Harvard University Herbaria & Libraries

Index of Botanical Specimens

Name	Polysiphonia Greville
Authorship	Greville
Rank	Genus
NomenclaturalStatus	NomCons
Placed in	Rhodomelaceae
Contains	Polysiphonia abscissa J.D.Hooker & Harvey Polysiphonia abscissoides Womersley Polysiphonia acanthina J. Agardh Polysiphonia acanthophora Kützing Polysiphonia acanthotricha Kützing Polysiphonia acroblasta Kützing Polysiphonia acrolepta Zanardini ex A. De Toni Polysiphonia aculeata (C. Agardh) Fries Polysiphonia aculeifera Zanardini Polysiphonia acuminata N. L. Gardner Polysiphonia adamsiae Womersley Polysiphonia adriatica Schiffner Polysiphonia adscendens Meneghini Polysiphonia adsendens Meneghini Polysiphonia adunca Kützing Polysiphonia affinis Moore bis Polysiphonia agardhiana Greville Polysiphonia akkeshiensis Segi Polysiphonia allochroa (Roth) Duby Polysiphonia amentacea (C. Agardh) Montagne Polysiphonia americana Reinsch Polysiphonia amethystea Kützing Polysiphonia amoena Sonder Polysiphonia amphibia Harvey Polysiphonia amphibolis Womersley Polysiphonia angustissima Kützing Polysiphonia anisogona J.D.Hooker & Harvey Polysiphonia anomala Hollenberg Polysiphonia apiculata Hollenberg Polysiphonia aquamara I.A.Abbott Polysiphonia arachnoidea (C. Agardh) Zanardini Polysiphonia arborescens Kützing Polysiphonia arctica J. Agardh Polysiphonia arenaria Postels & Ruprecht Polysiphonia arenicola Kützing Polysiphonia argentinica W. R. Taylor Polysiphonia argus Kützing Polysiphonia armata J. Agardh Polysiphonia aspera Zanardini ex A. De Toni Polysiphonia asperula Kützing Polysiphonia aterrima J.D.Hooker & Harvey Polysiphonia atlantica Kapraun & J.N.Norris Polysiphonia atra Zanardini Polysiphonia atricapilla J. Agardh Polysiphonia atropurpurea Moore bis Polysiphonia atrorubens (Wahlenberg) Endlicher Polysiphonia atrorubescens (Dillwyn) Greville Polysiphonia attenuata Zanardini Polysiphonia aurantiaca Kützing Polysiphonia aurata Harvey Polysiphonia australiensis Womersley Polysiphonia australis (C. Agardh) J. Agardh Polysiphonia awabiensis Noda Polysiphonia azorica O. C. Schmidt Polysiphonia badia (Dillwyn) Sprengel Polysiphonia baileyi (Harvey) J. Agardh Polysiphonia bajacali Hollenberg Polysiphonia balanicola Falkenberg Polysiphonia bambusina Meneghini Polysiphonia bangi Kützing Polysiphonia bangii (Kützing) Kützing Polysiphonia banyulensis Coppejans Polysiphonia barbatula Kützing Polysiphonia bartlingiana Kützing Polysiphonia baxteri A. H. S. Lucas Polysiphonia beaudettei Hollenberg Polysiphonia beguinotii Schiffner & Vatova Polysiphonia bellula De Notaris Polysiphonia berkeleyi (Montagne) Hooker f. Polysiphonia bharadwajae Sreenivasa Rao Polysiphonia biasolettiana Zanardini Polysiphonia biasolettoana Zanardini Polysiphonia bicornis Ohta Polysiphonia biformis Zanardini Polysiphonia bifurcata Hollenberg Polysiphonia binderi Bonder Polysiphonia binneyi Harvey Polysiphonia bipinnata Postels & Ruprecht Polysiphonia blandii Harvey Polysiphonia boergesenii Baardseth Polysiphonia boldii M.J.Wynne & P.Edwards Polysiphonia bostrychioides P. Crouan & H. Crouan Polysiphonia botryocarpa J.D.Hooker & Harvey Polysiphonia brachygona Harvey Polysiphonia breviarticulata (C. Agardh) Zanardini Polysiphonia brevisegmenta Womersley Polysiphonia brodiei (Dillwyn) Sprengel Polysiphonia bulbosa Fries Polysiphonia byssacea (Kützing) Kützing Polysiphonia