IALOMITZIA L. Gruia Card Image
Ialomitzia cavernicola Gruia Card Image
ICHNOPHYCUS J. Hall Card Image
Ichnophycus tridactylus J. Hall Card Image
ICHTHYOBODO C. Pinto Card Image
Ichthyobodo necatrix (Henneguy) Pinto Card Image
ICHTHYOCERCUS W. West & G.S. West Card Image
Ichthyocercus angolensis var. longispinus Borge Card Image
Ichthyocercus angolensis W. West & G.S. West Card Image
Ichthyocercus australiensis Playfair Card Image
Ichthyocercus bourrellyi Tell Card Image
Ichthyocercus cronbergii Bourrelly Card Image
Ichthyocercus humbertii Bourrelly Card Image
Ichthyocercus longispinus (Borge) Playfair Card Image
Ichthyocercus sierra-leonensis Woodhead & Tweed Card Image
ICHTHYODINIUM A. Hollande & J. Cachon Card Image
Ichthyodinium chabelardii ('chabelardi') Hollande & J. Cachon Card Image
ICHTHYODONTUM Scott & G.W. Prescott Card Image
Ichthyodontum sachlanii Scott & Prescott Card Image
Ichthyodontum sachlanii var. parorthium Scott & Prescott Card Image
ICONELLA A. Jurilj Card Image
Iconella variabilis Jurilj CAS Card Image
IDIONYMPHA L.R. Cleveland, Hall, E.P. Sanders & Collier Card Image
Idionympha perissa L.R. Cleveland, Hall, E.P. Sanders & Collier Card Image
IGNATIUS H.C. Bold & F.J. MacEntee Card Image
Ignatius tetrasporus Bold & McEntee Card Image
IKEBEA S. Komura INA entry
IKEBEA S. Komura Card Image
Ikebea amphistriata Komura CAS Card Image
Ikebea amphistriata S. Komura INA entry
Ikebea bifurcata Komura CAS Card Image
Ikebea bifurcata S. Komura INA entry
Ikebea clavata Komura CAS Card Image
Ikebea clavata S. Komura INA entry
Ikebea coronata Komura CAS Card Image
Ikebea coronata S. Komura INA entry
Ikebea robusta Komura CAS Card Image
Ikebea robusta S. Komura INA entry
Ikebea tenuis (J. Brun) Akiba CAS Card Image
Ikebea tenuis (J. Brun) F. Akiba INA entry
IKONELLA A. Jurilj Card Image
ILAEA Dumortier {nomen} Card Image
ILEA (Fries) Duby {section of ULVA} Card Image
ILEA (J. Agardh) Wille {section of Enteromorpha} Card Image
ILEA E.M. Fries Card Image
ILEA Fries INA entry
ILEA J. Agardh INA entry
ILEA J. Agardh Card Image
ILEA Wille INA entry
Ilea bertolonii (C. Agardh) Meneghini Card Image
Ilea bertolonii (C. Agardh) Zanardini Card Image
Ilea bertolonii Meneghini ex Zanardini INA entry
Ilea caespitosa (J. Agardh) Nordstedt Card Image
Ilea clathrata (Roth) Gaillon INA entry
Ilea clathrata (Roth) Gaillon Card Image
Ilea clathrata [var.] uncinata (Lyngbye) De Notaris Card Image
Ilea clathrata var. uncinata (Lyngbye) De Notaris INA entry
Ilea compressa (L.) Gaillon Card Image
Ilea compressa (Linnaeus) Gaillon INA entry
Ilea compressa var. crinita Zanardini INA entry
Ilea compressa var. crinita Zanardini INA entry
Ilea compressa var. crinita Zanardini {nomen} Card Image
Ilea fascia (O.F. Müller) E.M. Fries Card Image
Ilea fascia f. caespitosa (J. Agardh) Setchell & Gardner Card Image
Ilea fascia f. debilis (Kützing) Setchell & Gardner Card Image
Ilea fascia f. filiformis (Batters) Setchell & Gardner Card Image
Ilea fascia f. typica Kjellman {nomen} Card Image
Ilea fascia f. zosterifolia (Reinke) Setchell & Gardner Card Image
Ilea filiformis (Batters) Nordstedt Card Image
Ilea fistulosa (Hudson) Gaillon Card Image
Ilea foeniculacea (Hudson) Fries Card Image
Ilea fulvescens (C. Agardh) J. Agardh INA entry
Ilea fulvescens (C.A. Agardh) J.G. Agardh Card Image
Ilea intestinalis (L.) Leiblein Card Image
Ilea intestinalis (Linnaeus) Leiblein INA entry
Ilea tenuissima (J. Agardh) Nordstedt Card Image
Ilea torta (Mertens) [Trevisan] Card Image
Ilea torta (Mertens) Trevisan INA entry
Ilea zostericola Noda Card Image
Ilea zostericola Noda Card Image
Ilea zosterifolia (Reinke) Nordstedt Card Image
ILSELITHINA H. Stradner Card Image
Ilselithina fusa P. H. Roth Card Image
ILSTERIA H.L. Skuja & A.A. Pascher Card Image
ILSTERIA Skuja & Pascher Card Image
Ilsteria eradians Pascher Card Image
Ilsteria lobata Pascher Card Image
Ilsteria quadrijuncta Skuja Card Image
Ilsteria quadrijuncta Skuja Card Image
Ilsteria tetracoccus Pascher Card Image
ILYONEMA K. Anagnostidis & J. Komárek INA entry
IMANTONIA N. Reynolds Card Image
Imantonia rotunda N. Reynolds Card Image
IMBATODINIUM T.F. Vozzhennikova Card Image
Imbatodinium antennatum Gitmez & Sarjeant Card Image
