützing
- Polysiphonia violacea f. robusta J. Agardh
- Polysiphonia violacea var. subbrodiaei ('sub-brodiaei') Areschoug
- Polysiphonia violacea var. subulata (Ducluzeau) Hauck
- Polysiphonia violacea var. tenuis Greville
- Polysiphonia violacea f. tenuis [(Roth) Rosenvinge]
- Polysiphonia violacea var. tenuissima Areschoug
- Polysiphonia violacea var. violacea Areschoug
- Polysiphonia violacea f. violacea J. Agardh
- Polysiphonia violascens Kützing
- Polysiphonia violascens var. strictiuscula Kützing
- Polysiphonia virens Kützing
- Polysiphonia virens var. major Kützing
- Polysiphonia virgata (C. Agardh) Sprengel
- Polysiphonia vulpina De Notaris herb.
- Polysiphonia vulpina De Notaris
- Polysiphonia woodii W.H. Harvey
- Polysiphonia wulfenii ('Wulfeni') (Roth) J. Agardh
- Polysiphonia wulfenii ('Wulfeni') Kützing
- Polysiphonia wulfenii var. forcipata Kützing
- Polysiphonia wulfenii var. fruticulosa (Wulfen) Rabenhorst
- Polysiphonia yendoi Segi
- Polysiphonia yokoskensis Hariot
- Polysiphonia yonakuniensis Segi
- Polysiphonia zanardinii Schiffner
- Polysiphonia zimmermannii ('Zimmermanni') Suhr mscr.
- Polysiphonia zostericola Lucas
- POLYSOLENIA J.D. Hooker
- POLYSOLENIA C.G. Ehrenberg
- POLYSOLENIA C.G. Ehrenberg ex F.T. Kützing
- Polysolenia closterium C.G. Ehrenberg
- POLYSPERMA J.P.E. Vaucher
- Polysperma abyssinicum (Kützing) Kuntze
- Polysperma annulatum_('annulata') (Kützing) Trevisan
- Polysperma australe (Atkinson) Kuntze \{pcs\}
- Polysperma caespitosum (Bornemann) Kuntze \{pcs\}
- Polysperma catenatum_('catenata') (Kützing) Trevisan
- Polysperma ciliatum (Sirodot) Kuntze \{pcs\}
- Polysperma dichotomum (DC) Kuntze \{pcs\}
- Polysperma fluviatile_('fluviatilis') (L.) Vaucher
- Polysperma glomeratum_('glomerata') (L.) Vaucher
- Polysperma grande (Wolle) Kuntze
- Polysperma italicum (Meneghini) Kuntze \{pcs\}
- Polysperma mamillosum (Kützing) Kuntze \{pcs\}
- Polysperma mexicanum (Kützing) Kuntze
- Polysperma nodosum (Kützing) Kuntze \{pcs\}
- Polysperma parvulum (Sirodot) Kuntze \{pcs\}
- Polysperma rubrum (Bornemann) Kuntze \{pcs\}
- Polysperma sudeticum_('sudetica') (Kützing) Trevisan
- Polysperma torulosum_('torulosa') (Roth) Trevisan
- Polysperma variegatum_('variegata') (Agardh) Trevisan
- Polyspermum corinaldii (Meneghini) Trevisan
- Polyspermum dillwynii ('Dillwyni') Trevisan
- Polyspermum fluviatile (L.) Weber & Mohr
- Polyspermum fucinum (Bory) Trevisan
- Polyspermum subtile (Agardh) Trevisan
- POLYSPHAERA H. Reisigl
- Polysphaera composita Reisigl
- POLYSPHAERIDIUM R.J. Davey & G.L. Williams
- Polysphaeridium asperum (Maier) Davey & Williams
- Polysphaeridium belgicum Sarjeant
- Polysphaeridium cephalum R.K. Kar
- Polysphaeridium conispinum (Davey & Verdier) Stover & Evitt
- Polysphaeridium deflandrei (Valensi) Davey & Williams
- Polysphaeridium fabium (Tasch, McClure, & Oftedahl) Davey & Williams
- Polysphaeridium fluctuans (Pastiels) Davey & Williams invalid
- Polysphaeridium follium (Tasch, McClure, & Oftedahl) Davey & Williams
- Polysphaeridium fucosum (Valensi) Davey & Williams
- Polysphaeridium giganteum Caro
- Polysphaeridium laminaspinosum Davey Williams
- Polysphaeridium marsupium (Tasch, McClure, & Oftedahl) Davey & Williams
- Polysphaeridium microtriainum (B. Klumpp) R.K. Kar
- Polysphaeridium multispinosum R.J. Davey
- Polysphaeridium pastielsii ('pastielsi') Davey & Williams
- Polysphaeridium paulinae (Valensi) Davey & Williams invalid
- Polysphaeridium perovatum (Tasch, McClure, & Oftedahl) Davey & Williams
- Polysphaeridium polypes (Cookson & Eisenack) Davey & Williams
- Polysphaeridium pumilum Davey & Williams
- Polysphaeridium rhabdophorum (Valensi) Davey & Williams
- Polysphaeridium simplex (White) Davey & Williams
- Polysphaeridium subtile Davey & Williams
- Polysphaeridium tribrachiosum (Tasch) Davey & Williams invalid
- Polysphaeridium warrenii Habib
- Polysphaeridium zoharyi (Rossignol) Davey & Williams
- POLYSPHAERINELLA B.L. Mamet
- Polysphaerinella bulla (Conil & Lys) Mamet
- POLYSTEPANEPHORUS W.A.S. Sarjeant
- Polystephanephorus calathus (Sarjeant) Sarjeant
- Polystephanephorus euryanthus Cookson & Eisenack
- Polystephanephorus paracalathus (Sarjeant) Sarjeant
- Polystephanephorus sarjeantii Gitmez
- Polystephanephorus sarrisii Archangelsky
- Polystephanephorus urnaformis (Cookson) Sarjeant
- POLYSTEPHANOSPHAERA W.A.S. Sarjeant
- Polystephanosphaera calathus Sarjeant
- Polystephanosphaera calathus Sarjeant {cont.}
- Polystephanosphaera calathus Sarjeant
- Polystephanosphaera paracalathus Sarjeant
- Polystephanosphaera urnaformis (Cookson) Sarjeant
- Polystephanosphaera valensii Sarjeant
- POLYSTIGMA R. Lauterborn
- Polystigma reniforme R. Lauterborn
- POLYSTRATA F. Heydrich
- Polystrata alba (Pfender) Denizot
- Polystrata compacta (Foslie) Denizot
- Polystrata dura F. Heydrich
- Polystrata dura f. fusca F. Heydrich
- Polystrata dura f. nigra F. Heydrich
- Polystrata fosliei (Weber-van Bosse) Denizot
- POLYTAENIA W.B. Turner \{also on card: subgenus of Spirotaenia\}
- POLYTHRIX G. Zanardini
- POLYTHRIX Zanardini ex Bornet & Flahault
- Polythrix corymbosa (Harvey) Grunow in herb.
- Polythrix corymbosa Grunow in herb. ex Bornet & Flahault
- Polythrix spongiosa Zanardini