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Indexes to all names:
IALOMITZIA L. Gruia Card image
ICHNOPHYCUS J. Hall Card image
ICHTHYOBODO C. Pinto Card image
ICHTHYOCERCUS W. West & G.S. West Card image
ICHTHYODINIUM A. Hollande & J. Cachon Card image
ICHTHYODONTUM Scott & G.W. Prescott Card image
ICONELLA A. Jurilj Card image
IDIONYMPHA L.R. Cleveland, Hall, E.P. Sanders & Collier Card image
IGNATIACEAE F. Leliaert & P. Skaloud Text
IGNATIALES F. Leliaert & P. Skaloud Text
IGNATIUS H.C. Bold & F.J. MacEntee Card image
IKEBEA S. Komura Text
IKONELLA A. Jurilj Card image
ILAEA Dumortier Card image
ILEA (Fries) Duby Card image
ILEA (J. Agardh) Wille Card image
ILEA E.M. Fries Card image
ILEA Fries Text
ILEA J. Agardh Card image
ILEA J. Agardh {illegitimate} Text
ILEA Wille Text
ILEINAE Trevisan Card image
ILIODEAE Pfeiffer Card image
ILIODEES Palisot de Beauvois Card image
ILSELITHINA H. Stradner Text
ILSTERIA H.L. Skuja & A.A. Pascher Card image
ILSTERIA Skuja & Pascher Card image
ILYONEMA K. Anagnostidis & J. Komárek Text
IMANTONIA N. Reynolds Card image
IMBATODINIUM T.F. Vozzhennikova Card image
IMPAGIDINIUM L.E. Stover & W.R. Evitt Card image
IMPARVALVIA S. Komura Text
IMPARVALVIACEAE S. Komura Text
IMPERIASTER E. Martini Card image
IMPERIELLA G.F. Elliott & P. Süssli Card image
IMPLETOSPHAERIDIUM P. Morgenroth Card image
IMPLICARIA F. Heydrich Card image
IMPLUVICULUS A.R. Loeblich, Jr. & H. Tappan Card image
INACOCCUS W.A. Gama, J. Rigonato, M.F. Fiore & C.L. Sant'Anna Text
INACTIS (Kützing) Gomont Card image
INACTIS (Kützing) Hansgirg Card image
INACTIS ([Kützing ex Gomont]) Kirchner Card image
INACTIS F.T. Kützing Card image
INACTIS G.A. Thuret ex M.A. Gomont Card image
INACTIS [Geitler] Card image
INACTIS subgen. EUINACTIS Hansgirg Card image
INALVEOLATA H. Lange-Bertalot, P. Cavacini, N. Tagliaventi & S. Alfinito Text
INARTICULATAE Hooker Card image
INCENDIA K.R. Dixon Text
INCISORIA M. Hajós Card image
INDICONEMA B. Karthick & J.P. Kociolek Text
INDODINIUM A. Kumar Text
INDOPHYTON Mathur Card image
INDOPOLIA J. Pia Card image
INDOSPHAERA A. Kumar Text
INDUMENTHALITHUS V.N. Vekshina Card image
INEFFIGIATA W. West & G.S. West Card image
INFUSORIA Haeckel Card image
INFUSORIA W.S. Kent Card image
INGENHOUZELLA F.B. Gaillon Card image
INGENHOUZELLA Gaillon Text
ININGAINEMA G.B. McGregor & B.C. Sendall Text
INKYULEEA H.-G. Choi, G.T. Kraft, & G.W. Saunders Text
INKYULEEACEAE H.-G. Choi, G.T. Kraft, H.-S. Kim, M.D. Guiry, & G.W. Saunders Text
INKYULEEALES P. Díaz-Tapia & C. Maggs Text
INOCARDION B.A. Masters & Scott Card image
INOCAULIS J. Hall Card image
INOCHORION F.T. Kützing Card image
INOCONIA (Libert) Hansgirg Card image
INOCONIA (M.A. Libert) Hansgirg Text
INOCONIA M.-A. Libert Card image
Card image
INODERMA (Kützing) Hansgirg Card image
INODERMA F.T. Kützing Card image
Card image
INOMERIA (Kützing) Hansgirg Card image
INOMERIA F.T. Kützing Card image
INOPINATELLA G.F. Elliott Card image
INSILELLA C.G. Ehrenberg Card image
INSULARIA V.L. Araújo, A.S. Schnadelbach, J.M.C. Nunes & T.A. Caires Text
INTERFILUM Chodat Card image
INTERMURELLA G.F. Elliott Card image
INTERNORETIA W.A. Setchell & N.L. Gardner Card image
INTERTHAMNION Gordon Card image
INTEXTULELLA A.A. Petryk Card image
INTORTUM S. Kumano Text
INVERTOCYSTA L.E. Edwards Text
INVOLUCRANA R.N. Baldock & H.B.S. Womersley Card image
INZERIA Krylov Card image
IONIA L.P. Perestenko Text
IPHIANASSA M. Panou & S. Gkelis Text
IPHINOE V. Lamprinou & A. Pantazidou {invalid} Text
IRANELLA Gollestaneh ex Hosseini, Conrad & Kindler Text
IREKSOKONIA K. Meier Card image
IRIDAEA Card image
IRIDAEA Postels & Ruprecht Card image
IRIDEA Bory Card image
IRIDEA Stackhouse Card image
IRIDEAE Card image
IRIDOPHYCUS Setchell & Gardner Card image
IRIDOPHYCUS subgenera Card image
IRKUTIA G.V. Pomazkina, E.V. Rodionova & T.A. Sherbakova Text
IRTUGOVIA L.P. Perestenko Text
IRVINEA M.D. Guiry Text
ISABBOTTIA M.S. Balakrishnan Text
ISABOTTIA M.S. Balakrishnan Card image
ISACTIS (Thuret) Thuret Card image
ISACTIS Thuret Card image
ISACTIS Thuret ex Bornet & Flahault Card image
ISCHADITES Murchison Text
ISCHADITES R.I. Murchison Card image
ISHIGE Yendo Card image
ISHIGEACEAE Okamura Card image
ISHIGEALES G.Y. Cho & S.M. Boo Text
ISHIGEOPHYCIDAE T. Silberfeld, F. Rousseau & B. Reviers Text
ISLANDINIUM M.J. Head, R. Harland, & J. Matthiessen Text
ISOCARPEAE Ardissone & Strafforello Card image
ISOCARPEAE Kützing Text
ISOCHROUS Kjellman Card image
ISOCHRYSIDACEAE Pascher Card image
ISOCHRYSIDAE Calkins Card image
ISOCHRYSIDAE Hollande Card image
ISOCHRYSIDALES Pascher Card image
ISOCHRYSIDEAE Fritsch Card image
ISOCHRYSIDEAE Huber-Pestalozzi Card image
ISOCHRYSIDEAE Pascher Card image
ISOCHRYSIDIDAE Reichenow Text
ISOCHRYSIDINAE Hollande Card image
ISOCHRYSIDINEAE Huber-Pestalozzi Card image
ISOCHRYSIDINEAE Pascher Card image
ISOCHRYSINAE Calkins Card image
ISOCHRYSIS M. Parke Card image
ISOCHRYSOPHYCIDAE Bourrelly Card image
ISOCHRYSOPHYCIDEAE Bourrelly Card image
ISOCOCCACEAE Fritsch Card image
ISOCOCCUS F.E. Fritsch Card image
ISOCRYSTALLITHUS J.W. Verbeek Card image
ISOCYSTACEAE Elenkin Card image
ISOCYSTEAE Borzì Card image
Card image
ISOCYSTIDAE Kirchner Card image
ISOCYSTIS Borzì Card image
ISOCYSTIS Borzì ex Bornet & Flahault Text
ISODISCACEAE P.A. Sims Text
ISODISCUS (Rattray) Schütt Card image
ISODISCUS Rattray Card image
ISOGENERATAE Kylin Card image
ISOGONIA J. Agardh Card image
ISOGONICAE Kjellman Card image
ISOGONIUM (Kützing) de Bary Card image
ISOGONIUM Kützing Card image
ISOKONTAE Blackman & Tansley Card image
ISOMASTIGODA Bütschli Card image
ISOMASTIGODA Haeckel Card image
ISOMENIA De la Pylaie Text
ISOMERIA Chevallier Card image
ISOMITA Diesing Card image
Card image
ISOMITA T. Cavalier-Smith Text
ISOMONADES Haeckel Card image
ISONEMA Schuster, Goldstein, & Hershenov Card image
ISOPHLIS Rafinesque Text
ISOPHYTA C. Jeffrey Text
ISOPTERA Okamura Card image
ISOSELMIS Butcher Card image
ISTHMIA C. Agardh Card image
ISTHMIEAE Cleve Card image
