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Taxa with Images
This page provides a complete list of taxa that have images. Use the controls below to browse and search for images by family, genus, or species.
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Scientific Name Search
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Saccharina angustata
Saccharina angustissima
Saccharina bongardiana
Saccharina bongardiana f. subsessilis
Saccharina bongardiana f. subsimplex
Saccharina cichorioides
Saccharina cichorioides f. coriacea
Saccharina cichorioides f. sachalinensis
Saccharina complanata
Saccharina crassifolia
Saccharina dentigera
Saccharina groenlandica
Saccharina gurjanovae
Saccharina gyrata
Saccharina japonica
Saccharina latissima
Saccharina longicruris
Saccharina longipedalis
Saccharina longissima
Saccharina religiosa
Saccharina sculpera
Saccharina sessilis
Saccharina subsessilis
Saccharina yendoana
Sacconema rupestre
Saccorhiza bulbosa
Saccorhiza bulbosa var. mediterranea
Saccorhiza dermatodea
Saccorhiza polyschides
Sahlingia subintegra
Salishia chilensis
Salishia firma
Salishia sanguinea
Sarcinochrysis marina
Sarcodia ceylanica
Sarcodia ciliata
Sarcodia dentata
Sarcodia dichotoma
Sarcodia grandifolia
Sarcodia marginata
Sarcodia montagneana
Sarcodia multifida
Sarcodia palmata
Sarcodiotheca caribaea
Sarcodiotheca dichotoma
Sarcodiotheca divaricata
Sarcodiotheca elongata
Sarcodiotheca furcata
Sarcodiotheca gaudichaudii
Sarcodiotheca linearis
Sarcodiotheca taylorii
Sarcomenia delesserioides
Sarconema filiforme
Sarconema scinaioides
Sarcothalia atropurpurea
Sarcothalia circumcincta
Sarcothalia crassifolia
Sarcothalia crispata
Sarcothalia decipiens
Sarcothalia dichotoma
Sarcothalia insidiosa
Sarcothalia lanceata
Sarcothalia livida
Sarcothalia marginifera
Sarcothalia papillosa
Sarcothalia radula
Sarcothalia scutellata
Sarcothalia stiriata
Sarcotrichia dolichocystidea
Sarcotrichia tenera
Sargassopsis decurrens
Sargassopsis heteromorphum
Sargassum acinacifolium
Sargassum acinaciforme
Sargassum acinaria
Sargassum acinarium
Sargassum aemulum
Sargassum aemulum var. carpophylloides
Sargassum agardhianum
Sargassum albemarlense
Sargassum amaliae
Sargassum ammophilum
Sargassum angustifolium
Sargassum aquifolium
Sargassum araii
Sargassum arnaudianum
Sargassum asperifolium
Sargassum assimile
Sargassum autumnale
Sargassum bacciferum
Sargassum bacciferum f. angustum
Sargassum baccularia
Sargassum bermudense
Sargassum bermudense var. contractum
Sargassum bermudense var. hillebrandtii
Sargassum bermudense var. pinnatifidum
Sargassum bermudense var. stagnale
Sargassum binderi
Sargassum binderi var. ceylanicum
Sargassum biserrula
Sargassum boryanum
Sargassum boveanum
Sargassum brandegeei
Sargassum brevifolium
Sargassum buxifolium
Sargassum capillare
Sargassum carpophyllum
Sargassum cervicorne
Sargassum cinctum
Sargassum cinereum
Sargassum cinereum var. lepidum
Sargassum confusum
Sargassum coreanum
Sargassum coriifolium
Sargassum cornigerum
Sargassum crispifolium
Sargassum cristaefolium
Sargassum cristaefolium var. condensatum
Sargassum cuneifolium
Sargassum cylindrocystum
Sargassum cymosum
Sargassum cystocarpum
Sargassum decaisnei
Sargassum decipiens
Sargassum decurrens
Sargassum densifolium
Sargassum dentifolium
Sargassum desfontainesii
Sargassum desvauxii
Sargassum distichum
Sargassum droserifolium
Sargassum duplicatum
Sargassum duplicatum f. dubium
Sargassum duplicatum var. rotundatum
Sargassum echinocarpum
Sargassum ecuadoreanum
Sargassum elegans
Sargassum erinaceum
Sargassum erosum
Sargassum fallax
Sargassum filicinum
Sargassum filifolium
Sargassum filipendula
Sargassum filipendula f. subedentatum
Sargassum filipendula var. contractum
Sargassum filipendula var. laxum
Sargassum filipendula var. montagnei
Sargassum fissifolium
Sargassum flavicans
Sargassum flavifolium
Sargassum fluitans
Sargassum fresenianum
Sargassum fulvellum
Sargassum furcatum
Sargassum fusiforme
Sargassum galapagense
Sargassum galapagense var. setifolium
Sargassum gaudichaudii
Sargassum giganteifolium
Sargassum glaucescens
Sargassum globulariifolium
Sargassum godeffroyi