byssoclados Harvey Polysiphonia byssoides (Goodenough & Woodward) Greville Polysiphonia caespitosa (Pocock) Hollenberg Polysiphonia caespitula Sonder Polysiphonia calacantha Harvey Polysiphonia californica Harvey Polysiphonia calliptera Kützing Polysiphonia callithamnioides P. Crouan & H. Crouan Polysiphonia callithamnion Sonder Polysiphonia callithamnium Sonder Polysiphonia callitricha Kützing Polysiphonia calodictyon Harvey ex Kützing Polysiphonia calothrix Harvey Polysiphonia camerunensis Pilger Polysiphonia campanulata Delle Chiaje Polysiphonia camptoclada Montagne Polysiphonia cancellata Harvey Polysiphonia capillata De Notaris Polysiphonia capucina P. Crouan & H. Crouan Polysiphonia caramiiformis P. Crouan & H. Crouan Polysiphonia carettia Hollenberg Polysiphonia carmichaeliana Harvey Polysiphonia caspia Kützing Polysiphonia caspica Kützing Polysiphonia castagnei Kützing Polysiphonia castelliana De Notaris & L.Dufour Polysiphonia caulescens J. Agardh Polysiphonia ceramiiformis P. Crouan & H. Crouan Polysiphonia ceratoclada Montagne Polysiphonia cervicornis Kützing Polysiphonia chalarophloea Kützing Polysiphonia chlamydopteris Zanardini Polysiphonia chrysoderma Kützing Polysiphonia cladorrhiza Ardissone Polysiphonia cladostephus Montagne Polysiphonia clavigera Kützing Polysiphonia clevelandii Farlow Polysiphonia cloiophylla (C. Agardh) J. Agardh Polysiphonia coacta C. K. Tseng Polysiphonia coarctata Kützing Polysiphonia coccinea (Hudson) Sprengel Polysiphonia codicola Zanardini ex Frauenfeld Polysiphonia codiicola Zanardini Polysiphonia cokeri Hollenberg Polysiphonia colensoi J.D.Hooker & Harvey Polysiphonia collabens (C. Agardh) Kützing Polysiphonia collinsii Hollenberg Polysiphonia comatula Kützing Polysiphonia commutata Kützing Polysiphonia comoides Harvey Polysiphonia comosa J.D.Hooker & Harvey Polysiphonia compacta Lucas Polysiphonia complanata (Clemente) J. Agardh Polysiphonia concinna Hollenberg Polysiphonia condensata Kützing Polysiphonia confusa Hollenberg Polysiphonia constricta Womersley Polysiphonia corallicola Grunow Polysiphonia corinaldii (Meneghini) De Notaris Polysiphonia corymbifera (C. Agardh) Endlicher Polysiphonia corymbosa J. Agardh Polysiphonia crassa Okamura Polysiphonia crassicollis Borgesen Polysiphonia crassiuscula Harvey Polysiphonia cristata Harvey Polysiphonia curta Montagne Polysiphonia cuspidata J. Agardh Polysiphonia cymosa Kützing Polysiphonia cystophyllicola Noda Polysiphonia dachenensis Xiang Si-duan Polysiphonia dalmatica Meneghini Polysiphonia dasiiformis Zanardini Polysiphonia dasyiformis P. Crouan & H. Crouan Polysiphonia dasyoides Zanardini Polysiphonia daveyae Reinbold Polysiphonia daviesii J.D.Hooker & Harvey Polysiphonia davisii J.D.Hooker & Harvey Polysiphonia decipiens Montagne Polysiphonia decumbens Segi Polysiphonia decussata Hollenberg Polysiphonia delicatula Hollenberg Polysiphonia delphina De Notaris Polysiphonia deludens Falkenberg Polysiphonia dendritica (C. Agardh) J. Agardh Polysiphonia dendroidea Montagne Polysiphonia denticulata Delle Chiaje Polysiphonia denudata (Dillwyn) Greville ex Harvey Polysiphonia derbesii Solier ex Kützing Polysiphonia deschampsii (Agardh) P.L.Crouan & H.M.Crouan Polysiphonia deusta (Roth) Sprengel Polysiphonia devoniensis Maggs & Hommersand Polysiphonia dichocephala Kützing Polysiphonia dichotoma Kützing Polysiphonia dictyura