ISTHMIEAE Karsten Card image
ISTHMIELLA Cleve Card image
ISTHMIINAE Schütt Card image
ISTHMOCHLORON (Skuja) Bourrelly Card image
ISTHMOCHLORON Skuja Card image
ISTHMOCYSTIS S. Duxbury Text
ISTHMOLITHUS Deflandre Card image
ISTHMOPLEA Kjellman Card image
ISTHMOSIRA (Kützing) Hansgirg Card image
ISTHMOSIRA Kützing Card image
ISYMENIA (J. Agardh) J. Agardh Card image
ISYMENIA J. Agardh Card image
ITIERIA Saporta Card image
ITONOA M. Masuda & M.D. Guiry Text
ITTIACANTHE Donati Card image
IVANOVIA Khvorova Card image
IWANOFFIA Pascher Card image
Card image
IWANOFFIA Pascher mscr. Card image
IXIPAPILLIFERA T. Nakada Text
IYENGARIA Børgesen Card image
IYENGARIELLA Desikachary Card image
IYENGARIOMONAS Desikachary Card image
IZHELLA Antropov Card image
IZZIELLA Doty Card image
Ialomitzia cavernicola Gruia Card image
Ichnophycus tridactylus J. Hall Card image
Ichthyobodo necatrix (Henneguy) Pinto Card image
Ichthyocercus angolensis W. West & G.S. West Card image
Ichthyocercus angolensis var. longispinus Borge Text
Ichthyocercus australiensis Playfair Text
Ichthyocercus bourrellyi Tell Card image
Ichthyocercus cronbergii Bourrelly Card image
Ichthyocercus humbertii Bourrelly Card image
Ichthyocercus longispinus (Borge) Playfair Card image
Ichthyocercus longispinus var. amazonensis K. Förster Text
Ichthyocercus longispinus var. australiensis (Playfair) W. Krieger Text
Ichthyocercus manauensis C.E.M. Bicudo Text
Ichthyocercus sierra-leonensis Woodhead & Tweed Card image
Ichthyodinium chabelardii_('chabelardi') Hollande & J. Cachon Card image
Ichthyodontum sachlanii Scott & Prescott Card image
Ichthyodontum sachlanii var. parorthium Scott & Prescott Card image
Iconella aculeata (Hustedt) C. Cocquyt & R. Jahn Text
Iconella acuminata (Hustedt) C. Cocquyt & R. Jahn Text
Iconella africani-orientalis (C. Cocquyt & R. Jahn) C. Cocquyt & R. Jahn Text
Iconella agonaensis (Foged) C. Cocquyt & R. Jahn Text
Iconella alata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella anassae (Cholnoky) C. Cocquyt & R. Jahn Text
Iconella angusta (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella angusticostata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella angustiformis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella approximata (Woodhead & Tweed ex C. Cocquyt, I. Jüttner & W.-H. Kusber) C. Cocquyt, I. Jüttner & W.-H. Kusber Text
Iconella armata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella bifrons (Ehrenberg) E.C. Ruck & T. Nakov Text
Iconella bifrons (Ehrenberg) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella biseriata (Brébisson) E.C. Ruck & T. Nakov Text
Iconella biseriata (Brébisson) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella biseriata var. celebesiana (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella biseriata var. heteropolis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella biseriata var. robusta (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella bonsaensis (Foged) C. Cocquyt & R. Jahn Text
Iconella brevicostata (O. Müller) C. Cocquyt & R. Jahn Text
Iconella brevicostata var. constricta (Hustedt) C. Cocquyt & R. Jahn Text
Iconella brevicostata var. elongata (Hustedt ex Simonsen) C. Cocquyt & R. Jahn Text
Iconella capronii (Brébisson & Kitton) E.C. Ruck & T. Nakov Text
Iconella capronii (Brébisson & Kitton) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella cataractarum (C. Cocquyt & J.C. Taylor) C. Cocquyt & J.C. Taylor Text
Iconella celebesiana (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella celebesiana var. matanensis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella chasei (Cholnoky) C. Cocquyt & R. Jahn Text
Iconella chepurnovii (C. Cocquyt & R. Jahn) Cocquyt & R. Jahn Text
Iconella cincta (Jurilj) E.C. Ruck & T. Nakov Text
Iconella coei (Cholnoky ex C. Cocquyt, J.C. Taylor & Kusber) Cocquyt, J.C. Taylor & Kusber Text
Iconella congolensis (C. Cocquyt & J.C. Taylor) C. Cocquyt & J.C. Taylor Text
Iconella conversa (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella costata E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella crawfordii (C. Cocquyt & R. Jahn) Cocquyt & R. Jahn Text
Iconella curvula (W. Smith) E.C. Ruck & T. Nakov Text
Iconella curvula (W. Smith) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella cuspidata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella cuspidata var. giluwensis (W. Vyverman) D. Kapustin & M. Kulikovskiy Text
Iconella debesii (Hustedt) C. Cocquyt & R. Jahn Text
Iconella decipiens (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella delicatissima (F.W. Lewis) E.C. Ruck & T. Nakov Text
Iconella delicatissima (F.W. Lewis) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella delicatissima var. ghanaensis (Foged) C. Cocquyt & Kusber Text
Iconella dodowaensis (Foged) C. Cocquyt & R. Jahn Text
Iconella dumae (Hustedt) C. Cocquyt & R. Jahn Text
Iconella ebalensis (C. Cocquyt & J.C. Taylor) C. Cocquyt & J.C. Taylor Text
Iconella effusa (Hustedt) C. Cocquyt & R. Jahn Text
Iconella elegantula (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella elegantula f. cuneata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella engleri (O. Müller) C. Cocquyt & R. Jahn Text
Iconella ephippiomorpha (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella esamangensis (Foged) C. Cocquyt & R. Jahn Text
Iconella excellens (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella fenestrellata (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella feuerbornii (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella fimbriata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella fonticola (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella friedelhinziae (C. Cocquyt & R. Jahn) Cocquyt & R. Jahn Text
Iconella fuellebornii (O. Müller) C. Cocquyt & R. Jahn Text
Iconella glabra (Jurilj) E.C. Ruck & T. Nakov Text
Iconella glabra (Jurilj) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella gradifera (Hustedt) C. Cocquyt & R. Jahn Text