Sargassum gracile
Sargassum graminifolium
Sargassum granuliferum
Sargassum grevillei
Sargassum hemiphyllum
Sargassum hemiphyllum var. chinense
Sargassum henslowianum
Sargassum henslowianum var. bellonae
Sargassum herklotsii
Sargassum herporhizum
Sargassum heterocystum
Sargassum horneri
Sargassum hornschuchii
Sargassum hornschuchii var. lunense
Sargassum horridum
Sargassum howeanum
Sargassum howellii
Sargassum hystrix
Sargassum hystrix var. spinulosum
Sargassum ilicifolium
Sargassum ilicifolium var. conduplicatum
Sargassum incanum
Sargassum incisifolium
Sargassum incisifolium var. nulliporum
Sargassum involucratum
Sargassum johnsonii
Sargassum johnstonii
Sargassum johnstonii f. gracile
Sargassum kuetzingii
Sargassum kushimotense
Sargassum lacerifolium
Sargassum laevigatum
Sargassum lanceolatum
Sargassum lanceolatum var. colombonse
Sargassum lapazeanum
Sargassum latifolium
Sargassum lendigerum
Sargassum leptopodum
Sargassum liebmannii
Sargassum linearifolium
Sargassum linifolium var. salicifolium
Sargassum longifolius
Sargassum lophocarpum
Sargassum macdougalii
Sargassum macrocarpum
Sargassum marcaccii
Sargassum marginatum
Sargassum mcclurei
Sargassum micracanthum
Sargassum microceratium
Sargassum microcystum
Sargassum microphyllum
Sargassum miyabei
Sargassum muticum
Sargassum myriocystum
Sargassum natans
Sargassum neurophorum
Sargassum nigrescens
Sargassum nigrifolium
Sargassum nipponicum
Sargassum notarisii
Sargassum novae-hollandiae
Sargassum obovatum
Sargassum obtusifolium
Sargassum okamurae
Sargassum oligocystum
Sargassum oocyste
Sargassum pacificum
Sargassum pacificum f. congestum
Sargassum pacificum f. rigidiusculum
Sargassum pacificum var. megaphyllum
Sargassum pallidum
Sargassum palmeri
Sargassum paniculatum
Sargassum paradoxum
Sargassum parvifolium
Sargassum patens
Sargassum patens var. rodgersianum
Sargassum patens var. schizophyllum
Sargassum phyllocystum
Sargassum piluliferum
Sargassum pinnatifidum
Sargassum plagiophyllum
Sargassum platycarpum
Sargassum polyacanthum
Sargassum polyacanthum f. americanum
Sargassum polyceratium
Sargassum polyceratium var. ovatum
Sargassum polycystum
Sargassum polyphyllum
Sargassum polyporum
Sargassum portierianum
Sargassum pteropleuron
Sargassum pulchellum
Sargassum pusillum
Sargassum ramifolium
Sargassum ringgoldianum
Sargassum ringoldianum
Sargassum robustum
Sargassum sagamianum
Sargassum salicifolioides
Sargassum salicifolium
Sargassum saltii
Sargassum sandei
Sargassum scherzerianum
Sargassum scoparium
Sargassum segii
Sargassum serratifolium
Sargassum setifolium
Sargassum siliquastrum
Sargassum siliquosum
Sargassum sinclairii
Sargassum sinicola
Sargassum sinicola subsp. camouii
Sargassum sinicola subsp. sinicola
Sargassum sonorense
Sargassum spathulifolium
Sargassum spinifex
Sargassum spinuligerum
Sargassum stenophyllum
Sargassum subrepandum
Sargassum subrepandum var. rueppellii
Sargassum swartzii
Sargassum taeniatum
Sargassum telephifolium
Sargassum templetonii
Sargassum tenerrimum
Sargassum tenue
Sargassum tenuissimum
Sargassum teretifolium
Sargassum thunbergii
Sargassum torvum
Sargassum tosaense
Sargassum trichocarpum
Sargassum trichophyllum
Sargassum tristichum
Sargassum vachellianum
Sargassum vaysierianum
Sargassum verrucosum
Sargassum vestitum
Sargassum virgatum
Sargassum vizcainense
Sargassum vulgare
Sargassum vulgare f. diversifolium
Sargassum vulgare f. ovatum
Sargassum vulgare var. foliosissimum
Sargassum vulgare var. latifolium
Sargassum wightii
Sargassum wolfii
Sargassum yamadae
Sargassum yamamotoi
Sargassum yendoi
Sargassum yezoense
Sargassum zacae
Saundersella simplex
Sauvageaugloia divaricata
Sauvageaugloia griffithsiana
Sauvageaugloia ikomae
Savoiea bipinnata
Scaberia agardhii
Scaberia rugulosa
Scagelia americana
Scagelia pylaisaei
Scagelonema parasitica
Scagelothamnion pusillum
Scagelothamnion turneri
Scaphospora kingii
Scenedesmus abundans
Scenedesmus acuminatus
Scenedesmus acutiformis
Scenedesmus acutus
Scenedesmus aldavei
Scenedesmus alternans
Scenedesmus arcuatus
Scenedesmus aristatus
Scenedesmus armatus
Scenedesmus basiliensis
Scenedesmus bidentatus
Scenedesmus bijuga