Liebmann ex Kützing Polysiphonia dictyurus J. Agardh Polysiphonia diffusa (Hudson) Jones & Kingston Polysiphonia dilatata Kützing Polysiphonia dillwynii Kützing Polysiphonia discolor (Agardh) Sprengel Polysiphonia disticha Zanardini Polysiphonia divaricata (C. Agardh) Sprengel Polysiphonia divergens J. Agardh Polysiphonia dotyi Hollenberg Polysiphonia doubletiae Sauvageau Polysiphonia dumosa J.D.Hooker & Harvey Polysiphonia dysanophora Kützing Polysiphonia eastwoodiae Setchell & N. L. Gardner Polysiphonia echigoensis Noda Polysiphonia echinata Harvey Polysiphonia elongata (Hudson) Sprengel Polysiphonia elongella Harvey Polysiphonia episcopalis Zanardini Polysiphonia ericoides Harvey Polysiphonia erythraea Schousboe ex J. Agardh Polysiphonia erythrocoma Kützing Polysiphonia exigua Kützing Polysiphonia exilis Harvey Polysiphonia expansa (C. Agardh) Fries Polysiphonia falcata Kützing Polysiphonia fasciculata Kützing Polysiphonia fasciculifera Kützing Polysiphonia fastigiata (Roth) Greville Polysiphonia fernandeziana M. P. Reis Polysiphonia ferox J. Agardh Polysiphonia ferulacea Suhr ex J. Agardh Polysiphonia fibrata (Dillwyn) Harvey Polysiphonia fibrillosa (Dillwyn) Sprengel Polysiphonia figariana Zanardini Polysiphonia filamentosa (Wulfen) Sprengel Polysiphonia filipendula Harvey ex J. Agardh Polysiphonia firma Zanardini Polysiphonia flabelliformis J.D.Hooker & Harvey Polysiphonia flabellulata Harvey Polysiphonia flaccida Rabenhorst Polysiphonia flaccidissima Hollenberg Polysiphonia flagellifera Reinsch Polysiphonia flavescens Zanardini Polysiphonia flexella (C. Agardh) J. Agardh Polysiphonia flexicaulis (Harvey) Collins Polysiphonia floccosa Zanardini Polysiphonia flocculosa (C.Agardh) Endlichter Polysiphonia foeniculacea (C. Agardh) Sprengel Polysiphonia foetidissima Cocks ex Bornet Polysiphonia forcipata Harvey Polysiphonia forfex Harvey Polysiphonia formosa Suhr Polysiphonia fracta Harvey Polysiphonia fragilis Suringar Polysiphonia frutex Harvey Polysiphonia fruticulosa (Wulfen) Sprengel Polysiphonia fucoides (Hudson) Greville Polysiphonia fuliginosa Rudolphi Polysiphonia funebris De Notaris ex J. Agardh Polysiphonia funicularis Meneghini Polysiphonia furcata Meneghini ex A. De Toni Polysiphonia furcellata (C. Agardh) Harvey Polysiphonia fuscescens Harvey Polysiphonia fuscorubens J.D.Hooker & Harvey Polysiphonia gardneri Kylin Polysiphonia gaudichaudii (C. Agardh) Kützing Polysiphonia gelidii Zanardini Polysiphonia gemmifera Yates Polysiphonia gibbesii Harvey Polysiphonia giraudii Derb.& Sol. Polysiphonia glomerulata (C. Agardh) Sprengel Polysiphonia gonatophora Kützing Polysiphonia gopnathensis Thivy & Sreenivasa Rao Polysiphonia gorgoniae Harvey Polysiphonia gracilis C. K. Tseng Polysiphonia grateloupeoides Noda Polysiphonia grevillei Harvey Polysiphonia griffithsiana Harvey Polysiphonia grisea Kützing Polysiphonia guadalupens Setchell & N. L. Gardner Polysiphonia guadalupensis Setchell & N. L. Gardner Polysiphonia guernisaci (P. Crouan & H. Crouan) J. Agardh Polysiphonia guernisacii (P. Crouan & H. Crouan) J. Agardh Polysiphonia gunniana Harvey Polysiphonia haematites Kützing Polysiphonia hakodatensis Yendo Polysiphonia hamulifera Kützing Polysiphonia hancockii E. Y. Dawson Polysiphonia hapalacantha Harvey Polysiphonia haplodasyae Womersley Polysiphonia harlandii Harvey Polysiphonia harveyi Bailey