Iconella guatimalensis (Ehrenberg) E.C. Ruck & T. Nakov Text
Iconella guatimalensis (Ehrenberg) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella heidenii (Hustedt) C. Cocquyt & R. Jahn Text
Iconella helvetica (Brun) E.C. Ruck & T. Nakov Text
Iconella helvetica (Brun) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella hibernica (Ehrenberg) E.C. Ruck & T. Nakov Text
Iconella hibernica (Ehrenberg) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella horrida (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella horrida f. constricta (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella hustedtii D. Kapustin & M. Kulikovskiy Text
Iconella imbuta (Jurilj) E.C. Ruck & T. Nakov Text
Iconella imbuta (Jurilj) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella kerguelensis (Grunow) C. Cocquyt & B. Van de Vijver Text
Iconella kusberi (C. Cocquyt & R. Jahn) C. Cocquyt & R. Jahn Text
Iconella lancettula (Hustedt) C. Cocquyt & R. Jahn Text
Iconella lata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella latecostata (Hustedt) C. Cocquyt & R. Jahn Text
Iconella levanderi (Hustedt) E.C. Ruck & T. Nakov Text
Iconella levanderi (Hustedt) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella levis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella leyana (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella likomensis (C. Cocquyt & R. Jahn) Cocquyt & R. Jahn Text
Iconella linearis (W. Smith) E.C. Ruck & T. Nakov Text
Iconella linearis (W. Smith) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella linearis var. elliptica (O. Müller) C. Cocquyt & R. Jahn Text
Iconella linearis var. elongata (Compère) C. Cocquyt & R. Jahn Text
Iconella lineopunctata (Jurilj) E.C. Ruck & T. Nakov Text
Iconella lineopunctata (Jurilj) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella malombae (O. Müller) C. Cocquyt & R. Jahn Text
Iconella margaritacea (O. Müller) C. Cocquyt & R. Jahn Text
Iconella margaritifera C. Cocquyt & R. Jahn {illegitimate} Text
Iconella marginata E.C. Ruck & T. Nakov Text
Iconella marginata E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella muelleri (Forti) C. Cocquyt & R. Jahn Text
Iconella murielae (Compère) C. Cocquyt & R. Jahn Text
Iconella nagbogensis (Foged) C. Cocquyt & R. Jahn Text
Iconella nervosa (A.W.F. Schmidt) C. Cocquyt & R. Jahn Text
Iconella nyassae (O. Müller) C. Cocquyt & R. Jahn Text
Iconella obtusiuscula (G.S. West) C. Cocquyt & R. Jahn Text
Iconella oliffii (Cholnoky) C. Cocquyt & R. Jahn Text
Iconella panganiensis (O. Müller) C. Cocquyt & R. Jahn Text
Iconella papillifera (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pediculata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pelagica (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pinnigera (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella plana (G.S. West) C. Cocquyt & R. Jahn Text
Iconella promontorium (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella propinqua (Hustedt) C. Cocquyt & R. Jahn Text
Iconella proxima (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pseudoconstricta Yan Liu, Ziyi Jiang & J.P. Kociolek Text
Iconella pseudospiralis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pseudosplendida (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella pseudotenuissima (L. Leclercq) D. Kapustin & M. Kulikovskiy Text
Iconella pseudothienemannii (Cholnoky) C. Cocquyt & R. Jahn Text
Iconella pumila (H. Lange-Bertalot & Rumrich) E.C. Ruck & T. Nakov Text
Iconella pumila (H. Lange-Bertalot & Rumrich) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella quadridentis (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella rafaelii (J.J. Ramírez & S.E. Sala) S.E. Sala, J.M. Guerrero & M. Núñez Avellaneda Text
Iconella rectangulata E.C. Ruck & T. Nakov Text
Iconella rectangulata E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella reicheltii (Hustedt) C. Cocquyt & R. Jahn Text
Iconella robusta (Ehrenberg) E.C. Ruck & T. Nakov Text
Iconella robusta (Ehrenberg) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella rugosa (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella rumrichorum (D. Metzeltin & H. Lange-Bertalot) E.C. Ruck & T. Nakov Text
Iconella rumrichorum (Metzeltin & Lange-Bertalot) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella sanyatangum Y. Liu & J.P. Kociolek Text
Iconella shiwana Yan Liu, Ziyi Jiang & J.P. Kociolek Text
Iconella sorriensis (Foged) C. Cocquyt & R. Jahn Text
Iconella spinifera (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella spinosa (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella spiralis (Kützing) E.C. Ruck & T. Nakov Text
Iconella spiralis (Kützing) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella spiraloides (Hustedt) C. Cocquyt & R. Jahn Text
Iconella splendida (Ehrenberg) E.C. Ruck & T. Nakov Text
Iconella splendida (Ehrenberg) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella subcontorta (Hustedt) C. Cocquyt & R. Jahn Text
Iconella sublinearis (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella sublinearis var. suggesta (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella submargaritifera (C. Cocquyt & W.-H. Kusber) C. Cocquyt & R. Jahn Text
Iconella subturgida (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella sulawesiensis D. Kapustin & M. Kulikovskiy Text
Iconella sulcata (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella takoradiensis (Foged) C. Cocquyt & R. Jahn Text
Iconella tayronarum (M.F. Medina Tombé, S.E. Sala, A.A. Vouilloud & J.J. Ramírez Restrepo) M. Núñez Avellaneda Text
Iconella tchadensis (Compère) C. Cocquyt & R. Jahn Text
Iconella tenacis (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella tenera (W. Gregory) E.C. Ruck & T. Nakov Text
Iconella tenera (W. Gregory) E.C. Ruck, T. Nakov, A.J. Alverson, & E.C. Theriot {invalid} Text
Iconella tenuissima (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella thienemannii (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella tortilis (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella tubicola (A.J. Bramburger & P.B. Hamilton) D. Kapustin & M. Kulikovskiy Text