Scenedesmus bijuga var. alternans
Scenedesmus bijugatus
Scenedesmus bijugatus var. alternans
Scenedesmus brasiliensis
Scenedesmus caudatus
Scenedesmus denticulatus
Scenedesmus dimorphus
Scenedesmus ecornis
Scenedesmus hystrix
Scenedesmus longus
Scenedesmus magnus
Scenedesmus maximus var. peruviensis
Scenedesmus obliquus
Scenedesmus obtusus
Scenedesmus opoliensis
Scenedesmus quadrialatus
Scenedesmus quadricauda
Scenedesmus quadricauda var. bicaudata
Scenedesmus quadricauda var. variabilis
Scenedesmus rotundus
Scenedesmus serratus
Schimmelmannia dawsonii
Schimmelmannia elegans
Schimmelmannia plumosa
Schimmelmannia schousboei
Schimmelmannia venezuelensis
Schizochlaenion rhodotrichum
Schizochlamydella capsulata
Schizochlamys aurantia
Schizochlamys gelatinosa
Schizodictyon nigrum
Schizogonium boryanum
Schizogonium contortum
Schizogonium crenulatum
Schizogonium laetevirens
Schizogonium murale
Schizogonium neesii
Schizogonium percursum
Schizogonium ravenelii
Schizogonium tortum
Schizomeris leibleinii
Schizonema apiculatum
Schizonema aureum
Schizonema comoides
Schizonema dillwynii
Schizonema grevillei
Schizonema grevillii
Schizonema implicatum
Schizonema obtusum
Schizonema parasiticum
Schizonema ramosissimum
Schizonema rutilans
Schizonema sericeum
Schizonema subcohaerens
Schizonema tenellum
Schizonema tenue
Schizonema zanardinii
Schizoseris bombayensis
Schizoseris condensata
Schizoseris dichotoma
Schizoseris griffithsia
Schizoseris hymenena
Schizoseris laciniata
Schizoseris multifoliata
Schizoseris perriniae
Schizoseris subdichotoma
Schizothrix acutissima
Schizothrix arenaria
Schizothrix bosniaca
Schizothrix braunii
Schizothrix calcicola
Schizothrix calcicola f. symplociformis
Schizothrix calcicola f. violacea
Schizothrix calida
Schizothrix californica
Schizothrix chalybea
Schizothrix coriacea
Schizothrix cresswellii
Schizothrix creswellii
Schizothrix dailyi
Schizothrix fasciculata
Schizothrix fragilis
Schizothrix fuscescens
Schizothrix giuseppei
Schizothrix heufleri
Schizothrix hyalina
Schizothrix lacustris
Schizothrix lacustris var. caespitosa
Schizothrix lardacea
Schizothrix lateritia
Schizothrix lateritia f. symplocoides
Schizothrix lateritia var. rosea
Schizothrix lateritia var. subaeruginea
Schizothrix longearticulata
Schizothrix longiarticulata
Schizothrix macbridei
Schizothrix mellea
Schizothrix mellea var. minor
Schizothrix mexicana
Schizothrix minuta
Schizothrix parciramosa
Schizothrix pulvinata
Schizothrix purpurascens
Schizothrix purpurascens var. cruenta
Schizothrix regeliana var. calotrichoidea
Schizothrix richardsii
Schizothrix rivularioides
Schizothrix rivularis
Schizothrix rosea
Schizothrix rubella
Schizothrix rupicola
Schizothrix stricklandii
Schizothrix symplocoides
Schizothrix taylori
Schizothrix telephoroides
Schizothrix tenerrima
Schizothrix thelephoroides
Schizothrix thermophila
Schizothrix tinctoria
Schizothrix vaginata
Schizothrix violacea
Schizothrix willei
Schizothrix wollei
Schizymenia apoda
Schizymenia binderi
Schizymenia dubyi
Schizymenia ecuadoreana
Schizymenia epiphytica
Schizymenia johnstonii
Schizymenia novae-zelandiae
Schizymenia pacifica
Schmitzia evanescens
Schmitzia hiscockiana
Schmitzia japonica
Schmitziella endophloea
Schottera nicaeensis
Schroederia setigera
Schroederiella africana
Sciadophycus stellatus
Scinaia acuta
Scinaia berggrenii
Scinaia boergesenii
Scinaia capensis
Scinaia caribaea
Scinaia carnosa
Scinaia chinensis
Scinaia complanata
Scinaia confusa
Scinaia fascicularis
Scinaia firma
Scinaia flabellata
Scinaia furcata
Scinaia furcellata
Scinaia halliae
Scinaia hatei
Scinaia hormoides
Scinaia incrassata
Scinaia interrupta
Scinaia japonica
Scinaia johnstoniae
Scinaia latifrons
Scinaia moniliformis
Scinaia moretonensis
Scinaia okamurae
Scinaia okiensis
Scinaia pseudomoniliformis
Scinaia salicornioides
Scinaia setchellii
Scinaia snyderae
Scinaia tsinglanensis
Scinaia undulata
Scinaia verae
Sciurothamnion stegengae
Scolioneis tumida
Scotinosphaera paradoxa
Scytonema arcangelii
Scytonema austinii
Scytonema azureum
Scytonema caldarium
Scytonema calothrichoides
Scytonema capitatum
Scytonema catenulum
Scytonema cincinnatum
