Harvard University Herbaria & Libraries

Index of Botanical Specimens

Name	Potamogeton
Authorship
Rank	Genus
NomenclaturalStatus	NomLeg
Placed in	Potamogetonaceae
Contains	Potamogeton ×absconditus Z. Kaplan, Fehrer & Hellq. Potamogeton absconditus Z.Kaplan, Fehrer & Hellq. Potamogeton acifolius Ma Potamogeton acutifolius Link Potamogeton acutus (G.Fisch.) Papch. Potamogeton ×aemulans Z. Kaplan, Hellq. & Fehrer Potamogeton aemulans Z.Kaplan, Hellq. & Fehrer Potamogeton ×aemulus Z. Kaplan Potamogeton affinis Boenn. ex Cham. & Schlecht. Potamogeton alatofructus A.Benn. Potamogeton alatus Koidz. Potamogeton alpinonatans F.W.Schultz Potamogeton alpinus Balbis Potamogeton amblyophyllus C.A.Mey. Potamogeton americanus Chamisso & Schlechtendal Potamogeton amplexicaulis Kar. Potamogeton amplifolius Tuckerman Potamogeton anadyrensis V.N.Vassil. Potamogeton anglicus Hagstr. Potamogeton anguillanus Koidz. Potamogeton angustatus Wallm. Potamogeton angustifolius Berchtold & J. Presl Potamogeton angustissimus Kunth Potamogeton annulatus Bellardi Potamogeton antaicus Hagstr. Potamogeton apertus Miki Potamogeton apicalis Hagstr. Potamogeton applanatus Y.D.Chen Potamogeton argutulus Hagstr. Potamogeton aschersonii A. Bennett Potamogeton asiaticus A. Bennett Potamogeton asplundi Horn Potamogeton assidens Z.Kaplan, Zalewska-Gal. & Ronikier Potamogeton attenuatus Hagstr. Potamogeton augustani Bellardi Potamogeton augustanus Balb. Potamogeton aulacophyllus K.Schum. Potamogeton australiensis A.Benn. Potamogeton australis F.Phil. ex Phil. Potamogeton austriacus Gand. Potamogeton austrosibiricus Kashina Potamogeton babingtonii A.Benn. Potamogeton badiovirens Hagstr. Potamogeton badioviridis Hagstr. Potamogeton badius Hagstr. Potamogeton baenitzii Gand. Potamogeton balatonicus (Gams) Soó Potamogeton bambergensis G.Fisch. Potamogeton belorussicus D.Dubovik Potamogeton bennettii Fryer Potamogeton berchtoldii Fieber Potamogeton berteroanus Philippi Potamogeton besseri Steud. Potamogeton bicupulatus Fernald Potamogeton biformis Hagstr. Potamogeton biformoides Papch. Potamogeton billotii F.W.Schultz Potamogeton billupsii Fryer Potamogeton biwaensis Miki Potamogeton bottnicus Hagstr. Potamogeton bracteatus Y.D.Chen Potamogeton brasiliensis (A.Benn.) A.Benn. Potamogeton bunyonyiensis Denny & Lye Potamogeton bupleuroides Fernald Potamogeton burkartii Horn ex Tur Potamogeton burtonii E.Hopkins ex Syme Potamogeton cadburyae Dandy & G.Taylor Potamogeton caespitosus Rchb.f. Potamogeton californicus (Morong) Piper Potamogeton canariensis Link Potamogeton capensis Scheele ex A.Benn. Potamogeton capillaceus Poiret Potamogeton caricifolius Willd. ex Schult. Potamogeton carinatus Kupffer Potamogeton caspargi Kohts Potamogeton casparii Weyl Potamogeton casparyi Kohts Potamogeton caudatus Seidl ex Opiz Potamogeton cayugensis (Wiegand) Hagstr. Potamogeton cespitosus Rchb.f. Potamogeton chakassiensis (Kaschina) Volobaev Potamogeton chamissoi A.Benn. Potamogeton champlainii A.Benn. Potamogeton ×champlainii A. Bennett Potamogeton cheesemanii A.Benn. Potamogeton chongyangensis W. X. Wang Potamogeton chongyongensis W.X.Wang Potamogeton clandestinus