Iconella tumida (O. Müller) C. Cocquyt & R. Jahn Text
Iconella turbo (O. Müller) C. Cocquyt & R. Jahn Text
Iconella uniformis Yan Liu, Ziyi Jiang & J.P. Kociolek Text
Iconella variabilis Jurilj Card image
Iconella vasta (Hustedt) C. Cocquyt & R. Jahn Text
Iconella vasta var. linearis (Hustedt) C. Cocquyt & R. Jahn Text
Iconella ventricosa (Hustedt) D. Kapustin & M. Kulikovskiy Text
Iconella woltereckii (Hustedt) D. Kapustin & M. Kulikovskiy Text
Idionympha perissa L.R. Cleveland, Hall, E.P. Sanders & Collier Card image
Ignatius tetrasporus H.C. Bold & F.J. MacEntee Card image
Ikebea amphistriata Komura Card image
Ikebea amphistriata S. Komura Text
Ikebea bifurcata Komura Card image
Ikebea bifurcata S. Komura Text
Ikebea clavata Komura Card image
Ikebea clavata S. Komura Text
Ikebea coronata Komura Card image
Ikebea coronata S. Komura Text
Ikebea robusta Komura Card image
Ikebea robusta S. Komura Text
Ikebea tenuis (J. Brun) Akiba Card image
Ikebea tenuis (J. Brun) F. Akiba Text
Ilea bertolonii (C. Agardh) Meneghini Card image
Ilea bertolonii (C. Agardh) Zanardini Card image
Ilea bertolonii Meneghini ex Zanardini {illegitimate} Text
Ilea caespitosa (J. Agardh) Nordstedt Card image
Ilea clathrata (Roth) Gaillon Text
Ilea clathrata var. uncinata (Lyngbye) De Notaris Text
Ilea compressa (L.) Gaillon Card image
Ilea compressa (Linnaeus) Gaillon Text
Ilea compressa var. crinita Zanardini Text
Ilea fascia (O.F. Müller) E.M. Fries Card image
Ilea fascia (O.F. Müller) Fries Text
Ilea fascia f. caespitosa (J. Agardh) Setchell & Gardner Card image
Ilea fascia f. crispa (A.D. Zinova) A.D. Zinova Text
Ilea fascia f. debilis (Kützing) Setchell & Gardner Card image
Ilea fascia f. filiformis (Batters) Setchell & Gardner Card image
Ilea fascia f. pervulgata (A.D. Zinova) A.D. Zinova Text
Ilea fascia f. typica Kjellman Card image
Ilea fascia f. zosterifolia (Reinke) Setchell & Gardner Card image
Ilea fascia f. zosterifolia (Reinke) Setchell & N.L. Gardner Text
Ilea filiformis (Batters) Nordstedt Card image
Ilea fistulosa (Hudson) Gaillon Card image
Ilea foeniculacea (Hudson) Fries Text
Ilea fulvescens (C. Agardh) J. Agardh Text
Ilea fulvescens (C.A. Agardh) J.G. Agardh Card image
Ilea intestinalis (L.) Leiblein Card image
Ilea intestinalis (Linnaeus) Leiblein Text
Ilea tenuissima (J. Agardh) Nordstedt Card image
Ilea torta (Mertens) Trevisan Text
Ilea zostericola Noda Card image
Card image
Ilea zosterifolia (Reinke) Nordstedt Text
Ilea zosterifolia f. filiformis A.D. Zinova Text
Ilea zosterifolia f. lata A.D. Zinova Text
Ilselithina fusa P.H. Roth Card image
Ilselithina iris H. Stradner Text
Ilsteria eradians Pascher Card image
Ilsteria lobata Pascher Card image
Ilsteria pseudotetracoccus I. Kostikov Text
Ilsteria quadrijuncta Skuja Card image
Card image
Ilsteria tetracoccus Pascher Card image
Imantonia rotunda N. Reynolds Text
Imbatodinium antennatum Gitmez & Sarjeant Card image
Imbatodinium exiguum (Alberti) Dörhöfer & E. Davies Text
Imbatodinium fractum N.C. Mehrotra & W.A.S. Sarjeant Text
Imbatodinium gochtii (Alberti) Dörhöfer & E. Davies Text
Imbatodinium imbatodinensis T.F. Vozzhennikova Card image
Imbatodinium jaegeri (Alberti) Dörhöfer & E. Davies Text
Imbatodinium kondratjevi Vozzhennikova Card image
Imbatodinium longicornutum (Alberti) Dörhöfer & E. Davies Text
Imbatodinium micropodum (Eisenack & Cookson) Dörhöfer & E. Davies Text
Imbatodinium pelliferum (Alberti) Dörhöfer & E. Davies Text
Imbatodinium pomum (R.J. Davey) N.C. Mehrotra & W.A.S. Sarjeant Text
Imbatodinium radiculatum (R.J. Davey) N.C. Mehrotra & W.A.S. Sarjeant Text
Imbatodinium verrucosum Vozzhennikova Text
Imbatodinium villosum Vozzhennikova Card image
Impagidinium alectrolophum (Sarjeant) Stover & Evitt Card image
Impagidinium aspinatum (Cookson & Eisenack) S.P. Damassa Text
Impagidinium brevisulcatum Michoux Text
Impagidinium californiense S.P. Damassa Text
Impagidinium dispertitum (Cookson & Eisenack) Stover & Evitt Card image
Impagidinium elegans (Cookson & Eisenack) Stover & Evitt Card image
Impagidinium fenestroseptatum M.J. Head, G. Norris, & P.J. Mudie Text
Impagidinium gracilium C.-L. Shaw Text
Impagidinium maculatum (Cookson & Eisenack) Stover & Evitt Card image
Impagidinium pacificum J.P. Bujak Text
Impagidinium pallidum J.P. Bujak Text
Impagidinium paradoxum (Wall) Stover & Evitt Card image
Impagidinium patulum (Wall) Stover & Evitt Card image
Impagidinium pengchiahsum C.-L. Shaw Text
Impagidinium pentahedrias S.P. Damassa Text
Impagidinium simplicium (Cookson & Eisenack) Stover & Evitt Card image
Impagidinium strialatum (Wall) Stover & Evitt Card image
Impagidinium striatum (Clarke & Verdier) Stover & Evitt Card image
Impagidinium taiwanianum C.-L. Shaw Text
Impagidinium variaseptum F. Marret & A. de Vernal Text
Impagidinium velorum J.P. Bujak Text
Impagidinium victorianum (Cookson & Eisenack) Stover & Evitt Card image
Impagidinium waipawaense G.J. Wilson Text
Impagidinium whitei (Sarjeant) Stover & Evitt Card image
Imparvalvia laevigata S. Komura Text
Imperiaster obscurus (Martini) Martini Card image
Imperiella iranica G.F. Elliott & Süssli 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 petalum M.A. Islam Text
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 reticulata Heydrich Card image
Impluviculus campidanus P. Pittau Text
Impluviculus milonii (Deunff) A.R. Loeblich, Jr. & H. Tappan Card image
Inacoccus carmineus W.A. Gama, J. Rigonato, M.F. Fiore & C.L. Sant'Anna Text
Inactis austinii Wolle Card image
Inactis austinii_('austini') Wolle ex Forti 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 ecalcarea N.L. Gardner Text
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 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 kuetzingii_('kützingii') Rabenhorst Card image
Inactis lacustris (A. Braun ex Gomont) Migula Text
Inactis lacustris (A. Braun) Hansgirg Card image