Polysiphonia hassleri W. R. Taylor Polysiphonia havanensis Montagne Polysiphonia havaniensis \N Polysiphonia hawaiiensis Hollenberg Polysiphonia hemisphaerica Areschoug Polysiphonia hendryi N. L. Gardner Polysiphonia heringii Harvey Polysiphonia herpa Hollenberg Polysiphonia heteroclada J. Agardh Polysiphonia hillebrandii Bornet Polysiphonia hirsuta (Roth) Wallroth Polysiphonia hirta J. Agardh Polysiphonia hispida \N Polysiphonia hochstetteriana O. C. Schmidt Polysiphonia homoia Setchell & N. L. Gardner Polysiphonia hookeri Harvey Polysiphonia howei Hollenberg Polysiphonia humilis Kützing Polysiphonia hypnoides Welwitsch ex J. Agardh Polysiphonia hystrix J.D.Hooker & Harvey Polysiphonia implexa J.D.Hooker & Harvey Polysiphonia impolita Zanardini Polysiphonia incompa De Notaris Polysiphonia incompta Harvey Polysiphonia inconspicua Reinsch Polysiphonia incurva Zanardini Polysiphonia indigena Hollenberg Polysiphonia infestans Harvey Polysiphonia inflata G. Martens Polysiphonia insidiosa (J. Agardh) P. Crouan & H. Crouan Polysiphonia insignis P. Crouan & H. Crouan Polysiphonia intricata (C. Agardh) J. Agardh Polysiphonia inversa Sonder Polysiphonia isogona Harvey Polysiphonia jacobii De Notaris Polysiphonia japonica Harvey Polysiphonia javanica G. Martens Polysiphonia johnstonii Setchell & N. L. Gardner Polysiphonia juncea Kützing Polysiphonia kampsaxii Borgesen Polysiphonia kappannae Sreenivasa Rao Polysiphonia kappannai Sreenivasa Rao Polysiphonia kapraunii B.Stuercke & D.W.Freshwater Polysiphonia kellneri Zanardini Polysiphonia kieliana Kaminski & Nizamuddin Polysiphonia kotschyana Grunow Polysiphonia kowiensis Stegenga, Bolton & R.J.Anderson Polysiphonia laevigata Kützing Polysiphonia lanosa (Linnaeus) Tandy Polysiphonia lasiorhiza Kützing Polysiphonia lasiotricha Kützing Polysiphonia latiovalis Noda Polysiphonia lawrenciana Harvey Polysiphonia laxa Kützing Polysiphonia laxiuscula Meneghini Polysiphonia lepadicola (Lyngbye) Sprengel Polysiphonia leptoclada (Montagne) Kützing Polysiphonia leptoclonia Zanardini ex De Toni Polysiphonia leptothrix Zanardini Polysiphonia leptura Kützing Polysiphonia letestui P.Dangeard Polysiphonia linocladia Kützing Polysiphonia lithophila Kützing Polysiphonia lobophoralis N.R.Mamoozadeh & D.W.Freshwater Polysiphonia longiarticulata Zanardini Polysiphonia longissima J. Agardh Polysiphonia lophoclados (Montagne) Kützing Polysiphonia lophura Kützing Polysiphonia lophuroides Kützing Polysiphonia lubrica (C. Agardh) Zanardini Polysiphonia lusitanica Montagne ex Kützing Polysiphonia lutensis Zanardini Polysiphonia luxurians (Agardh) par Polysiphonia lyallii J.D.Hooker & Harvey Polysiphonia lyngbyei Kützing Polysiphonia macounii Hollenberg Polysiphonia macra Harvey Polysiphonia macrarthra Zanardini Polysiphonia macrocarpa Harvey Polysiphonia macrocephala Zanardini Polysiphonia macroclonia Kützing Polysiphonia mallardiae (Harvey) Harvey Polysiphonia marchantae Setchell & N. L. Gardner Polysiphonia marrowii Harvey Polysiphonia martensiana Kützing Polysiphonia masonii Setchell & N. L. Gardner Polysiphonia megarthra Zanardini ex De Toni Polysiphonia melagonium Meneghini Polysiphonia melanochroa Kützing Polysiphonia meneghiniana De Notaris Polysiphonia micracantha Zanardini ex De Toni Polysiphonia micrantha Zanardini Polysiphonia microcarpa J.D.Hooker & Harvey Polysiphonia microdendron J. Agardh