Imbatodinium fractum N.C. Mehrotra & W.A.S. Sargeant Card Image
Imbatodinium fractum N.C. Mehrotra & W.A.S. Sarjeant INA entry
Imbatodinium imbatodinensis T.F. Vozzhennikova Card Image
Imbatodinium kondratjevi Vozzhennikova Card Image
Imbatodinium pomum (R.J. Davey) N.C. Mehrotra & W.A.S. Sargeant Card Image
Imbatodinium pomum (R.J. Davey) N.C. Mehrotra & W.A.S. Sarjeant INA entry
Imbatodinium radiculatum (R.J. Davey) N.C. Mehrotra & W.A.S. Sargeant Card Image
Imbatodinium radiculatum (R.J. Davey) N.C. Mehrotra & W.A.S. Sarjeant INA entry
Imbatodinium verrucosum Vozzhennikova Card Image
Imbatodinium villosum Vozzhennikova Card Image
IMPAGIDINIUM L.E. Stover & W.R. Evitt Card Image
Impagidinium aleatrolophum (Sarjeant) Stover & Evitt Card Image
Impagidinium dispertitum (Cookson & Eisenack) Stover & Evitt Card Image
Impagidinium elegans (Cookson & Eisenack) Stover & Evitt Card Image
Impagidinium maculatum (Cookson & Eisenack) Stover & Evitt Card Image
Impagidinium pacificum J.P. Bujak INA entry
Impagidinium pacificum J.P. Bujak Card Image
Impagidinium pallidum J.P. Bujak INA entry
Impagidinium pallidum J.P. Bujak Card Image
Impagidinium paradoxum (Wall) Stover & Evitt Card Image
Impagidinium patulum (Wall) Stover & Evitt Card Image
Impagidinium simplicium (Cookson & Eisenack) Stover & Evitt Card Image
Impagidinium Strialatum (Wall) Stover & Evitt Card Image
Impagidinium striatum (Clarke & Verdier) Stover & Evitt Card Image
Impagidinium velorum ].P. Bujak Card Image
Impagidinium velorum J.P. Bujak INA entry
Impagidinium victorianum (Cookson & Eisenack) Stover & Evitt Card Image
Impagidinium whitei (Sarjeant) Stover & Evitt Card Image
IMPERIASTER E. Martini Card Image
Imperiaster obscurus (Martini) Martini Card Image
IMPERIELLA G.F. Elliott & P. Süssli Card Image
Imperiella iranica G. F. Elliott & Süssli Card Image
IMPLETOSPHAERIDIUM P. Morgenroth Card Image
Impletosphaeridium capillaceum Morgenroth Card Image
Impletosphaeridium cracens Eaton Card Image
Impletosphaeridium densicomatum (Maier) Morgenroth Card Image
Impletosphaeridium erinaceum Morgenroth Card Image
Impletosphaeridium hirsutum (Ehrenberg) Morgenroth Card Image
Impletosphaeridium implicatum Morgenroth Card Image
Impletosphaeridium insolitum Eaton Card Image
Impletosphaeridium kroemmelbeinii ('krömmelbeini') Morgenroth Card Image
Impletosphaeridium labyrinthus Morgenroth Card Image
Impletosphaeridium luxurium Eaton Card Image
Impletosphaeridium multispinosum Benedek Card Image
Impletosphaeridium panniforme (Gerlach) Morgenroth Card Image
Impletosphaeridium placacanthum (Deflandre & Cookson) Morgenroth Card Image
Impletosphaeridium pycnospinosum Benedek Card Image
Impletosphaeridium rugosum Morgenroth Card Image
Impletosphaeridium transfodum Morgenroth Card Image
Impletosphaeridium whitei (Deflandre & Courteville) Morgenroth Card Image
IMPLICARIA F. Heydrich Card Image
Implicaria reticulata Heydrich Card Image
IMPLUVICULUS A.R. Loeblich, Jr. & H. Tappan Card Image
Impluviculus campidanus P. Pittau INA entry
Impluviculus campidanus P. Pittau Card Image
Impluviculus milonii (Deunff) A.R. Loeblich, Jr. & H. Tappan Card Image
Inaconia michelii ('micheli') Libert Card Image
Inaconia michelii Libert Card Image
INACTIS ([Kützing ex Gomont]) Kirchner Card Image
INACTIS (Kützing) Gomont {subgenus} Card Image
INACTIS [Geitler] {section of Schizothrix} Card Image
INACTIS F.T. Kützing Card Image
INACTIS G.A. Thuret ex M.A. Gomont {subgenus of Schizothrix} Card Image
Inactis austinii ('austini') Wolle ex Forti Card Image
Inactis austinii Wolle Card Image
Inactis corsicana Kützing Card Image
Inactis cresswellii (Gomont) Forti Card Image
Inactis cresswellii (Harvey) Thuret Card Image
Inactis crustacea Kützing Card Image
Inactis ecalcarea Gardner Card Image
Inactis fasciculata (Gomont ex Gomont) Kirchner Card Image
Inactis fasciculata (Naegeli) Grunow ex Rabenhorst Card Image
Inactis fasciculata f. virescens Grunow ex Forti Card Image
Inactis fasciculata f. virescens Grunow ex Rabenhorst Card Image
Inactis funalis (W. West & G.S. West) Forti Card Image
Inactis hawaiensis (Lemmermann) Forti Card Image
Inactis heterotricha (Kützing) Kirchner Card Image
Inactis homoeotricha (Kützing) Kirchner Card Image
Inactis italica Kützing Card Image