A.A.Bobrov, Zalewska-Gal. & Chemeris Potamogeton claytonii Tuckerman Potamogeton clystocarpus Fernald Potamogeton cognatus Asch. & Graebn. Potamogeton coloratus Hornem. Potamogeton columbianus Suksdorf Potamogeton complanatus Willd. Potamogeton compressus Linnaeus Potamogeton concilius A.Benn. Potamogeton concillus A.Benn. Potamogeton concinnitus A.Benn. Potamogeton condylocarpus Tausch Potamogeton confervoides Reichenbach Potamogeton confinis Hagstr. Potamogeton conjungens Hagstr. Potamogeton contortus Desf. Potamogeton cooperi (Fryer) Fryer Potamogeton coriaceus (Mert. & W.D.J.Koch) Fryer Potamogeton corniculatus Schur Potamogeton cornutus J.Presl & C.Presl Potamogeton corsicus Rouy Potamogeton crassifolius Fryer Potamogeton crassipes Kit. ex Cham. & Schlecht. Potamogeton crenulatus D.Don Potamogeton crispatus Wallman ex Rchb. Potamogeton crispus Linnaeus Potamogeton cristatus Regel & Maack Potamogeton curtisii Morong Potamogeton curvatus A.Benn. Potamogeton curvifolius Hartm. Potamogeton cuspidatus Schrad. ex Mert. & W.D.J.Koch Potamogeton cymatodes Asch. & Graebn. Potamogeton cymbifolius G.Fisch. Potamogeton cyprifolius Lowe Potamogeton danicus Gand. Potamogeton decipiens Nolte Potamogeton delavayi A.Benn. Potamogeton delicatulus Bertol. Potamogeton deminutus Hagstr. Potamogeton densus Schwein. ex L.C.Beck Potamogeton dentatus Hagstr. Potamogeton denticulatus Mohl & Schlecht. Potamogeton diffusus Herter Potamogeton digynus Wall. Potamogeton dimorphoides Hagstr. Potamogeton dimorphus Raf. Potamogeton dissimilis A.Benn. Potamogeton distachyus Bellardi Potamogeton distinctus A. Bennett Potamogeton divaricatus Wolfg. ex Schult. Potamogeton diversifolius Rafinesque Potamogeton drepanocladioides Horn Potamogeton drepanoides Z.Kaplan Potamogeton drucei Fryer Potamogeton drummondii Benth. Potamogeton drupaceus O.Lang Potamogeton dualis Hagstr. Potamogeton dubius E.H.L.Krause Potamogeton dunicola Tur Potamogeton elegans Wall. Potamogeton elipticus Larrañaga Potamogeton epihydrus Rafinesque Potamogeton erhaiensis Y.D.Chen Potamogeton exiguus Hagstr. Potamogeton exilis Z.Kaplan & Uotila Potamogeton exstipulatus Willd. ex Schult. Potamogeton falcatus Fryer Potamogeton fallax Asch. & Graebn. Potamogeton fasciculatus Wolfg. Potamogeton faurei (A.Benn.) Miki Potamogeton fauriei (A.Benn.) Miki Potamogeton ×faxoni Morong Potamogeton faxonii Morong Potamogeton ×faxonii Morong Potamogeton fennicus Hagstr. Potamogeton ferrugineus Hagström Potamogeton fibrillosus Fernald Potamogeton fibrosus Hagstr. Potamogeton fieberi Rouy Potamogeton filicaulis Schur Potamogeton filifolius Phil. Potamogeton filiformis Persoon Potamogeton flabellatus Bab. Potamogeton flexicaulis Dethard. Potamogeton flexuosus Schleich. Potamogeton floridanus Small Potamogeton ×fluitans Roth Potamogeton fluitans Roth Potamogeton fluviatilis Roem. & Schult. Potamogeton foliorum Raf. Potamogeton foliosus Rafinesque Potamogeton fontigenus Y.H.Guo, X.Z.Sun & H.Q.Wang Potamogeton fragillimus Hagström Potamogeton franchetii A.Benn. Potamogeton franconicus G.Fisch. Potamogeton friesii Ruprecht Potamogeton fryeri A.Benn. Potamogeton fulvus Riddell Potamogeton furcatus Hagstr. Potamogeton