Polysiphonia miniata (C. Agardh) Kützing Polysiphonia minutissima Hollenberg Polysiphonia moestingii (Lyngbye) Sprengel Polysiphonia mollis J.D.Hooker & Harvey Polysiphonia monilifera J.D.Hooker & Harvey Polysiphonia monocarpa Montagne Polysiphonia montagnei De Notaris Polysiphonia morisiana J. Agardh Polysiphonia moritziana Sonder ex Kützing Polysiphonia morrowii Harvey Polysiphonia mottei Lauret Polysiphonia mucosa P. Crouan & H. Crouan Polysiphonia muelleriana J. Agardh Polysiphonia multicapsularis Zanardini Polysiphonia multifida Duby Polysiphonia mutabilis Harvey Polysiphonia myriococca Montagne Polysiphonia namibiensis Stegenga & Engeldow Polysiphonia nana Kützing Polysiphonia nathanielii Hollenberg Polysiphonia nebulosa Zanardini Polysiphonia neglecta Bornet Polysiphonia nemalionis Zanardini Polysiphonia nhatrangense Pham-Hoàng Hô Polysiphonia nhatrangensis Pham-Hoàng Hó Polysiphonia nigra (Hudson) Batters Polysiphonia nigrella P. Crouan & H. Crouan Polysiphonia nigrescens (Hudson) Greville ex Harvey Polysiphonia nigrita Sonder Polysiphonia nipponica Segi Polysiphonia nitens Meneghini Polysiphonia nizamuddinii Farooqui & Begum Polysiphonia nodifera Kützing Polysiphonia nodulosa J. Agardh Polysiphonia notarisii Meneghini Polysiphonia notoensis Segi Polysiphonia nova-angliae W. R. Taylor Polysiphonia novae-angliae W. R. Taylor Polysiphonia nuda N.R.Mamoozadeh & D.W.Freshwater Polysiphonia nutans Montagne Polysiphonia obscura (C. Agardh) J. Agardh Polysiphonia obsoleta Segi Polysiphonia ocellata Grateloup Polysiphonia ohmaensis Ohta Polysiphonia olneyi Harvey Polysiphonia opaca (C.Agardh) Moris & De Notaris Polysiphonia ophiocarpa Kützing Polysiphonia orbigniana Kützing Polysiphonia ornata J. Agardh Polysiphonia orthocarpa Rosenvinge Polysiphonia pacifica Hollenberg Polysiphonia paniculata Montagne Polysiphonia pantophloea Kützing Polysiphonia pappeana Kützing Polysiphonia paradoxa Thuret Polysiphonia parasitica (Hudson) Greville Polysiphonia parthasarathyae Sreenivasa Rao Polysiphonia parthasarathyi Sreenivasa Rao Polysiphonia parvula Suhr ex Kützing Polysiphonia patens (Dillwyn) Harvey Polysiphonia patersonis Sonder Polysiphonia patula Kützing Polysiphonia pauperula Kützing Polysiphonia pecten Areschoug Polysiphonia pecten-veneris Harvey Polysiphonia pectinata J.D.Hooker & Harvey Polysiphonia pectinella Harvey Polysiphonia penicillata (C. Agardh) Sprengel Polysiphonia pennata (C. Agardh) J. Agardh Polysiphonia pentamera Hollenberg Polysiphonia perforans Cormaci, G.Furnari, Pizzuto & Serio Polysiphonia periclados (C. Agardh) Endlicher Polysiphonia pernacola N. M. Adams Polysiphonia perpusilla J. Agardh Polysiphonia perreymondii J. Agardh Polysiphonia perriniae Womersley Polysiphonia peucedanoides (Bonnemaison) P. Crouan & H. Crouan Polysiphonia phleborhiza Kützing Polysiphonia physarthra (Kützing) Kützing Polysiphonia physartra Kützing Polysiphonia piligera Zanardini ex De Toni Polysiphonia pilosa (F.L.Naccari) G.Zanardini Polysiphonia pinnulata Kützing Polysiphonia platycarpa Borgesen Polysiphonia platyspira Kützing Polysiphonia plectocarpa C. W. Schneider Polysiphonia plumula J. Agardh Polysiphonia poko Hollenberg Polysiphonia polycarpa Kützing Polysiphonia polycephala Zanardini ex De Toni Polysiphonia polychotoma Kützing Polysiphonia polychroma G. Martens Polysiphonia polymorpha (Linnaeus) Duby