Inactis kuetzingii ('kützingii') Rabenhorst Card Image
Inactis kuetzingii var. crustacea ( Kützing) Rabenhorst Card Image
Inactis kuetzingii var. pulvinata (Kützing) Rabenhorst Card Image
Inactis kuetzingii var. tornata (Kützing) Rabenhorst Card Image
Inactis kuetzingii var. vaginata (Naegeli) Rabenhorst Card Image
Inactis lacustris var. caespitosa (Gomont) Forti Card Image
Inactis mexicana (Gomont) Forti Card Image
Inactis obscura G. Dickie Card Image
Inactis penicillata (Gomont) Kirchner Card Image
Inactis penicillata (Kützing) Kirchner Card Image
Inactis polythrix (Hansgirg) Forti Card Image
Inactis polythrix Forti Card Image
Inactis pulvinata (Gomont) Kirchner Card Image
Inactis pulvinata (Kützing) Kützing Card Image
Inactis rivularioides Forti Card Image
Inactis rubella (Gomont) Forti Card Image
Inactis sauteriana Grunow ex Forti Card Image
Inactis sauteriana Grunow ex Rabenhorst Card Image
Inactis scapulorum (Kützing) Thuret Card Image
Inactis septentrionalis (Gomont) Forti Card Image
Inactis simmonsiae (Collins) Forti Card Image
Inactis tinctoria (C. Agardh) Thuret Card Image
Inactis tinctoria (Gomont ex Gomont) Kirchner Card Image
Inactis tornata Kützing Card Image
Inactis tornata var. pulvinata Kützing Card Image
Inactis vaginata (Gomont) Forti Card Image
Inactis vaginata Naegeli Card Image
INCISORIA M. Hajós Card Image
Incisoria inordinata Hajós CAS Card Image
Incisoria lanceolata Hajós & Stradner Card Image
Incisoria punctata Hajós & Stradner Card Image
INDODINIUM A. Kumar INA entry
Indodinium khariensis A. Kumar INA entry
INDOPHYTON Mathur Card Image
INDOPOLIA J. Pia Card Image
Indopolia feddeni Has & Vimal Card Image
Indopolia satyavantii ('satyavanti') Pia Card Image
INDOSPHAERA A. Kumar INA entry
Indosphaera bhujensis A. Kumar INA entry
Indumenthalithus tetracellus-eleganticus ('tetracellus eleganticus') (Shamrai & Lazareva) Vekshina Card Image
INDUMENTHALITHUS V.N. Vekshina Card Image
INEFFIGIATA W. West & G.S. West Card Image
Ineffigiata neglecta W. West & G.S. West Card Image
Ineffigiata neglecta W. West & G.S. West INA entry
INGENHOUZELLA F.B. Gaillon {nomen} Card Image
INGENHOUZELLA Gaillon INA entry
Ingenhouzella flacca (Dillwyn) Gaillon INA entry
Ingenhouzella flacca (Dillwyn) Gaillon Card Image
Ingenhouzella fugacissima (Roth) Gaillon INA entry
Ingenhouzella fugacissima (Roth) Gaillon Card Image
Ingenhouzella priestleyi Gaillon INA entry
Ingenhouzella zonata (F. Weber & Mohr) Gaillon INA entry
Ingenhouzella zonata (Weber & Mohr) Gaillon Card Image
Initialen Card Image
INKYULEEA H.-G. Choi, G.T. Kraft, & G.W. Saunders INA entry
Inkyuleea ballioides (Sonder) H.-G. Choi, G.T. Kraft, & G.W. Saunders INA entry
Inkyuleea beckeri (Schmitz ex Mazza) H.-G. Choi, G.T. Kraft, & G.W. Saunders INA entry
Inkyuleea mariana (Harvey) H.-G. Choi, G.T. Kraft, & G.W. Saunders INA entry
INOCARDION B.A. Masters & Scott Card Image
INOCAULIS J. Hall {info} Card Image
Inocaulis anastomotica Ringueberg Card Image
Inocaulis arbuscula S. A. Miller Card Image
Inocaulis kirkii ('kirki') Ruedemann Card Image
INOCHORION F.T. Kützing Card Image
Inochorion cervicorne Kützing Card Image
Inochorion dichotomum Kützing Card Image
Inochorion multifidum Meneghini Card Image
INOCONIA M.-A. Libert Card Image
INOCONIA M.-A. Libert Card Image
INODERMA F.T. Kützing Card Image
INODERMA F.T. Kützing Card Image
Inoderma fontanum Kützing CAS Card Image
Inoderma lamellosum Kützing Card Image
Inoderma lamellosum Kützing CAS Card Image
Inoderma lamellosum var. fontanum (Kützing) Rabenhorst CAS Card Image
INOMERIA F.T. Kützing Card Image
Inomeria brebissoniana Kützing Card Image
Inomeria fusca Kützing Card Image
Inomeria granulosa Naegeli ex Kützing Card Image
Inomeria roemeriana Kützing Card Image
Inomeria umbilicata Naegeli ex Kützing Card Image
INOPINATELLA G.F. Elliott Card Image
Inopinatella lawsonii G.F. Elliott Card Image
INSILELLA C.G. Ehrenberg Card Image
Insilella africana C. G. Ehrenberg Card Image
Insilella amphicentra C. G. Ehrenberg Card Image
Insilella tenuis C. G. Ehrenberg Card Image
Insilella turgida C. G. Ehrenberg Card Image
Insilella turgida var. aspera C. G. Ehrenberg Card Image
Insilella turgida var. laevis C. G. Ehrenberg Card Image
Insilella verticillata C. G. Ehrenberg Card Image