Inactis lacustris (Braun ex Gomont) Forti Card image
Inactis lacustris var. caespitosa (Gomont) Forti Card image
Inactis mexicana (Gomont) Forti Text
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 Text
Inactis pulvinata (Gomont) Kirchner Card image
Inactis pulvinata (Kützing) Kützing Card image
Inactis rivularioides Forti Card image
Inactis rubella (Gomont) Forti Card image
Inactis rubella (Gomont) Migula Text
Inactis sauteriana Grunow ex Forti Text
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 simmonsiae (F.S. Collins) Forti Text
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
Incendia basilii K.R. Dixon Text
Incendia crenata K.R. Dixon Text
Incendia cryptica K.R. Dixon Text
Incendia cryptotricha K.R. Dixon Text
Incendia glabra K.R. Dixon Text
Incendia homosorora K.R. Dixon Text
Incendia lisianskiensis A.R. Sherwood Text
Incendia regularis K.R. Dixon Text
Incendia undulata K.R. Dixon Text
Incendia yoneshigueana E.M.S. Pestana, G.N. Santos, V. Cassano & J.M.C. Nunes Text
Incisoria inordinata Hajós Card image
Incisoria lanceolata Hajós & Stradner Card image
Incisoria palaeocaenica var. fuscina (Shibkova) D.M. Harwood Text
Incisoria punctata Hajós & Stradner Card image
Inderites spinireticulatus Abramova & Martchenko Text
Indiconema cataractarum B. Karthick & J.P. Kociolek Text
Indiconema difforme (B. Karthick & J.P. Kociolek) B. Karthick & J.P. Kociolek Text
Indodinium khariense_('khariensis') A. Kumar Text
Indopolia feddeni Has & Vimal Card image
Indopolia satyavantii_('satyavanti') Pia Card image
Indosphaera bhujensis A. Kumar Text
Indumenthalithus tetracellus-eleganticus_('tetracellus eleganticus') (Shamrai & Lazareva) Vekshina Card image
Ineffigiata neglecta W. West & G.S. West Text
Ingenhouzella flacca (Dillwyn) Gaillon Card image
Ingenhouzella flacca (Dillwyn) Gaillon {invalid} Text
Ingenhouzella fugacissima (Roth) Gaillon Card image
Ingenhouzella fugacissima (Roth) Gaillon {invalid} Text
Ingenhouzella priestleyi Gaillon {invalid} Text
Ingenhouzella zonata (F. Weber & Mohr) Gaillon {invalid} Text
Ingenhouzella zonata (Weber & Mohr) Gaillon Card image
Iningainema pulvinus G.B. McGregor & B.C. Sendall Text
Iningainema sahyadrense_('sahyadrensis') Y. Maltsev & M. Kulikovskiy Text
Iningainema tapete D.E. Berthold & H.D. Laughinghouse Text
Inkyuleea ballioides (Sonder) H.-G. Choi, G.T. Kraft, & G.W. Saunders Text
Inkyuleea beckeri (Schmitz ex Mazza) H.-G. Choi, G.T. Kraft, & G.W. Saunders Text
Inkyuleea mariana (Harvey) H.-G. Choi, G.T. Kraft, & G.W. Saunders Text
Inocaulis anastomotica Ringueberg Card image
Inocaulis arbuscula S.A. Miller Card image
Inocaulis kirkii_('kirki') Ruedemann Card image
Inochorion cervicorne Kützing Card image
Inochorion dichotomum Kützing Card image
Inochorion multifidum Meneghini Card image
Inoconia michelii Libert Card image
Inoconia michelii_('micheli') Libert Card image
Inoderma fontanum Kützing Card image
Inoderma lamellosum Kützing Card image
Card image
Inoderma lamellosum var. fontanum (Kützing) Rabenhorst Card image
Inoderma majus Hansgirg 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 lawsonii G.F. Elliott 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
Insularia amadoi V.L. Araújo, A.S. Schnadelbach, J.M.C. Nunes & T.A. Caires Text
Interfilum massjukiae T. Mikhailyuk, H. Sluiman, A. Massalski, O. Mudimu, E. Demchenko, T. Friedl & S.Y. Kondratyuk Text
Interfilum paradoxum Chodat & Topali Card image
Interfilum paradoxum var. regulare C. Eherenhaus & M.S. Vigna Text
Interfilum paradoxum var. reticulatum Fritsch & John Card image
Interfilum terricola (B. Petersen) T. Mikhailyuk, H. Sluiman, A. Massalski, O. Mudimu, E. Demchenko, T. Friedl & S.Y. Kondratyuk Text
Intermurella scotica G.F. Elliott Card image
Internoretia fryeana Setchell & N.L. Gardner Text
Internoretia fryeana W.A. Setchell & N.L. Gardner Card image
Interpositus sertiformis E.I. Gorgulevskaya Card image
Interthamnion attenuatum Gordon Card image
Intextulella agglomerata Petryk Card image
Invertocysta lacrymosa L.E. Edwards Text
Invertocysta tabulata L.E. Edwards Text
Involucrana crassa (Hooker & Harvey) Gordon Card image
Involucrana crassa (J. Hooker & Harvey) E. Gordon Text
Involucrana meredithiana (J. Agardh) Baldock & Womersley Card image
Inzeria conjuncta Preiss Card image
Inzeria multiplex Preiss Card image
Ionia cornu-cervi L.P. Perestenko Text
Iphianassa zackieohae M. Panou & S. Gkelis Text
Iphinoe spelaeobios V. Lamprinou & A. Pantazidou {invalid} Text
Iranella inopinata (Gollestaneh ex Hosseini & Conrad) Gollestaneh ex Hosseini, Conrad & Kindler Text
Ireksokonia formosa K. Meier Card image
Iridaea (Bory) Kim Card image
Iridaea affinis Postels & Ruprecht Card image
Iridaea agardhiana (Setchell & Gardner) Kylin Text
Iridaea agathoicus Delf & Michell Card image
Iridaea arabica Montagne mss. Card image
Iridaea atropurpurea J. Agardh Text
Iridaea augustinae Bory Card image
Iridaea augustinae Bory {illegitimate} Text
Iridaea australasica J. Agardh Card image
Iridaea belangeri Bory Text
Iridaea berteroana Montagne Card image
Iridaea binderi J. Agardh ex Kützing Text
Iridaea boryana (Setchell & Gardner) Skottsberg Card image
Iridaea caespitipes (Setchell & Gardner) Skottsberg Card image
Iridaea caespitipes (Setchell & N.L. Gardner) Skottsberg Text
Iridaea californica (J. Agardh) Kylin Text
Iridaea capensis J. Agardh Text
Iridaea capensis var. elongata Grun. Card image
Iridaea capensis var. elongata Grunow Text
Iridaea carnosa (J. Agardh) Kützing Text
Iridaea carnosa J. Agardh ex Kützing Card image
Iridaea ciliata Kützing Text
Iridaea clathrata Decaisne Card image
Iridaea clavellosa Suhr Text
Iridaea convoluta (J.E. Areschoug ex J. Agardh) Hewitt Card image
Iridaea cordata (Turn.) Bory Card image
Iridaea cordata (Turner) Bory Text
Iridaea cordata f. ligulata Reinsch Text
Iridaea cordata var. dichotoma Hooker f. & Harvey Card image
Iridaea cordata var. elongata Suhr apparently mscr. Card image
Iridaea cordata var. splendens (Setchell & Gardner) Abbott Card image