Scytonema coactile
Scytonema conchophilum
Scytonema cookei
Scytonema crassum
Scytonema crispum
Scytonema crustaceum
Scytonema evanescens
Scytonema figuratum
Scytonema flexuosum
Scytonema guyanense
Scytonema guyanense var. minus
Scytonema hofmannii
Scytonema hofmannii var. calcicola
Scytonema intertextum
Scytonema involvens
Scytonema javanicum
Scytonema julianum
Scytonema junipericola
Scytonema leprieurii
Scytonema longiarticulatum
Scytonema lyngbyoides
Scytonema magnum
Scytonema millei
Scytonema mirabile
Scytonema multiramosum
Scytonema myochrous
Scytonema obscurum var. terrestre
Scytonema ocellatum
Scytonema ocellatum var. constrictum
Scytonema ocellatum var. purpureum
Scytonema pellucidum
Scytonema pulchellum
Scytonema punctatum
Scytonema rivulare
Scytonema spirulinoides
Scytonema stuposum
Scytonema subgelatinosum
Scytonema tenellum
Scytonema tenue
Scytonema tolypothrichoides
Scytonema tolypotrichoides
Scytonema turicense
Scytonema variabile
Scytonema varium
Scytonematopsis crustacea
Scytonematopsis fuliginosa
Scytonematopsis pilosa
Scytosiphon canaliculatus
Scytosiphon clathratus
Scytosiphon complanatus
Scytosiphon compressus
Scytosiphon dotyi
Scytosiphon filum
Scytosiphon gracilis
Scytosiphon lomentaria
Scytosiphon lomentaria f. cylindricus major
Scytosiphon simplicissimus
Scytothalia dorycarpa
Scytothamnus australis
Scytothamnus fasciculatus
Sebdenia dawsonii
Sebdenia dichotoma
Sebdenia flabellata
Sebdenia limensis
Sebdenia monardiana
Sebdenia monnardiana
Sebdenia rodrigueziana
Sebdenia rubra
Seirococcus axillaris
Seirospora apiculata
Seirospora byssoides
Seirospora giraudyi
Seirospora interrupta
Seirospora occidentalis
Seirospora purpurea
Selenastrum acuminatum
Selenastrum bibraianum
Selenastrum gracile
Selenoderma malmeana
Sellaphora wummensis
Serraticardia macmillanii
Sheathia americana
Sheathia arcuata
Sheathia boryana
Sheathia confusa
Sheathia exigua
Sheathia fluitans
Sheathia grandis
Sheathia involuta
Shepleya australis
Shepleya verticillata
Shepleya wattsii
Sigmatella nitzschii
Silvetia babingtonii
Silvetia compressa
Sinosiphonia elegans
Siphonocladus feldmannii
Siphonocladus forsskalii
Siphonocladus pusilloides
Siphonocladus pusillus
Siphonocladus rigidus
Siphonocladus tropicus
Siphonogramen abbreviatum
Siphonogramen parvum
Sirocoleum guyanense
Sirocoleum kurzii
Sirodotia angolensis
Sirodotia delicatula
Sirodotia gardneri
Sirodotia huillensis
Sirodotia polygama
Sirodotia suecica
Sirogonium ceylanicum
Sirogonium illinoisense
Sirogonium kamatii
Sirogonium retroversum
Sirogonium sticticum
Sirophysalis trinodis
Sirosiphon ocellatum
Sirosiphon saxicola
Smithora naiadum
Smithsoniella earleae
Snowella lacustris
Solenia clathrata
Solenia compressa var. prolifera
Solenia intestinalis
Solenia intestinalis var. maxima
Solieria chordalis
Solieria dichotoma
Solieria dura
Solieria filiformis
Solieria jaasundii
Solieria pacifica
Solieria robusta
Solieria tenuis
Sonderella linearis
Sonderopelta capensis
Sonderophycus capensis
Sonderophycus coriaceus
Soranthera ulvoidea
Soranthera ulvoidea f. difformis
Soranthera ulvoidea f. ulvoidea
Sorapion kjellmanii
Sorapion simulans
Sorastrum spinulosum
Sorella delicatula
Sorella pinnata
Sorella pulchra
Sorella repens
Sorocarpus micromorus
Sparlingia pertusa
Sparlingia stipitata
Spatoglossum asperum
Spatoglossum australasicum
Spatoglossum chapmanii
Spatoglossum crassum
Spatoglossum crispatum
Spatoglossum ecuadoreanum
Spatoglossum howellii
Spatoglossum latum
Spatoglossum macrodontum
Spatoglossum schmittii
Spatoglossum schroederi
Spatoglossum solieri
Spatoglossum stipitatum
Spatoglossum subflabellatum
Spatoglossum variabile
Spermatochnus paradoxus
Spermothamnion cymosum
Spermothamnion flabellatum
Spermothamnion gymnocarpum
Spermothamnion inordinatum
Spermothamnion investiens
Spermothamnion investiens var. cidaricola
Spermothamnion irregulare
Spermothamnion macromeres
Spermothamnion nonatoi
Spermothamnion orientale
Spermothamnion repens
Spermothamnion repens var. flagelliferum
Spermothamnion repens var. variabile
Spermothamnion snyderae
Spermothamnion snyderae var. attenuata
Spermothamnion snyderae var. snyderae