INTERFILUM Chodat Card Image
Interfilum paradoxum Chodat & Topali Card Image
Interfilum paradoxum var. reticulatum Fritsch & John Card Image
INTERMURELLA G.F. Elliott Card Image
Intermurella scotica G. F. Elliott Card Image
INTERNORETIA W.A. Setchell & N.L. Gardner Card Image
Internoretia fryeana W.A. Setchell & N.L. Gardner Card Image
Interpositus sertiformis E.I. Gorgulevskaya Card Image
INTERTHAMNION Gordon Card Image
Interthamnion attenuatum Gordon Card Image
INTEXTULELLA A.A. Petryk Card Image
Intextulella agglomerata Petryk Card Image
INTORTUM S. Kumano INA entry
INTORTUM S. Kumano {subsection of Batrachospermum} Card Image
INVERTOCYSTA L.E. Edwards INA entry
INVERTOCYSTA L.E. Edwards Card Image
Invertocysta lacrymosa L.E. Edwards INA entry
Invertocysta lacrymosa L.E. Edwards Card Image
Invertocysta tabulata L.E. Edwards INA entry
Invertocysta tabulata L.E. Edwards Card Image
INVOLUCRANA R.N. Baldock & H.B.S. Womersley Card Image
Involucrana crassa (Hooker & Harvey) Gordon Card Image
Involucrana meredithiana (J. Agardh) Baldock & Womersley Card Image
INZERIA Krylov Card Image
Inzeria conjuncta Preiss {form, not species} Card Image
Inzeria multiplex Preiss {form (not species)} Card Image
IONIA L.P. Perestenko INA entry
Ionia cornu-cervi L.P. Perestenko INA entry
IREKSOKONIA K. Meier Card Image
Ireksokonia formosa K. Meier Card Image
IRIDAEA \{also on card: subgenus or section Porphyridaea J. Agardh\} Card Image
Iridaea (Bory) Kim \{also on card: subgenus of Gigartina\} Card Image
Iridaea affinis Postels & Ruprecht Card Image
Iridaea agardhiana (Setchell & Gardner) Kylin Card Image
Iridaea agathoicus Delf & Michell Card Image
Iridaea arabica Montagne mss. Card Image
Iridaea atropurpurea J. Agardh INA entry
Iridaea atropurpurea J. Agardh Card Image
Iridaea augustinae Bory INA entry
Iridaea augustinae Bory Card Image
Iridaea australasica J. Agardh Card Image
Iridaea belangeri Bory Card Image
Iridaea berteroana Montagne in Herb. propr. Card Image
Iridaea binderi J. Agardh ex Kützing Card Image
Iridaea boryana (Setchell & Gardner) Skottsberg Card Image
Iridaea caespitipes (Setchell & Gardner) Skottsberg Card Image
Iridaea califorica (J. Agardh) Kylin Card Image
Iridaea capensis J. Agardh INA entry
Iridaea capensis J. Agardh Card Image
Iridaea capensis var. elongata Grun. Card Image
Iridaea carnosa J. Agardh ex Kützing Card Image
Iridaea ciliata Kützing Card Image
Iridaea clathrata Decaisne Card Image
Iridaea clavellosa Suhr Card Image
Iridaea convoluta (J. E. Areschoug ex J. Agardh) Hewitt Card Image
Iridaea cordata (Turn.) Bory Card Image
Iridaea cordata [var.] elongata Suhr [apparently mscr.] Card Image
Iridaea cordata var. dichotoma Hooker f. & Harvey Card Image
Iridaea cordata var. splendens (Setchell & Gardner) Abbott Card Image
Iridaea coriacea (Setchell & Gardner) Scagel Card Image
Iridaea cornea Kützing Card Image
Iridaea cornucopiae Postels & Ruprecht Card Image
Iridaea cornucopiae Postels & Ruprecht INA entry
Iridaea cornucopiae subsp. japonica (Yamada & Mikami) Perestenko Card Image
Iridaea cornucopiae subsp. yendoi (Yamada & Mikami) Perestenko Card Image
Iridaea cornucopiae var. papillata Postels & Ruprecht Card Image
Iridaea cornucopiae var. papillata Postels & Ruprecht INA entry
Iridaea crispata Bory de Saint-Vincent INA entry
Iridaea crispata Bory de Saint-Vincent Card Image
Iridaea curvata Kützing Card Image
Iridaea cutleriae Montagne Card Image
Iridaea decipiens J.D. Hooker & Harvey Card Image
Iridaea decipiens J.D. Hooker & Harvey INA entry
Iridaea dentata [beta] minor Kützing Card Image
Iridaea dentata Kützing Card Image
Iridaea dichotoma (J. Agardh) Endlicher INA entry
Iridaea dichotoma (J. Agardh) Endlicher Card Image
Iridaea dichotoma J.D. Hooker & Harvey INA entry
Iridaea divisa Kützing Card Image
Iridaea dubyi (Chauv.) [Montagne] Card Image
Iridaea dubyi Lenormand in herb. Card Image
Iridaea edulis (Stackhouse) Greville Card Image
Iridaea elliptica Kützing Card Image
Iridaea erinacea (Turner) Bory Card Image
Iridaea explanata Suhr Card Image
Iridaea fimbriata Kützing Card Image
Iridaea fissa Suhr Card Image
Iridaea flaccida (Setchell & Gardner) P. C. Silva Card Image
Iridaea fluitans Stackhouse Card Image