Iridaea cordata var. splendens (Setchell & N.L. Gardner) I.A. Abbott Text
Iridaea coriacea (Setchell & Gardner) Scagel Card image
Iridaea coriacea (Setchell & N.L. Gardner) Scagel Text
Iridaea cornea Kützing Text
Iridaea cornucopiae Postels & Ruprecht Text
Iridaea cornucopiae subsp. japonica (Yamada & Mikami) Perestenko Card image
Iridaea cornucopiae subsp. yendoi (Yamada & Mikami) Perestenko Card image
Iridaea cornucopiae var. papillata Postels & Ruprecht Text
Iridaea crispata Bory de Saint-Vincent Text
Iridaea curvata Kützing Card image
Iridaea cutleriae Montagne Text
Iridaea decipiens J. Hooker & Harvey Text
Iridaea decipiens J.D. Hooker & Harvey Card image
Iridaea dentata Kützing Card image
Iridaea dentata var. minor Kützing Card image
Iridaea dichotoma (J. Agardh) Endlicher Text
Iridaea dichotoma J. Hooker & Harvey {illeg.} Text
Iridaea divisa Kützing Card image
Iridaea dubyi (Chauvin ex Duby) Montagne Text
Iridaea dubyi (Chauvin) Montagne Card image
Iridaea dubyi Lenormand 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 Text
Iridaea fissa Suhr Text
Iridaea flaccida (Setchell & Gardner) P.C. Silva Card image
Iridaea flaccida (Setchell & N.L. Gardner) P.C. Silva Text
Iridaea foliifera Harvey Text
Iridaea foliosa Meneghini Text
Iridaea fulgens (Setchell & Gardner) Papenfuss Card image
Iridaea fulgens (Setchell & N.L. Gardner) Papenfuss Text
Iridaea furcata (Setchell & Gardner) Papenfuss Card image
Iridaea furcata (Setchell & N.L. Gardner) Papenfuss Text
Iridaea gigantea J. Agardh Card image
Iridaea gigantea Kützing Card image
Iridaea harveyi De Toni Card image
Iridaea heterocarpa Postels & Ruprecht Text
Iridaea heterococca Kützing Card image
Iridaea hilliana Greville Card image
Iridaea insignis Endlicher & Diesing Text
Iridaea irregularis Kützing Text
Iridaea labyrinthifolia Kützing Card image
Iridaea lacera Postels & Ruprecht Text
Iridaea laminarioides Bory de Saint-Vincent Text
Iridaea laminarioides f. cordata (Turner) Setchell & Gardner Card image
Iridaea laminarioides f. cordata (Turner) Setchell & N.L. Gardner Text
Iridaea laminarioides f. minor Setchell Text
Iridaea laminarioides f. parvula Kjellman Text
Iridaea laminarioides f. punicea (Postels & Ruprecht) Setchell & Gardner Card image
Iridaea laminarioides f. punicea (Postels & Ruprecht) Setchell & N.L. Gardner Text
Iridaea laminarioides f. typica Setchell Card image
Iridaea laminarioides var. cornucopiae (Postels & Ruprecht) J. Agardh Text
Iridaea laminarioides var. laciniata Grun. Card image
Iridaea lanceolata Harvey Card image
Iridaea lanceolata Harvey mss. Card image
Iridaea lanceolata Harvey {invalid} Text
Iridaea lapathifolia Kützing Text
Iridaea latissima (Hooker & Harvey) Grunow Card image
Iridaea lilacina Postels & Ruprecht Text
Iridaea linearis (Setchell & Gardner) Kylin Card image
Iridaea linearis (Setchell & N.L. Gardner) Kylin Text
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 Text
Iridaea mawsonii_('mawsoni') Lucas Card image
Card image
Iridaea membranacea J. Agardh Text
Iridaea mertensiana Postels & Ruprecht Text
Iridaea micans Bory Card image
Card image
Iridaea micans var. augustinae (Bory) Hariot Card image
Iridaea micans var. ciliolata Hook. f. & Harvey Card image
Iridaea micans var. obovata (Kützing) Kützing Text
Iridaea micrococca Kützing Text
Iridaea microphylla 'Harvey' Card image
Iridaea minor (J. Agardh) Endlicher Card image
Iridaea minor J. Agardh {illegitimate} Text
Iridaea montagnei Bory Text
Iridaea oblongifructa Setchell Text
Iridaea obovata Kützing Text
Iridaea obtusiloba E.S. Sinova Card image
Iridaea orbitosa Suhr Text
Iridaea oregona (Doty) Papenfuss Card image
Iridaea oregona (M.S. Doty) Papenfuss Text
Iridaea ornata Postels & Ruprecht Card image
Iridaea papillata (Agardh) Greville Card image
Iridaea papillata (C. Agardh) Greville Text
Iridaea papillosa Bory Card image
Iridaea papillosa Bory de Saint-Vincent Text
Iridaea pappeana Kützing Card image
Iridaea pappeana Sonder mscr. Card image
Iridaea parksii (Setchell & Gardner) Papenfuss Card image
Iridaea parksii (Setchell & N.L. Gardner) Papenfuss Text
Iridaea parvula (Kjellman) Papenfuss Text
Iridaea phyllocarpa Postels & Ruprecht Text
Iridaea pinnata Postels & Ruprecht Text
Iridaea platyna (Agardh) Kützing Card image
Iridaea platyna (Agardh) Postels & Ruprecht Card image
Iridaea platyna (C. Agardh) Postels & Ruprecht Text
Iridaea polycarpa Harvey Text
Iridaea prolifera (J. Agardh) De Toni Card image
Iridaea proliferans Skottsberg Card image
Iridaea pulchra Kützing Card image
Card image
Iridaea punicea Postels & Ruprecht Text
Iridaea purpurea (J. Agardh) De Toni Card image
Iridaea pustulosa Postels & Ruprecht Text
Iridaea radula (Esper) Bory Text
Iridaea reediae (Setchell & Gardner) Papenfuss Card image
Iridaea reediae (Setchell & N.L. Gardner) Papenfuss Text
Iridaea remuliformis Ricker Text
Iridaea reniformis (Turn.) Greville Card image
Iridaea reticulata Montagne Card image
Iridaea rosea Kylin Text
Iridaea ruprechtiana E.S. Sinova Text
Iridaea ruprechtiana f. angustifolia E.S. Sinova Card image
Iridaea sanguinea (Setchell & Gardner) Hollenberg & Abbott Card image
Iridaea sanguinea (Setchell & N.L. Gardner) G.J. Hollenberg & I.A. Abbott Text
Iridaea serratifolia 'J. Agardh' Card image
Iridaea sinicola (Setchell & Gardner) Papenfuss Card image
Iridaea sinicola (Setchell & N.L. Gardner) Papenfuss Text
Iridaea socialis Postels & Ruprecht Text
Iridaea splendens (Setchell & Gardner) Papenfuss Card image
Iridaea splendens (Setchell & N.L. Gardner) Papenfuss Text
Iridaea stiriata (Turner) J.D. Hooker & Harvey Card image
Iridaea tagana Welwitsch Card image
Iridaea tuberculosa (J. Hooker & Harvey) G.L. Leister Text
Iridaea tuberculosa (J.D. Hooker & Harvey) G.L. Leister Card image
Iridaea undulata 'J. Agardh' Card image
Iridaea undulosa Bory Text
Iridaea undulosa var. papillosa Bory Card image
Iridaea violacea Kützing Card image
Iridaea violacea var. prolifera Kützing Card image
Iridaea volans (Agardh) Greville Card image
Iridaea volans (C. Agardh) Greville Text