Spermothamnion strictum
Spermothamnion turneri
Spermothamnion turneri var. monoica
Sphacelaria bertiana
Sphacelaria biradiata
Sphacelaria brachygona
Sphacelaria bracteata
Sphacelaria brevicornis
Sphacelaria californica
Sphacelaria cervicornis
Sphacelaria ceylanica
Sphacelaria cirrosa
Sphacelaria cornuta
Sphacelaria didichotoma
Sphacelaria filicina
Sphacelaria furcigera
Sphacelaria fusca
Sphacelaria nana
Sphacelaria nipponica
Sphacelaria novae-caledoniae
Sphacelaria novae-hollandiae
Sphacelaria olivacea
Sphacelaria plumula
Sphacelaria reticulata
Sphacelaria rigidula
Sphacelaria stewartenis
Sphacelaria stewartensis
Sphacelaria taitensis
Sphacelaria tribuloides
Sphacelaria yamadae
Sphaceloderma caespitulum
Sphacelorbus nanus
Sphaenosiphon minimus
Sphaerellocystis ampla
Sphaerellopsis ampla
Sphaerellopsis mucosa
Sphaerococcus bifidus
Sphaerococcus cartilagineus
Sphaerococcus ciliatus
Sphaerococcus confervoides
Sphaerococcus confervoides var. ramulosus
Sphaerococcus coronopifolius
Sphaerococcus crispus
Sphaerococcus gigartinus
Sphaerococcus multipartitus
Sphaerococcus multipartitus var. lichenoides
Sphaerococcus poepigii
Sphaerococcus rhizophylloides
Sphaerocystis schroeteri
Sphaeroplea annulina
Sphaeroplea annulina var. crassisepta
Sphaeroplea fragilis
Sphaeroplea robusta
Sphaerotrichia disessa
Sphaerotrichia divaricata
Sphaerotrichia firma
Sphaerozosma archeri
Sphaerozosma aubertianum
Sphaerozosma excavatum
Sphaerozosma filiforme
Sphaerozosma pygmaeum
Sphaerozosma serratum
Sphaerozosma vertebratum
Sphaerozyga carmichaelii
Sphaerozyga polysperma
Sphondylothamnion multifidum
Spinocosmarium quadridens
Spirocladia barodensis
Spirocladia hodgsoniae
Spirocladia loochooensis
Spirogyra adjerensis
Spirogyra adnata
Spirogyra affinis
Spirogyra alternata
Spirogyra angolensis
Spirogyra arcta
Spirogyra areolata
Spirogyra bellis
Spirogyra borgeana
Spirogyra braziliensis
Spirogyra buchetii
Spirogyra calospora
Spirogyra cataeniformis
Spirogyra catenaeformis
Spirogyra cateniformis
Spirogyra communis
Spirogyra condensata
Spirogyra corrugata
Spirogyra crassa
Spirogyra crassiuscula
Spirogyra croasdaleae
Spirogyra daedalea
Spirogyra decimina
Spirogyra decimina var. juergensii
Spirogyra densa
Spirogyra dentireticulata
Spirogyra diluta
Spirogyra dubia
Spirogyra dubia var. longiarticulata
Spirogyra echinospora
Spirogyra ellipsospora
Spirogyra elongata
Spirogyra fallax
Spirogyra flavescens
Spirogyra flavicans
Spirogyra fluviatilis
Spirogyra fuscoatra
Spirogyra gracilis
Spirogyra grevilleana
Spirogyra groenlandica
Spirogyra hartigii
Spirogyra hassallii
Spirogyra hatillensis
Spirogyra heeriana
Spirogyra hyalina
Spirogyra hymerae
Spirogyra inaequalis
Spirogyra inconstans
Spirogyra inflata
Spirogyra insignis
Spirogyra insignis var. braunii
Spirogyra intermedia
Spirogyra irregularis
Spirogyra juergensii
Spirogyra jugalis
Spirogyra lagerheimii
Spirogyra lagerheimii f. breviarticulata
Spirogyra laxa
Spirogyra lineata
Spirogyra lubrica
Spirogyra lutetiana
Spirogyra majuscula
Spirogyra malmeana
Spirogyra margaritata
Spirogyra maxima
Spirogyra mirabilis
Spirogyra neglecta
Spirogyra nitida
Spirogyra notabilis
Spirogyra occidentalis
Spirogyra olivascens
Spirogyra orthospira
Spirogyra orthospira f. purpurea
Spirogyra parvispora
Spirogyra parvula
Spirogyra plena
Spirogyra polymorpha
Spirogyra polytaeniata
Spirogyra porticalis
Spirogyra porticalis f. minor
Spirogyra pratensis
Spirogyra princeps
Spirogyra protecta
Spirogyra pulchella
Spirogyra punctata
Spirogyra quadrata
Spirogyra quadrilaminata
Spirogyra quinina
Spirogyra quinina var. inaequalis
Spirogyra rectispira
Spirogyra regularis
Spirogyra reticulata
Spirogyra rivularis
Spirogyra rugulosa
Spirogyra setiformis
Spirogyra singularis
Spirogyra spreeiana
Spirogyra stagnalis
Spirogyra stictica
Spirogyra submarina
Spirogyra submaxima
Spirogyra subsalsa
Spirogyra tenuissima
Spirogyra ternata
Spirogyra torta
Spirogyra torulosa
Spirogyra triplicata
Spirogyra tuberculata
Spirogyra turfosa
Spirogyra varians
Spirogyra velata
Spirogyra venosa
Spirogyra ventricosa
Spirogyra weberi
Spirogyra weberi var. grevilleana
Spirogyra woodsii
Spirogyra wrightiana