Iridaea foliifera Harvey Card Image
Iridaea foliosa Meneghini Card Image
Iridaea fulgens (Setchell & Gardner) Papenfuss Card Image
Iridaea furcata (Setchell & Gardner) Papenfuss Card Image
Iridaea gigantea J. Agardh Card Image
Iridaea gigantea Kützing Card Image
Iridaea harveyi De Toni Card Image
Iridaea heterocarpa Postels & Ruprecht Card Image
Iridaea heterocarpa Postels & Ruprecht INA entry
Iridaea heterococca Kützing Card Image
Iridaea hilliana Greville Card Image
Iridaea insignis Endlicher & Diesing Card Image
Iridaea irregularis Kützing INA entry
Iridaea irregularis Kützing Card Image
Iridaea labyrinthifolia Kützing Card Image
Iridaea lacera Postels & Ruprecht Card Image
Iridaea laminarioides Bory de Saint-Vincent INA entry
Iridaea laminarioides Bory de Saint-Vincent Card Image
Iridaea laminarioides Bory f. typica Setchell Card Image
Iridaea laminarioides f. cordata (Turner) Setchell & Gardner Card Image
Iridaea laminarioides f. minor Setchell Card Image
Iridaea laminarioides f. parvula Kjellman Card Image
Iridaea laminarioides f. punicea (Postels & Ruprecht) Setchell & Gardner Card Image
Iridaea laminarioides var. cornucopiae (Postels & Ruprecht) J. Agardh Card Image
Iridaea laminarioides var. laciniata Grun. Card Image
Iridaea lanceolata Harvey INA entry
Iridaea lanceolata Harvey Card Image
Iridaea lanceolata Harvey mss. Card Image
Iridaea lapathifolia Kützing INA entry
Iridaea lapathifolia Kützing Card Image
Iridaea latissima (Hooker & Harvey) Grunow Card Image
Iridaea lilacina Postels & Ruprecht Card Image
Iridaea lilacina Postels & Ruprecht INA entry
Iridaea linearis (Setchell & Gardner) Kylin Card Image
Iridaea littoralis Crouan fr. Card Image
Iridaea lubrica (Suhr) Kützing Card Image
Iridaea lubrica Suhr Card Image
Iridaea lusoria (Greville) Harvey Card Image
Iridaea macrodonta Skottsberg Card Image
Iridaea marginata (Roussel) Endlicher Card Image
Iridaea mawsonii ('mawsoni') Lucas Card Image
Iridaea mawsonii ('mawsoni') Lucas Card Image
Iridaea membranacea J. Agardh INA entry
Iridaea membranacea J. Agardh Card Image
Iridaea mertensiana Postels & Ruprecht Card Image
Iridaea micans [var.] obovata (Kützing) Kützing Card Image
Iridaea micans Bory Card Image
Iridaea micans Bory Card Image
Iridaea micans Bory [beta] ciliolata Hook. f. & Harvey Card Image
Iridaea micans var. augustinae (Bory) Hariot Card Image
Iridaea micrococca Kützing Card Image
Iridaea microphylla 'Harvey' Card Image
Iridaea minor (J. Agardh) Endlicher Card Image
Iridaea montagnei Bory Card Image
Iridaea oblongifructa Setchell INA entry
Iridaea oblongifructa Setchell Card Image
Iridaea obovata Kützing Card Image
Iridaea obtusiloba E. S. Sinova Card Image
Iridaea orbitosa Suhr Card Image
Iridaea oregona (Doty) Papenfuss Card Image
Iridaea ornata Postels & Ruprecht Card Image
Iridaea papillata (Agardh) Greville Card Image
Iridaea papillosa Bory Card Image
Iridaea papillosa Bory de Saint-Vincent INA entry
Iridaea papillosa Bory de Saint-Vincent Card Image
Iridaea pappeana Kützing Card Image
Iridaea pappeana Sonder mscr. Card Image
Iridaea parksii (Setchell & Gardner) Papenfuss Card Image
Iridaea parvula (Kjellman) Papenfuss Card Image
Iridaea phyllocarpa Postels & Ruprecht Card Image
Iridaea phyllocarpa Postels & Ruprecht INA entry
Iridaea pinnata Postels & Ruprecht Card Image
Iridaea platyna (Agardh) Kützing Card Image
Iridaea platyna (Agardh) Postels & Ruprecht Card Image
Iridaea polycarpa Harvey Card Image
Iridaea Postels & Ruprecht \{also on card: sect. of Iridaea\} Card Image
Iridaea prolifera (J. Agardh) De Toni Card Image
Iridaea proliferans Skottsberg Card Image
Iridaea pulchra Kützing Card Image
Iridaea pulchra Kützing Card Image
Iridaea punicea Postels & Ruprecht Card Image
Iridaea purpurea (J. Agardh) De Toni Card Image
Iridaea pustulosa Postels & Ruprecht Card Image
Iridaea radula (Esper) Bory Card Image
Iridaea reediae (Setchell & Gardner) Papenfuss Card Image
Iridaea remuliformis Ricker Card Image
Iridaea reniformis (Turn.) Greville Card Image
Iridaea reticulata Montagne Card Image
Iridaea rosea Kylin INA entry
Iridaea rosea Kylin Card Image
Iridaea ruprechtiana E. S. Sinova Card Image
Iridaea ruprechtiana E.S. Sinova INA entry
Iridaea ruprechtiana f. angustifolia E. S. Sinova Card Image