Iridaea whidbeyana (Setchell & Gardner) Scagel Card image
Iridaea whidbeyana (Setchell & N.L. Gardner) Scagel Text
Iridaea yemensis Montagne Card image
Iridea fluitans Stackhouse Card image
Iridophycus agardhianus_('Agardhianum') Setchell & Gardner Text
Iridophycus agardhianus_('agardhianum') Setchell & Gardner Card image
Iridophycus boryanus_('boryanum') Setchell & Gardner Card image
Iridophycus caespitipes Setchell & Gardner Card image
Iridophycus caespitipes Setchell & N.L. Gardner Text
Iridophycus californicus (J. Agardh) E.Y. Dawson Text
Iridophycus californicus_('californicum') (J. Agardh) Dawson Card image
Iridophycus capensis (J. Agardh) Setchell & Gardner Card image
Iridophycus capensis (J. Agardh) Setchell & N.L. Gardner Text
Iridophycus ciliatus (Kützing) Setchell & N.L. Gardner Text
Iridophycus ciliatus_('ciliatum') (Kützing) Setchell & Gardner Card image
Iridophycus cordatus_('cordatum') (Turner) Setchell & Gardner Card image
Iridophycus cordatus_('cordatum') (Turner) Setchell & N.L. Gardner Text
Iridophycus coriaceus_('coriaceum') Setchell & Gardner Card image
Iridophycus coriaceus_('coriaceum') Setchell & N.L. Gardner Text
Iridophycus cornucopiae (Postels & Ruprecht) Setchell & Gardner Card image
Iridophycus crispatus_('crispatum') (Bory) Setchell & Gardner Card image
Iridophycus dichotomus_('dichotomum') Setchell & N.L. Gardner Text
Iridophycus flaccidus_('flaccidum') Setchell & Gardner Card image
Iridophycus flaccidus_('flaccidum') Setchell & N.L. Gardner Text
Iridophycus fulgens Setchell & Gardner Card image
Iridophycus fulgens Setchell & N.L. Gardner Text
Iridophycus furcatus_('furcatum') Setchell & N.L. Gardner Text
Iridophycus heterocarpus (Postels & Ruprecht) Setchell & N.L. Gardner Text
Iridophycus heterocarpus_('heterocarpum') (Postels & Ruprecht) Setchell & Gardner Card image
Card image
Iridophycus laminarioides (Bory) Setchell & Gardner Card image
Iridophycus linearis_('lineare') Setchell & Gardner Card image
Iridophycus linearis_('lineare') Setchell & N.L. Gardner Text
Iridophycus membranaceus_('membranaceum') (J. Agardh) Setchell & Gardner Card image
Iridophycus micans (Bory) Setchell & Gardner Card image
Iridophycus micrococcus_('micrococcum') (Kützing) Setchell & Gardner Card image
Iridophycus micrococcus_('micrococcum') (Kützing) Setchell & N.L. Gardner Text
Iridophycus obovatus_('obovatum') (Kützing) Setchell & Gardner Card image
Iridophycus obovatus_('obovatum') (Kützing) Setchell & N.L. Gardner Text
Iridophycus oregonus_('oregonum') Doty Card image
Iridophycus oregonus_('oregonum') M.S. Doty Text
Iridophycus parksii Setchell & Gardner Card image
Iridophycus parksii Setchell & N.L. Gardner Text
Iridophycus parvulus_('parvulum') (Kjellman) Setchell & Gardner Card image
Iridophycus reediae Setchell & Gardner Card image
Iridophycus reediae Setchell & N.L. Gardner Text
Iridophycus sanguineus_('sanguineum') Setchell & Gardner Card image
Iridophycus sanguineus_('sanguineum') Setchell & N.L. Gardner Text
Iridophycus sinicola Setchell & Gardner Card image
Iridophycus sinicola Setchell & N.L. Gardner Text
Iridophycus splendens Setchell & Gardner Card image
Iridophycus splendens Setchell & N.L. Gardner Text
Iridophycus subdichotomus_('subdichotomum') Nagai Card image
Iridophycus undulosus_('undulosum') (Bory) Setchell & Gardner Card image
Iridophycus whidbeyanus_('whidbeyanum') Setchell & Gardner Card image
Iridophycus whidbeyanus_('whidbeyanum') Setchell & N.L. Gardner Text
Irkutia baicalensis G.V. Pomazkina, E.V. Rodionova & T.A. Sherbakova Text
Irkutia dispersepunctata (A.P. Skabichevskij) G.V. Pomazkina & E.V. Rodionova Text
Irkutia memorabilis E.V. Rodionova & G.V. Pomazkina Text
Irtugovia pacifica (Harvey) L.P. Perestenko Text
Irtugovia shimamurana (M. Nagai) L.P. Perestenko Text
Irtugovia spirographidis (Schiffner) L.P. Perestenko Text
Irvinea ardreana (J. Brodie & M.D. Guiry) M.D. Guiry Text
Irvinea boergesenii (J. Feldmann) R.J. Wilkes, L.M. McIvor, & M.D. Guiry Text
Irvinea chiajeana (Meneghini) Cormaci, Alongi & G. Furnari Text
Irvinea hancockii (E.Y. Dawson) R.J. Wilkes, L.M. McIvor, & M.D. Guiry Text
Isabbottia ovalifolia (Kylin) M.S. Balakrishnan Text
Isabelidinium acuminatum_('acuminata') (Cookson & Eisenack) Stover & Evitt Card image
Isabelidinium balmei (Cookson & Eisenack) Stover & Evitt Card image
Isabelidinium cretaceum subsp. gravidum S. Mao & B.A.R. Mohr Text
Isabelidinium cretaceum subsp. oviforme S. Mao & B.A.R. Mohr Text
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 Text
Isabottia ovalifolia (Kylin) M.S. Balakrishnan Card image
Isactis caespitosa (Kützing) Wolle Card image
Isactis caespitosa Wolle Text
Isactis caespitosa f. tenuior-viridis Rabenhorst ex Wolle Text
Isactis caespitosa f. tenuior-viridis_('tenuior viridis') Rabenhorst Card image
Isactis centrifuga Bornet Card image
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Isactis fluviatilis (Kützing) Kirchner Card image
Isactis fluviatilis Wolle Text
Isactis nipponica Hirose Text
Isactis plana (Harvey) Thuret Card image
Isactis plana Thuret ex Bornet & Flahault Text
Isactis plana f. fissurata (Crouan) Batters 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 abbottiae_('abbottae') Nitecki Text
Ischadites koenigii Murchison Text
Ischadites planoconvexus M.H. Nitecki Text
Ischadites prismaticus M.H. Nitecki Text
Ishige foliacea Okamura Text
Ishige foliacea Okamura mscr. Card image
Ishige okamurae_('okamurai') Yendo Card image
Ishige okamurae_(`okamurai') Yendo Text
Ishige sinicola (Setchell & Gardner) Chihara Card image
Ishige sinicola (Setchell & N.L. Gardner) Chihara Text
Islandinium brevispinosum V. Pospelova & M.J. Head Text
Islandinium cezare (de Vernal) M.J. Head, R. Harland & J. Matthiessen Text
Islandinium minutum (R. Harland & Reid) M.J. Head, R. Harland, & J. Matthiessen Text
Islandinium minutum subsp. barbatum É. Potvin, S.Y. Kim, E.J. Yang & M.J. Head Text
Islandinium tricingulatum (H. Kawami, R. van Wezel, R. Koeman, & K. Matsuoka) E. Potvin, A. Rochon & C. Lovejoy Text