Spirotaenia closteridia var. elongata
Spirotaenia condensata
Spirotaenia endospira
Spirotaenia minuta
Spirotaenia parvula
Spirulina adriatica
Spirulina breviaticulata
Spirulina caldaria
Spirulina gomontiana
Spirulina jenneri
Spirulina labyrinthiformis
Spirulina major
Spirulina meneghiniana
Spirulina nordstedtii
Spirulina oscillarioides
Spirulina oscillariorides
Spirulina platensis
Spirulina platensis var. californica
Spirulina princeps
Spirulina socialis
Spirulina stagnicola
Spirulina subsalsa
Spirulina subsalsa var. oceanica
Spirulina subtilissima
Spirulina tenerrima
Spirulina tenuissima
Spirulina turfosa
Spirulina versicolor
Spirulina weissii
Splachnidium rugosum
Spondylomorum quaternarium
Spondylosium papillosum
Spondylosium planum
Spondylosium pulchellum
Spondylosium pulchrum
Spondylosium pygmaeum
Spondylosium secedens
Spondylosium tetragonum
Spongiochloris excentrica
Spongiochloris incrassata
Spongiochloris lamellata
Spongiochloris minor
Spongiochloris spongiosa
Spongiococcum tetrasporum
Spongites absimile
Spongites decipiens
Spongites discoidea
Spongites fruticulosa
Spongites hyperella
Spongites impar
Spongites yendoi
Spongoclonium brownianum
Spongoclonium caribaeum
Spongoclonium conspicuum
Spongoclonium fasciculatum
Spongoclonium pastorale
Spongoclonium scopula
Spongomorpha aeruginosa
Spongomorpha arcta
Spongomorpha atrovirens
Spongomorpha cincinnata
Spongomorpha coalita
Spongomorpha conjuncta
Spongomorpha duriuscula
Spongomorpha heterocladia
Spongomorpha hystrix
Spongomorpha mertensii
Spongomorpha minima
Spongomorpha pacifica
Spongomorpha saxatilis
Spongomorpha spiralis
Spongomorpha vernalis
Spongonema tomentosum
Spongophloea tissotii
Sporochnus adriaticus
Sporochnus anomalus
Sporochnus apodus
Sporochnus bolleanus
Sporochnus comosus
Sporochnus dotyi
Sporochnus moorei
Sporochnus pedunculatus
Sporochnus radiciformis
Sporochnus rostratus
Sporochnus stylosus
Sporoglossum lophurellae
Sporolithon durum
Sporolithon episporum
Sporolithon erythraeum
Sporolithon molle
Sporolithon ptychoides
Sporolithon sibogae
Spyridia aculeata
Spyridia aculeata var. berkeleyana
Spyridia aculeata var. disticha
Spyridia aculeata var. hypneoides
Spyridia alternans
Spyridia americana
Spyridia ceramioides
Spyridia clavata
Spyridia cupressina
Spyridia cuspidata
Spyridia dasyoides
Spyridia elongata
Spyridia filamentosa
Spyridia filamentosa var. refracta
Spyridia fruticulosa
Spyridia fusiformis
Spyridia griffithsiana
Spyridia horridula
Spyridia hypnoides
Spyridia hypnoides subsp. complanata
Spyridia hypnoides var. inermis
Spyridia nudiuscula
Spyridia plumosa
Spyridia setacea
Spyridia squalida
Spyridia tasmanica
Stapfia cylindrica
Staurastrum aculeatum
Staurastrum aculeatum var. brauni
Staurastrum alternans
Staurastrum alternans var. basichondrum
Staurastrum anatinum
Staurastrum arachne
Staurastrum arctiscon
Staurastrum aristiferum
Staurastrum asperum
Staurastrum asteroideum var. nanum
Staurastrum avicula
Staurastrum bacillare
Staurastrum bicorne
Staurastrum bieneanum
Staurastrum bifidum
Staurastrum botrophilum
Staurastrum brachiatum
Staurastrum brachioprominens
Staurastrum brachioprominens var. archerianum
Staurastrum brebissonii
Staurastrum breviaculeatum
Staurastrum brevispina
Staurastrum brevispinum
Staurastrum bulnheimianum
Staurastrum cerastes
Staurastrum clevei
Staurastrum columbianum
Staurastrum concinnum
Staurastrum connatum
Staurastrum controversum
Staurastrum crenulatum
Staurastrum cristatum
Staurastrum cuspidatum
Staurastrum cyrtocerum
Staurastrum dejectum
Staurastrum dejectum var. debaryanum
Staurastrum depressum
Staurastrum dickiei
Staurastrum dilatatum
Staurastrum dispar
Staurastrum echinatum
Staurastrum elongatum
Staurastrum erlangense
Staurastrum forficulatum
Staurastrum franconicum
Staurastrum furcatum
Staurastrum furcigerum
Staurastrum furcigerum f. eustephanum
Staurastrum geminatum
Staurastrum gracile
Staurastrum gracile var. nanum
Staurastrum hantzchii
Staurastrum hantzschii
Staurastrum heimerlianum
Staurastrum heimerlianum var. spinulosum
Staurastrum hirsutum
Staurastrum hispidum
Staurastrum hystrix
Staurastrum inconspicuum
Staurastrum intricatum