Iridaea sanguinea (Setchell & Gardner) Hollenberg & Abbott Card Image
Iridaea serratifolia 'J. Agardh' Card Image
Iridaea sinicola (Setchell & Gardner) Papenfuss Card Image
Iridaea socialis Postels & Ruprecht Card Image
Iridaea socialis Postels & Ruprecht INA entry
Iridaea splendens (Setchell & Gardner) Papenfuss Card Image
Iridaea stiriata (Turner) Hooker f. & Harvey Card Image
Iridaea tagana Welwitsch Card Image
Iridaea tuberculosa (J.D. Hooker & Harvey) G.L. Leister Card Image
Iridaea tuberculosa (J.D. Hooker & Harvey) G.L. Leister INA entry
Iridaea undulata 'J. Agardh' Card Image
Iridaea undulosa [beta] papillosa Bory Card Image
Iridaea undulosa Bory Card Image
Iridaea violacea [beta] prolifera Kützing Card Image
Iridaea violacea Kützing Card Image
Iridaea volans (Agardh) Greville Card Image
Iridaea whidbeyana (Setchell & Gardner) Scagel Card Image
Iridaea yemensis Montagne Card Image
IRIDEA Bory Card Image
IRIDEA Stackhouse Card Image
Iridea clavellosa Suhr INA entry
Iridea fissa Suhr INA entry
IRIDEAE \{also on card: several sections by Postels & Ruprecht\} Card Image
IRIDOPHYCUS \{also on card: subgenera Chondriridaea Setchell & Gardner, Gigartiridaea Setchell & Gardner\} Card Image
IRIDOPHYCUS Setchell & Gardner Card Image
Iridophycus agardhianum Setchell & Gardner Card Image
Iridophycus boryanum Setchell & Gardner Card Image
Iridophycus caespitipes Setchell & Gardner Card Image
Iridophycus californicum (J. Agardh) Dawson Card Image
Iridophycus capensis (J. Agardh) Setchell & Gardner Card Image
Iridophycus ciliatum (Kützing) Setchell & Gardner Card Image
Iridophycus cordatum (Turner) Setchell & Gardner Card Image
Iridophycus coriaceum Setchell & Gardner Card Image
Iridophycus cornucopiae (Postels & Ruprecht) Setchell & Gardner Card Image
Iridophycus crispatum (Bory) Setchell & Gardner Card Image
Iridophycus dichotomum Setchell & Gardner INA entry
Iridophycus flaccidum Setchell & Gardner Card Image
Iridophycus flaccidum Setchell & Gardner INA entry
Iridophycus fulgens Setchell & Gardner Card Image
Iridophycus heterocarpum (Postels & Ruprecht) Setchell & Gardner Card Image
Iridophycus heterocarpum (Postels & Ruprecht) Setchell & Gardner Card Image
Iridophycus laminarioides (Bory) Setchell & Gardner Card Image
Iridophycus lineare Setchell & Gardner Card Image
Iridophycus lineare Setchell & Gardner INA entry
Iridophycus membranaceum (J. Agardh) Setchell & Gardner Card Image
Iridophycus micans (Bory) Setchell & Gardner Card Image
Iridophycus micrococcum (Kützing) Setchell & Gardner Card Image
Iridophycus obovatum (Kützing) Setchell & Gardner Card Image
Iridophycus oregonum Doty Card Image
Iridophycus oregonus M.S. Doty INA entry
Iridophycus parksii Setchell & Gardner Card Image
Iridophycus parksii Setchell & Gardner INA entry
Iridophycus parvulum (Kjellman) Setchell & Gardner Card Image
Iridophycus reediae Setchell & Gardner Card Image
Iridophycus sanguineum Setchell & Gardner Card Image
Iridophycus sanguineum Setchell & Gardner INA entry
Iridophycus sinicola Setchell & Gardner Card Image
Iridophycus splendens Setchell & Gardner Card Image
Iridophycus splendens Setchell & Gardner INA entry
Iridophycus subdichotomum Nagai Card Image
Iridophycus undulosum (Bory) Setchell & Gardner Card Image
Iridophycus whidbeyanum Setchell & Gardner Card Image
IRTUGOVIA L.P. Perestenko INA entry
Irtugovia pacifica (Harvey) L.P. Perestenko INA entry
Irtugovia shimamurana (Nagai) L.P. Perestenko INA entry
Irtugovia spirographidis (Schiffner) L.P. Perestenko INA entry
IRVINEA M.D. Guiry INA entry
Irvinea ardreana (J. Brodie & M.D. Guiry) M.D. Guiry INA entry
Isabelidinium acuminatum ('acuminata') (Cookson & Eisenack) Stover & Evitt Card Image
Isabelidinium balmei (Cookson & Eisenack) Stover & Evitt Card Image
Isabelidinium cretaceum ssp. gravidum S. Mao & B.A.R. Mohr INA entry
Isabelidinium cretaceum ssp. oviforme S. Mao & B.A.R. Mohr INA entry
Isabelidinium cretaceum subsp. gravidum S. Mao & B.A.R. Mohr Card Image
Isabelidinium cretaceum subsp. oviforme S. Mao & B.A.R. Mohr Card Image
Isabelidinium extremum (Cookson & Eisenack) Stover & Evitt Card Image
Isabelidinium gallia (Davey & Verdier) Stover & Evitt Card Image
Isabelidinium magnum (Davey) Stover & Evitt Card Image