Polysiphonia polyphora Kützing Polysiphonia polyphysa Kützing Polysiphonia polyrhiza Kützing Polysiphonia polyspora (C. Agardh) Montagne Polysiphonia porphyroides Kützing Polysiphonia porrecta Segi Polysiphonia profunda Hollenberg Polysiphonia propagulifera Womersley Polysiphonia prorepens Harvey Polysiphonia prostrata Harvey Polysiphonia pseudovillum Hollenberg Polysiphonia pulchella De Notaris Polysiphonia pulvinata (Roth) Sprengel Polysiphonia pungens Hollenberg Polysiphonia punicea Montagne Polysiphonia purpurascens Harvey Polysiphonia purpurata Zanardini ex De Toni Polysiphonia purpurea (C. Agardh) J. Agardh Polysiphonia purpureocoerulea Sonder Polysiphonia pycnocoma Kützing Polysiphonia pycnophloea Kützing Polysiphonia pygmaea Kützing Polysiphonia quadrata Hollenberg Polysiphonia radicans (Meneghini) J. Agardh Polysiphonia raineriana (Zanardini) Zanardini Polysiphonia ramellosa Kützing Polysiphonia ramentacea Harvey Polysiphonia ramulosa (C. Agardh) Sprengel Polysiphonia recurva (C. Agardh) Sprengel Polysiphonia regularis Kützing Polysiphonia repens Kützing Polysiphonia reptabunda (Suhr) Kützing Polysiphonia requienii Montagne ex Kützing Polysiphonia rhizoidea Meñez Polysiphonia rhododactyla Harvey Polysiphonia rhodomeloides Kützing Polysiphonia rhunensis Thuret Polysiphonia richardsonii Hooker ex Harvey Polysiphonia rigens (C.A.Agardh) G.Zanardini Polysiphonia rigidula Kützing Polysiphonia robusta Kützing Polysiphonia roeana Harvey Polysiphonia rosea Greville Polysiphonia roseola (C. Agardh) Fries Polysiphonia rostrata Sonder Polysiphonia rubrorhiza Hollenberg Polysiphonia ruchingeri (C. Agardh) Zanardini Polysiphonia rudis J.D.Hooker & Harvey Polysiphonia rufolanosa Harvey Polysiphonia rugulosa Kützing Polysiphonia rutilans Kützing Polysiphonia rytiphlaeoides J.D.Hooker & Harvey Polysiphonia rytiphloeoides J.D.Hooker & Harvey Polysiphonia saccorhiza (Collins & Hervey) Hollenberg Polysiphonia sadoensis Noda Polysiphonia sanctipetri Collins Polysiphonia sanguinea (C. Agardh) Zanardini Polysiphonia savatieri Hariot Polysiphonia saxicola G.Zanardini Polysiphonia schneideri B.Stuercke & D.W.Freshwater Polysiphonia schousboei Thuret Polysiphonia schuebeleri Foslie Polysiphonia scoparia Kützing Polysiphonia scopulorum Harvey Polysiphonia secunda (C. Agardh) Zanardini Polysiphonia secundata (Suhr) Kützing Polysiphonia senticosa Suhr ex Kützing Polysiphonia senticulosa Harvey Polysiphonia sentosa Kützing Polysiphonia sericea Hauck Polysiphonia serpens (Dufour) De Notaris ex Ardissone Polysiphonia sertularioides (Grateloup) J. Agardh Polysiphonia setacea Hollenberg Polysiphonia setigera Kützing Polysiphonia shepherdii Womersley Polysiphonia siamensis V.Martens Polysiphonia simplex Hollenberg Polysiphonia simplicifilum J. Agardh Polysiphonia simpliciuscula P. Crouan & H. Crouan Polysiphonia simulans Harvey Polysiphonia sinicola Setchell & N. L. Gardner Polysiphonia siretokensis Yamada & Tanaka Polysiphonia snyderae Kylin Polysiphonia solieri J. Agardh Polysiphonia solierii J. Agardh Polysiphonia sonorensis Hollenberg Polysiphonia souriei Ph. Feldmann Polysiphonia sp. Polysiphonia sparsa (Setchell) Hollenberg Polysiphonia sphacelarioides J. Agardh Polysiphonia sphaerocarpa Borgesen Polysiphonia sphaerospora Borgesen Polysiphonia spiculifera Zanardini ex Kützing Polysiphonia spinella C. Agardh Polysiphonia spinescens