Staurastrum laeve
Staurastrum leptacanthum
Staurastrum leptocladum
Staurastrum leptocladum var. cornutum
Staurastrum longipes
Staurastrum longiradiatum
Staurastrum longissimum
Staurastrum lunatum
Staurastrum maamense
Staurastrum macrocerum
Staurastrum margaritaceum
Staurastrum megacanthum
Staurastrum megalonothum
Staurastrum megalonotum
Staurastrum merianii
Staurastrum minnesotense
Staurastrum minutissimum
Staurastrum monticulosum
Staurastrum mucronatum
Staurastrum munitum
Staurastrum muricatum
Staurastrum muticum
Staurastrum nigrae-silvae
Staurastrum notarisii
Staurastrum ophiura
Staurastrum orbiculae
Staurastrum orbiculare
Staurastrum pachyrhynchum
Staurastrum papillosum
Staurastrum paradoxum
Staurastrum pilosum
Staurastrum polymorphum
Staurastrum polytrichum
Staurastrum pringsheimii
Staurastrum protractum
Staurastrum psilosporum
Staurastrum punctulatum
Staurastrum punctulatum var. kjellmanii
Staurastrum pygmaeum
Staurastrum quadrangulare
Staurastrum ravenelii
Staurastrum ravenellii
Staurastrum rostellum
Staurastrum rotula
Staurastrum saxonicum
Staurastrum scabrum
Staurastrum sebaldi
Staurastrum sebaldii
Staurastrum senarium
Staurastrum sexangulare
Staurastrum silesiacum
Staurastrum simonyi
Staurastrum spinosum
Staurastrum spongiosum
Staurastrum spongiosum var. griffithsianum
Staurastrum striolatum
Staurastrum subcornutum
Staurastrum teliferum
Staurastrum tetracerum
Staurastrum trapezicum
Staurastrum trelleckense
Staurastrum tricorne
Staurastrum tumidum
Staurastrum vestitum
Stauridium tetras
Staurodesmus connatus
Staurodesmus convergens
Staurodesmus cuspidatus
Staurodesmus dejectus
Staurodesmus dejectus var. apiculatus
Staurodesmus dickiei
Staurodesmus dickiei var. circularis
Staurodesmus extensus
Staurodesmus incus
Staurodesmus megacanthus
Staurodesmus obsoletus
Stauroneis acuta
Stauroneis amphilepta
Stauroneis anceps
Stauroneis cohnii
Stauroneis gracilis
Stauroneis lanceolata
Stauroneis minuta
Stauroneis phoenicenteron
Stauroneis platystoma
Stauroneis pumila
Stauroneis undulata
Stauroptera peckii
Stenogramma californicum
Stenogramma interruptum
Stenogramma leptophyllum
Stenopeltis gracilis
Stenopterobia curvula
Stenopterobia sigmatella
Stephanocystis crassipes
Stephanocystis dioica
Stephanocystis geminata
Stephanocystis hakodatensis
Stephanocystis neglecta
Stephanocystis osmundacea
Stephanocystis setchellii
Stephanodiscus astraea
Stephanodiscus binderanus
Stephanosphaera pluvialis
Stereonema asperum
Stereonema chthonoblastes
Sterrocolax crassior
Stichococcus bacillaris
Stichococcus deasonii
Stichococcus marinus
Stichococcus minor
Stichococcus mirabilis
Stichogloea olivacea
Stichosiphon filamentosus
Stichosiphon hansgirgii
Stichosiphon sansibaricus
Stichosiphon willei
Stichothamnion cymatophilum
Stictodiscus californicus
Stictosiphonia intricata
Stictosporum nitophylloides
Stictyosiphon adriaticus
Stictyosiphon griffithsianus
Stictyosiphon laxus
Stictyosiphon lofotensis
Stictyosiphon lutarius
Stictyosiphon soriferus
Stictyosiphon subarticulatus
Stictyosiphon tortilis
Stigeoclonium aestivale
Stigeoclonium amoenum
Stigeoclonium amoenum f. biforme
Stigeoclonium amoenum var. insigne
Stigeoclonium amoenum var. novizelandicum
Stigeoclonium askenasyi
Stigeoclonium attenuatum
Stigeoclonium autumnale
Stigeoclonium biasolettianum
Stigeoclonium elongatum
Stigeoclonium falklandicum
Stigeoclonium farctum
Stigeoclonium fasciculare
Stigeoclonium fasciculare var. glomeratum
Stigeoclonium flagelliferum
Stigeoclonium helveticum
Stigeoclonium longearticulatum
Stigeoclonium longipilum
Stigeoclonium lubricum
Stigeoclonium nanum
Stigeoclonium nanum f. subsimplex
Stigeoclonium nudiusculum
Stigeoclonium protensum
Stigeoclonium pusillum
Stigeoclonium setigerum
Stigeoclonium stagnatile
Stigeoclonium subsecundum
Stigeoclonium subsimplex
Stigeoclonium subspinosum
Stigeoclonium subuligerum
Stigeoclonium tenue
Stigeoclonium tenue var. uniforme
Stigeoclonium thermale
Stigeoclonium uniforme
Stigeoclonium variabile
Stigonema aerugineum
Stigonema anomalum
Stigonema cornutum
Stigonema hormoides
Stigonema hormoides var. compactum
Stigonema informe
Stigonema mamillosum