Isabelidinium majae P. Schiøler INA entry
ISABOTTIA M.S. Balakrishnan INA entry
ISABOTTIA M.S. Balakrishnan Card Image
Isabottia ovalifolia (Kylin) M.S. Balakrishnan INA entry
Isabottia ovalifolia (Kylin) M.S. Balakrishnan Card Image
ISACTIS (Thuret) Thuret \{also on card: Section of Rivularia\} Card Image
ISACTIS Thuret Card Image
ISACTIS Thuret ex Bornet & Flahault Card Image
Isactis caespitosa (Kützing) Wolle Card Image
Isactis caespitosa f. tenuior-viridis ('tenuior viridis') Rabenhorst Card Image
Isactis centrifuga Bornet Card Image
Isactis centrifuga Bornet Card Image
Isactis fluviatilis (Kützing) Kirchner Card Image
Isactis nipponica Hirose Card Image
Isactis plana (Harvey) Thuret Card Image
Isactis plana f. fissurata (Crouan) Batters Card Image
Isactis plana Thuret ex Bornet & Flahault Card Image
Isactis plana var. fissurata (Crouan fr.) Bornet & Flahault Card Image
Isactis plana var. fissurata Bornet & Flahault Card Image
Isactis plana var. plana Card Image
ISCHADITES R. I. Murchison Card Image
Ischadites abbottae Nitecki Card Image
ISHIGE Yendo Card Image
Ishige foliacea Okamura Card Image
Ishige foliacea Okamura mscr. Card Image
Ishige okamurai Yendo Card Image
Ishige sinicola (Setchell & Gardner) Chibara Card Image
ISHIGEALES G.Y. Cho & S.M. Boo INA entry
Ishigi okamurai Yendo INA entry
Islandinium brevispinosum V. Pospelova & M.J. Head INA entry
ISOCHROUS Kjellman \{also on card: Subgenus of Acrosiphonia\} Card Image
ISOCHRYSIDIDAE Reichenow INA entry
ISOCHRYSIS M. Parke Card Image
Isochrysis galbana M. Parke Card Image
Isochrysis litoralis Billard & Gayral Card Image
Isochrysis maritima Billard & Gayral Card Image
ISOCOCCUS F. E. Fritsch Card Image
Isococcus sphagnicolus Fritsch Card Image
ISOCRYSTALLITHUS J. W. Verbeek Card Image
ISOCYSTIS Borzí Card Image
ISOCYSTIS Borzí ex Bornet & Flahault Card Image
Isocystis andalusica ('andalusicus') González Guerrero Card Image
Isocystis halobia K. Anagnostidis & M. Roussomoustakaki Card Image
Isocystis halobia K. Anagnostidis & M. Roussomoustakaki INA entry
Isocystis infusiona ('infusionum') (Kützing) Borzí Card Image
Isocystis infusiona ('infusionum') Borzí ex Bornet & Flahault Card Image
Isocystis lithophila Ercegovic Card Image
Isocystis major Weber-van Bosse Card Image
Isocystis messanensis Borzí Card Image
Isocystis messanensis Borzí ex Bornet & Flahault Card Image
Isocystis minutissima ('minutissimum') (Kützing) J. Komárek & K. Anagnostidis \{pcs\} Card Image
Isocystis minutissima (Kützing) J. Komárek & K. Anagnostidis INA entry
Isocystis moniliformis Borzí Card Image
Isocystis moniliformis Borzí ex Bornet & Flahault Card Image
Isocystis planctonica Starmach Card Image
Isocystis richteri (Elenkin) J. Komárek & K. Anagnostidis Card Image
Isocystis richteri (Elenkin) J. Komárek & K. Anagnostidis INA entry
Isocystis spermosiroides Borzí Card Image
Isocystis spermosiroides Borzí ex Bornet & Flahault Card Image
ISODISCUS (Rattray) Schütt Card Image
ISODISCUS Rattray Card Image
Isodiscus coronalis J. Brun Card Image
Isodiscus coronatus "Brun" Card Image
Isodiscus debyi (Grove & Sturt) Rattray (CAS) Card Image
Isodiscus mirificus Rattray (CAS) Card Image
ISOGONIA J. Agardh Card Image
ISOGONIUM (Kützing) de Bary \{also on card: subgenus of Oedogonium\} Card Image
ISOGONIUM Kützing \{also on card: section of Oedogonium\} Card Image
Isogonium capillare Kützing Card Image
ISOMENIA De la Pylaie Card Image
Isomenia palmata (L.) De la Pylaie Card Image
ISOMERIA Chevallier Card Image
Isomeria lyngbyei Chevallier Card Image
ISOMITA Diesing Card Image
ISOMITA Diesing \{also on card: [subgenus] of Monas\} Card Image
ISOMITA T. Cavalier-Smith INA entry
Isomita angusta (Dujardin) Diesing Card Image
Isomita dunalii (Joly) Diesing Card Image
ISONEMA Schuster, Goldstein, & Hershenov Card Image
Isonema nigricans Schuster, Goldstein, & Hershenov Card Image
ISOPHLIS Rafinesque INA entry
ISOPHLIS Rafinesque Card Image
Isophlis concentrica ('concentricus') Rafinesque \{pcs\} Card Image
Isophlis concentrica Rafinesque INA entry
ISOPHYTA C. Jeffrey INA entry
ISOPTERA Okamura Card Image
Isoptera regularis Okamura Card Image
ISOSELMIS Butcher Card Image
Isoselmis obconica Butcher Card Image
Issinella grandis Tchuvashov Card Image