Montagne Polysiphonia spinifera Kützing Polysiphonia spinosa (C. Agardh) J. Agardh Polysiphonia spinosissima Harvey Polysiphonia spinulifera Reinsch Polysiphonia spinuligera Zanardini Polysiphonia spinulosa Greville Polysiphonia spiralis L. Batten Polysiphonia squarrosa Kützing Polysiphonia stangeri J. Agardh Polysiphonia stenocarpa Kützing Polysiphonia stichidiosa Funk Polysiphonia stictophlaea Kützing Polysiphonia stimpsonii Harvey Polysiphonia stricta (Dillwyn) Greville Polysiphonia strictioides (Lyngbye) Derb.& Sol. Polysiphonia strictissima J.D.Hooker & Harvey Polysiphonia strictoides (Lyngbye) Kützing Polysiphonia stuposa Zanardini ex Kützing Polysiphonia subadunca Kützing Polysiphonia subcontinua (C. Agardh) J. Agardh Polysiphonia subcontorta Peck Polysiphonia subtilis De Notaris Polysiphonia subtilissima Montagne Polysiphonia subulata (Ducluzeau) Kützing Polysiphonia subulifera (C. Agardh) Harvey Polysiphonia succulenta Harvey Polysiphonia sulcata Rudolphi Polysiphonia sulivaniae J.D.Hooker & Harvey Polysiphonia tapinocarpa Suringar Polysiphonia tasmanica (Sonder) J. Agardh Polysiphonia taylorii Hollenberg ex Williams Polysiphonia teges Womersley Polysiphonia tenebrosa Harvey Polysiphonia tenella (C.Agardh) Moris & De Notaris Polysiphonia tenera Harvey Polysiphonia tenerrima Kützing Polysiphonia tenuis Hollenberg Polysiphonia tenuissima De Notaris Polysiphonia tenuistriata J.D.Hooker & Harvey Polysiphonia tepida Hollenberg Polysiphonia teradomariensis M.Noda Polysiphonia thuyoides Harvey Polysiphonia thwaitesii Harvey ex J. Agardh Polysiphonia thyrsigera J. Agardh Polysiphonia tinctoria De Notaris Polysiphonia tokidae Segi Polysiphonia tongatensis Harvey ex Kützing Polysiphonia trichoclada Kützing Polysiphonia trichodes Kützing Polysiphonia tripinnata J. Agardh Polysiphonia triton P. C. Silva Polysiphonia tsudana Hollenberg Polysiphonia tuberosa Hollenberg Polysiphonia turgidula P. Crouan & H. Crouan Polysiphonia tuticorinensis Borgesen Polysiphonia ulex Derbes & Solier Polysiphonia umbellifera Kützing Polysiphonia uncinata Kützing Polysiphonia unguiformis Borgesen Polysiphonia upolensis Grunow Polysiphonia urbana Harvey Polysiphonia urbanoides Levring Polysiphonia urceolata (Lightfoot ex Dillwyn) Greville Polysiphonia urceoleta \N Polysiphonia utricularis Zanardini Polysiphonia vaga Kützing Polysiphonia vagabunda Harvey Polysiphonia valida J. Agardh Polysiphonia variabilis Harvey Polysiphonia variegata (C. Agardh) Zanardini Polysiphonia veneta Zanardini Polysiphonia versicolor J.D.Hooker & Harvey Polysiphonia verticillata Harvey Polysiphonia vestita J. Agardh Polysiphonia victoriae (Harvey) Kützing Polysiphonia vidovichii Meneghini ex Kützing Polysiphonia villifera (C. Agardh) Endlicher Polysiphonia villum J. Agardh Polysiphonia vinosa Kützing Polysiphonia violacea (Roth) Sprengel Polysiphonia violascens Kützing Polysiphonia virens Kützing Polysiphonia virgata (C. Agardh) Sprengel Polysiphonia vulpina De Notaris Polysiphonia woodii Harvey Polysiphonia wulfenii (Roth) J. Agardh Polysiphonia yendoi Segi Polysiphonia yokoskensis Hariot Polysiphonia yonakuniensis Segi Polysiphonia zanardinii Schiffner Polysiphonia zostericola Lucas
Remarks	Type Species: P. urceolata (L. Dillwyn) R. Greville (Conferva urceolata L. Dillwyn) (typ. cons.)
Citation	1823 [1 Dec 1823] Scott. Crypt. Fl. 2(fasc. 18): ad. t. 90