Stigonema minutum
Stigonema minutum var. pauciramosum
Stigonema minutum var. ramentaceum
Stigonema minutum var. saxicola
Stigonema ocellatum
Stigonema ocellatum var. globosum
Stigonema opalescens
Stigonema panniforme
Stigonema pauciramosum
Stigonema ramosissimum
Stigonema robustum
Stigonema scytonematoides
Stigonema thermale
Stigonema tomentosum
Stigonema tuberculatum
Stilophora erythraea
Stilophora flanaganii
Stilophora iranica
Stilophora nodulosa
Stilophora rhizodes
Stilophora rhizodes var. adriatica
Stilophora rhizodes var. contorta
Stilophora tenella
Stilopsis harveyana
Stilopsis lejolisii
Stirnia prolifera
Stoechospermum polypodioides
Stolonophora brandegeei
Stragularia clavata
Stragularia spongiocarpa
Streblocladia camptoclada
Streblocladia collabens
Streblocladia corymbifera
Streblocladia glomerulata
Streblocladia muelleriana
Streblocladia spicata
Streblocladia tenuissima
Streblonema aecidioides
Streblonema aecidioides f. pacificum
Streblonema anomalum
Streblonema chordariae
Streblonema cokeri
Streblonema collinsii
Streblonema corymbiferum
Streblonema evagatum
Streblonema fasciculatum
Streblonema infestans
Streblonema invisibile
Streblonema minutula
Streblonema pacifica
Streblonema pacificum
Streblonema parasiticum
Streblonema porphyrae
Streblonema reptans
Streblonema rugosum
Streblonema scabiosum
Streblonema solitarium
Streblonema transfixum
Streblonema zanardinii
Streptophyllopsis kuroshioensis
Striaria attenuata
Striaria attenuata var. ramosissima
Striatella arcuata
Striatella unipunctata
Struvea delicatula
Struvea elegans
Struvea japonica
Struvea okamurae
Struvea plumosa
Struveopsis covalamensis
Stylonema alsidii
Stylonema cornu-cervi
Stypocaulon funiculare
Stypocaulon paniculatum
Stypocaulon scoparium
Stypocaulon scoparium f. aestivalis
Stypopodium flabelliforme
Stypopodium multipartitum
Stypopodium zonale
Suhria lingulata
Suhria vittata
Suringariella harveyana
Surirella amphioxys
Surirella anceps
Surirella angusta
Surirella baileyi
Surirella bifrons
Surirella biseriata
Surirella crumena
Surirella cuneata
Surirella delicatissima
Surirella diaphana
Surirella gemma
Surirella intermedia
Surirella minuta
Surirella multifasciata
Surirella nobilis
Surirella ovalis
Surirella ovata
Surirella pinnata
Surirella robusta
Surirella saxonica
Surirella spiralis
Surirella splendida
Surirella splendida f. angustissima
Surirella striatula
Surirella suevica
Symphyocarpus strangulans
Symphyocladia baileyi
Symphyocladia latiuscula
Symphyocladia linearis
Symphyocladia marchantioides
Symphyocladia pumila
Symphyocladiella dendroidea
Symphyocladiella parasitica
Symploca atlantica
Symploca cartilaginea
Symploca dubia
Symploca elegans
Symploca erecta
Symploca funicularis
Symploca howei
Symploca hydnoides
Symploca kieneri
Symploca laeteviridis
Symploca microdonta
Symploca muralis
Symploca muscorum
Symploca muscorum var. rivularis
Symploca paludicola
Symploca parietina
Symploca profunda
Symploca roseola
Symploca symbiotica
Symploca thermalis
Symploca willei
Symplocastrum friesii
Symplocastrum muelleri
Symplocastrum penicillatum
Symplocastrum purpurascens
Synarthrophyton neglectum
Synarthrophyton papillatum
Synarthrophyton patena
Synechococcus bigranulatus
Synechococcus intermedius
Synechocystis aquatilis
Synechocystis primigenia
Synechocystis willei
Synedra actinastroides
Synedra acus
Synedra affinis
Synedra affinis var. fasciculata
Synedra amphicephala
Synedra amphirhyncha
Synedra biceps
Synedra campyla
Synedra capitata
Synedra crystallina
Synedra cyclopum
Synedra fasciculata
Synedra fulgens
Synedra gaillonii
Synedra gallionii
Synedra gracilis
Synedra lunaris
Synedra oxyrhyncha
Synedra oxyrhynchus
Synedra parva
Synedra parvula
Synedra perpusilla
Synedra puchella
Synedra pulchella
Synedra pulchella var. minuta
Synedra radians
Synedra rumpens
Synedra rumpens var. familiaris
Synedra serians
Synedra tabulata
Synedra tenuis
Synedra tenuissima
Synedra ulna
Synedra ulna var. chaseana
Synedra vaucheriae
Synura petersenii
Synura uvella
Syringocolax macroblepharis
Syringoderma abyssicola
Syringoderma australe
Syringoderma phinneyi
Syringodium filiforme
Syringodium isoetifolium