Issinella sainsii Mamet & Roux Card Image
ISTHMIA C. Agardh Card Image
Isthmia africana Ehrenberg (CAS) Card Image
Isthmia capensis Grunow Card Image
Isthmia capensis Grunow (CAS) Card Image
Isthmia catenata Meneghini Card Image
Isthmia domuslaterariae Reinhold (CAS) Card Image
Isthmia enervis [beta] subcylindrica Ralfs Card Image
Isthmia enervis Ehrenberg Card Image
Isthmia enervis f. intermedia Grunow (CAS) Card Image
Isthmia enervis var. capensis Grunow Card Image
Isthmia enervis var. gracilis Ehrenberg (CAS) Card Image
Isthmia enervis var. japonica Castracane (CAS) Card Image
Isthmia enervis var. schmidtii Heiden Card Image
Isthmia filiformis (Ehrenberg) Meneghini Card Image
Isthmia fortii Forti & Schulz (CAS) Card Image
Isthmia japonica (Castracane) Sournia (CAS) Card Image
Isthmia lindigiana Grunow & Eulenstein Card Image
Isthmia membranacea Cleve (CAS) Card Image
Isthmia minima Harvey & Bailey Card Image
Isthmia nankoorensis Grunow Card Image
Isthmia nervosa Kützing Card Image
Isthmia nervosa var. nankoorensis Grunow (CAS) Card Image
Isthmia obliquata (J. E. Smith) C. Agardh (CAS) Card Image
Isthmia obliquata [beta] tenuior C. Agardh Card Image
Isthmia polymorpha Montagne Card Image
Isthmia polymorpha Montagne ms. Card Image
Isthmia polymorpha Montagne {cont} Card Image
Isthmia reticularis J. Brun Card Image
Isthmia squinaboli (Forti) Forti Card Image
Isthmia squinaboli Forti var. crassior Forti Card Image
Isthmia squinaboli var. crassior Forti Card Image
Isthmia stomatophora (Turpin) Meneghini Card Image
Isthmia szaboi Pantocsek (CAS) Card Image
Isthmia tenuicornis Grunow Card Image
Isthmia vertebrata (Brébisson) Meneghini Card Image
Isthmia vesiculosa (C. Agardh) C. Agardh (CAS) Card Image
Isthmia vitrea Kitton (CAS) Card Image
ISTHMIELLA Cleve Card Image
Isthmiella enervis (Ehrenberg) Cleve (CAS) Card Image
ISTHMOCHLORON (Skuja) Bourrelly \{also on card: sect. of Pseudostaurastrum\} Card Image
ISTHMOCHLORON Skuja Card Image
Isthmochloron gracile (Reinsch) Skuja Card Image
Isthmochloron gracile f. reductum Skuja Card Image
Isthmochloron lobulatum (Nägeli) Skuja Card Image
Isthmochloron subtetraëdricum (Reinsch) Skuja Card Image
Isthmochloron trispinatum (W. West & G.S. West) Skuja Card Image
ISTHMOLITHUS Deflandre Card Image
Isthmolithus claviformis Brönnimann & Stradner Card Image
Isthmolithus recurvus Deflandre Card Image
Isthmolithus triplus Levin & Joerger Card Image
Isthmolithus unipons Bramlette & Sullivan Card Image
ISTHMOPLEA Kjellman Card Image
Isthmoplea rupincola Foslie Card Image
Isthmoplea sphaerophora (Carmichael ex W. H. Harvey) Gobi Card Image
ISTHMOSIRA Kützing Card Image
Isthmosira excavata (Ralfs) Kützing Card Image
Isthmosira filiformis (Ehrenberg) Kützing Card Image
Isthmosira vertebrate (Brébisson) Kützing Card Image
ISYMENIA (J. Agardh) J. Agardh Card Image
ISYMENIA J. Agardh \{also on card: subgenus of Halymenia\} Card Image
Isymenia angusta J. Agardh Card Image
Isymenia decipiens (J. Agardh) J. Agardh Card Image
Isymenia elongata (C. Agardh) J. Agardh Card Image
Isymenia flabellata J. Agardh Card Image
Isymenia trigona (J. Agardh) J. Agardh Card Image
ITIERIA Saporta Card Image
ITONOA M. Masuda & M.D. Guiry Card Image
ITONOA M. Masuda & M.D. Guiry INA entry
Itonoa marginifera (J. Agardh) M. Masuda & M.D. Guiry Card Image
Itonoa marginifera (J. Agardh) M. Masuda & M.D. Guiry INA entry
ITTIACANTHE Donati Card Image
IVANOVIA Khvorova Card Image
Ivanovia tenuissima Khvorova Card Image
IWANOFFIA Pascher Card Image
IWANOFFIA Pascher Card Image
IWANOFFIA Pascher mscr. \{also on card: Subgenus of Stigeoclonium\} Card Image
Iwanoffia terrestris (Ivanov) Pascher Card Image
IYENGARIA Børgesen Card Image
Iyengaria stellata (Børgesen) Børgesen Card Image
IYENGARIELLA Desikachary Card Image
Iyengariella endolithica J. S. Seeler & S. Golubic Card Image
Iyengariella endolithica J.-S. Seeler & S. Golubic INA entry
Iyengariella tirupatiensis Desikachary Card Image
IYENGARIOMONAS Desikachary Card Image
Iyengariomonas loligo (Conrad) Desikachary Card Image
IZHELLA Antropov Card Image
Izhella nubiformis Antropov Card Image
IZZIELLA Doty Card Image
Izziella abbottae Doty Card Image
Izziella orientalis (J. Agardh) J.M. Huisman & T. Schils INA entry