Isochrysis galbana M. Parke Card image
Isochrysis litoralis Billard & Gayral Card image
Isochrysis maritima Billard & Gayral Card image
Isochrysis nuda E.M. Bendif & I. Probert Text
Isochrysis zhanjiangensis H.-J. Hu & H.-R. Liu Text
Isococcus sphagnicola_('sphagnicolus') Fritsch Card image
Isocystis andalusica_('andalusicus') González Guerrero Card image
Isocystis halobia K. Anagnostidis & M. Roussomoustakaki Text
Isocystis infusionum (Kützing) Borzě Card image
Isocystis infusionum Borzě ex Bornet & Flahault Card image
Isocystis lithophila Ercegovic Card image
Isocystis major Weber-van Bosse Card image
Isocystis messanensis Borzì Card image
Isocystis messanensis Borzì ex Bornet & Flahault Text
Isocystis minutissima_('minutissimum') (Kützing ex Bornet & Flahault) J. Komárek & K. Anagnostidis Text
Isocystis minutissima_('minutissimum') (Kützing) J. Komárek & K. Anagnostidis Card image
Isocystis moniliformis Borzì Card image
Isocystis moniliformis Borzì ex Bornet & Flahault Card image
Isocystis planctonica Starmach Card image
Isocystis richteri (Elenkin) J. Komárek & K. Anagnostidis Text
Isocystis salina Ivanow Text
Isocystis salinum Ivanov Text
Isocystis spermosiroides Borzì Card image
Isocystis spermosiroides Borzì ex Bornet & Flahault Card image
Isodiscus coronalis J. Brun Card image
Isodiscus coronatus "Brun" Card image
Isodiscus debyi (Grove & Sturt) Rattray Card image
Isodiscus mirificus Rattray Card image
Isodiscus watanabei P.A. Sims Text
Isogonium capillare Kützing Card image
Isomenia palmata (L.) De la Pylaie Card image
Isomenia palmata (Linnaeus) De la Pylaie {invalid} Text
Isomeria lyngbyei Chevallier Card image
Isomita angusta (Dujardin) Diesing Card image
Isomita dunalii (Joly) Diesing Card image
Isonema brasilianum_('brasiliana') (Skvortzov) C.E.M. Bicudo Text
Isonema nigricans Schuster, Goldstein, & Hershenov Card image
Isonema vacuolaria (Skvortzov) C.E.M. Bicudo Text
Isophlis concentrica_('concentricus') Rafinesque Card image
Isophlis concentrica_(`concentricus') Rafinesque Text
Isoptera regularis Okamura Card image
Isoselmis obconica Butcher Card image
Issinella grandis Tchuvashov Card image
Issinella sainsii Mamet & Roux Card image
Isthmia africana Ehrenberg Card image
Isthmia capensis Grunow Card image
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Isthmia catenata Meneghini Card image
Isthmia domuslaterariae Reinhold Card image
Isthmia enervis Ehrenberg Card image
Isthmia enervis f. intermedia Grunow Card image
Isthmia enervis var. capensis Grunow Card image
Isthmia enervis var. georgica Reinsch Text
Isthmia enervis var. gracilis Ehrenberg Card image
Isthmia enervis var. japonica Castracane Card image
Isthmia enervis var. schmidtii Heiden Card image
Isthmia enervis var. subcylindrica Ralfs Card image
Isthmia filiformis (Ehrenberg) Meneghini Card image
Isthmia fortii Forti & Schulz Card image
Isthmia japonica (Castracane) Sournia Card image
Isthmia lindigiana Grunow & Eulenstein Card image
Isthmia membranacea Cleve Card image
Isthmia minima Harvey & Bailey Text
Isthmia nankoorensis Grunow Card image
Isthmia nervosa Kützing Text
Isthmia nervosa var. nankoorensis Grunow Card image
Isthmia obliquata (J.E. Smith) C. Agardh Card image
Isthmia obliquata var. tenuior C. Agardh Card image
Isthmia polymorpha Montagne Text
Isthmia polymorpha Montagne ms. Card image
Isthmia reticularis J. Brun Card image
Isthmia sardoa V. Zanon Text
Isthmia squinaboli (Forti) Forti Card image
Isthmia squinaboli var. crassior Forti Card image
Isthmia squinabolii var. crassior Forti Card image
Isthmia squinabolii_('Squinaboli') (Forti) Forti Text
Isthmia stomatophora (Turpin) Meneghini Card image
Isthmia szaboi_('szabói') Pantocsek Card image
Isthmia tenuicornis Grunow Card image
Isthmia vertebrata (Brébisson) Meneghini Card image
Isthmia vesiculosa (C. Agardh) C. Agardh Card image
Isthmia vitrea Kitton Card image
Isthmiella enervis (Ehrenberg) Cleve 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
Isthmochloron variabile_('variabilis') S. Mac Carthy Text
Isthmocystis distincta S. Duxbury Text
Isthmolithus claviformis Brönnimann & Stradner Card image
Isthmolithus recurvus Deflandre Card image
Isthmolithus triplus Levin & Joerger Card image
Isthmolithus unipons Bramlette & Sullivan Card image
Isthmoplea rupincola Foslie Card image
Isthmoplea sphaerophora (Carmichael) Gobi Card image
Isthmosira excavata (Ralfs) Kützing Card image
Isthmosira filiformis (Ehrenberg) Kützing Card image
Isthmosira vertebrata (Brebisson) Kützing Card image
Isymenia angusta J. Agardh Card image
Isymenia decipiens (J. Agardh) J. Agardh Text
Isymenia elongata (C. Agardh) J. Agardh Text
Isymenia flabellata J. Agardh Text
Isymenia trigona (Clemente) J. Agardh Text
Isymenia trigona (J. Agardh) J. Agardh Card image
Itonoa marginifera (J. Agardh) M. Masuda & M.D. Guiry Text
Ivanovia tenuissima Khvorova Card image
Iwanoffia terrestris (Ivanov) Pascher Card image
Ixipapillifera deasonii (H. Ettl) T. Nakada Text
Ixipapillifera pauromitos T. Nakada Text
Ixipapillifera sacculiformis (Korshikov) T. Nakada Text
Iyengaria nizamuddinii A. Abbas & M. Shameel Text
Iyengaria quadriseriata J.A. West, G.C. Zuccarello, E.K. Ganesan & S. Loiseaux-de Goër Text
Iyengaria stellata (Børgesen) Børgesen Text
Iyengariella endolithica J.-S. Seeler & S. Golubic Text
Iyengariella endolithica J.S. Seeler & S. Golubic Card image
Iyengariella tirupatiensis Desikachary Card image
Iyengariomonas loligo (Conrad) Desikachary Card image
Izhella nubiformis Antropov Card image
Izziella abbottiae_('abbottae') Doty Card image
Izziella formosana (Yamada) S.-M. Lin, S.-Y. Yang & J.M. Huisman Text
Izziella hommersandii S.-M. Lin, S.-Y. Yang & J.M. Huisman Text
Izziella kuroshioensis S.-M. Lin, S.-Y. Yang & J.M. Huisman Text
Izziella orientalis (J. Agardh) J.M. Huisman & T. Schils Text
Izziella vulcanensis J.M. Huisman & S.-M. Lin Text
copyright 2025 Regents of the University of California
Most recent update:
Thu May 15 10:23:46 2025
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