gaudichaudii Cham. & Schltdl. Potamogeton gayi A.Benn. Potamogeton gemmiparus J. W. Robbins ex Morong Potamogeton gessnacensis G.Fisch. Potamogeton gramineus Linnaeus Potamogeton graminifolius H. & J.Groves Potamogeton griffithii A.Benn. Potamogeton grisebachii Heuff. Potamogeton groenlandicus Hagstr. Potamogeton grovesii Dandy & G.Taylor Potamogeton hagstroemii A.Bennett Potamogeton hagstromii A. Bennett Potamogeton harzii G.Fisch. Potamogeton haynesii Hellquist & G. E. Crow Potamogeton ×haynesii Hellquist & G. E. Crow Potamogeton heidenreichii Asch. & Graebn. Potamogeton helodes Dumort. Potamogeton helveticus (G.Fisch.) E.Baumann Potamogeton henningii A.Benn. Potamogeton henryi Fernald Potamogeton heslop-harrisonii W.A.Clark Potamogeton heterocaulis Z.S.Diao Potamogeton heterophyllus Schreber Potamogeton hibernicus (Hagstr.) Druce Potamogeton hillii Morong Potamogeton hindostanicus Hagstr. Potamogeton hoggarensis Dandy Potamogeton hohenackeri Gand. Potamogeton hornemannii E.Mey. Potamogeton hubeiensis W.X.Wang, X.Z.Sun & H.Q.Wang Potamogeton huillensis Welw. ex Schinz Potamogeton hungaricus Gand. Potamogeton hybridus Michaux Potamogeton illinoensis Morong Potamogeton inbaensis Kadono Potamogeton indicus Roth ex Roem. & Schult. Potamogeton innominatus Tiselius ex Almq. Potamogeton insulanus Hagström Potamogeton interior Rydb. Potamogeton intermedius Tiselius ex Fryer Potamogeton interruptus Kit. Potamogeton intortusifolius J.B.He, L.Y.Zhou & H.Q.Wang Potamogeton intramongolicus Ma Potamogeton involutus (Fryer) H.Groves & J.Groves Potamogeton iriomotensis Masam. Potamogeton iwatensis Makino Potamogeton jacobsii Z.Kaplan, Fehrer & Hellq. Potamogeton japonicus Franch. & Sav. Potamogeton javanicus Hasskarl Potamogeton jeholensis Kitag. Potamogeton johannis Hesl.-Harr. Potamogeton juncifolius A.Kern. Potamogeton jutlandicus Zalewska-Gal. Potamogeton juzepczukii P.I.Dorof. & Tzvelev Potamogeton ×kamogawaensis Miki Potamogeton kaplanii Kottaim. Potamogeton kashiensis Z.S.Diao Potamogeton khuzestanicus S.Abbasi, Afsharz. & Dinarvand Potamogeton kirkii Syme Potamogeton kochii F.W.Schultz Potamogeton kupfferii A.Benn. Potamogeton kupffieri A.Benn. Potamogeton kyushuensis Kadono & Wiegleb Potamogeton lactucaceum Montandon Potamogeton lacunatifolius Papch. Potamogeton lacunatus Hagstr. Potamogeton lacustris (Pearsall & Pearsall f.) Druce Potamogeton lanceolatifolius (Tiselius) C.D.Preston Potamogeton lanceolatus Smith Potamogeton lancifolius Roth ex Steud. Potamogeton lanciformis Roem. & Schult. Potamogeton lateralis Morong Potamogeton laticaule Wahlenb. Potamogeton laticaulis Wahlenb. Potamogeton latifolius (J. W. Robbins) Morong Potamogeton latior Holub Potamogeton leptanthus Y.D.Chen Potamogeton leptocephalus Koidz. Potamogeton leptophyllus Gand. Potamogeton leschenaultii Cham. & Schltdl. Potamogeton liebmannii Buchenau Potamogeton ligulatus Hagstr. Potamogeton liljebladii Wallman ex Rchb. Potamogeton limosellifolius Maximowicz ex Korshinsky Potamogeton lindenbergii Lehm. ex Graebn. Potamogeton linearis Larrañaga Potamogeton linguatus Hagstr. Potamogeton lintonii Fryer Potamogeton lithuanicus Gorski ex Rchb. Potamogeton ×lithuanicus Gorski ex Ascherson & Graebner Potamogeton livingstonei A.Benn. Potamogeton loculosus Hagström Potamogeton loeselii Honck. Potamogeton lonchites Tuckerman Potamogeton longepedunculatus Mérat Potamogeton longifolius Bab. Potamogeton longiligulatus Fernald Potamogeton longipedunculatus Mérat Potamogeton longipetiolatus E.G.Camus Potamogeton lucens Linnaeus Potamogeton lucidus Salisb. Potamogeton lundii C.Richt Potamogeton luxurians Z.Kaplan Potamogeton maackianus A.Benn. Potamogeton machianus Lowe ex Graebn. Potamogeton macrocarpus Dobrocz. Potamogeton macrophylloides Hagstr. Potamogeton macrophyllus Wolfg. ex Schult. Potamogeton macrorrhynchus Gand. Potamogeton macvicarii A.Benn. Potamogeton maemetsiae Zalewska-Gal. & Ronikier Potamogeton magellanicus (Hagstr.) Dusén Potamogeton major Morong ex MacMill. Potamogeton malaianus Miq. Potamogeton malainus Miquel Potamogeton manchuriensis A.Benn. Potamogeton mandschuriensis (A.Benn.) A.Benn. Potamogeton manschuriensis (Bennell) Bennell Potamogeton marianensis Cham. & Schltdl. Potamogeton mariensis Papch. Potamogeton marinus Linn Potamogeton maritima L. Potamogeton maritimus Pohl Potamogeton mascarensis Cham. & Schltdl. Potamogeton maximus Roehl. ex Steud. Potamogeton meinshausenii Juz. Potamogeton ×meinshausenii Juzepczuk Potamogeton membranaceus Hagstr. Potamogeton methyensis (A.Benn.) A.Benn. Potamogeton mexicanus A.Benn. Potamogeton microcarpus Boiss. & Reut. Potamogeton microstachys Wolfgang Potamogeton miduhikimo Makino ex A.Benn. Potamogeton mignelensis Dandy Potamogeton miguelensis Dandy Potamogeton millardii Hesl.-Harr. Potamogeton miniatus Y.D.Chen Potamogeton minutissimus Mert. & W.D.J.Koch Potamogeton ×mirabilis Z. Kaplan, Hellq. & Fehrer Potamogeton mirabilis Z.Kaplan, Hellq. & Fehrer Potamogeton miyakezimensis Honda Potamogeton miyakozimensis Honda Potamogeton mizuhikimo Makino Potamogeton moniliformis H. St. John Potamogeton monoginus Miki Potamogeton monogynus J.Gay Potamogeton montanensis Gand. Potamogeton montanus C.Presl Potamogeton montevidensis A.Benn. Potamogeton montezumawellensis Ricketson, G.M.Ricketson & Greenawalt Potamogeton monticola Schwein. ex A.Benn. Potamogeton morongii A.Benn. Potamogeton mucronatus Nyman Potamogeton mucronulatus (G.Fisch.) Papch. Potamogeton muricatus Hagstr. Potamogeton mysticus Morong Potamogeton ×mysticus Morong Potamogeton nanus Y.D.Chen Potamogeton natans Linnaeus Potamogeton navicularis Hagstr. Potamogeton nericius Hagstr. Potamogeton nericus Hagström Potamogeton nerviger Wolfg. Potamogeton nervigerus Wolfg. Potamogeton niagarensis Tuckerman Potamogeton nigrescens Fr. Potamogeton nipponicus Makino ex A.Benn. Potamogeton nitens Weber Potamogeton ×nitens Weber Potamogeton nodosus Poiret Potamogeton noltei G.Fisch. Potamogeton ×noltei G. Fischer Potamogeton nomotoensis Kadono & T.Nog. Potamogeton notarisii Gand. Potamogeton numasakianus A.Benn. Potamogeton nuttallii Cham. & Schltdl. Potamogeton oakesianus J. W. Robbins Potamogeton oblongifolius J.R.Forst. Potamogeton oblongorufescens Schultz Potamogeton oblongus Viviani Potamogeton obrutus Alph.Wood Potamogeton obscurus DC. Potamogeton obtusifolius Mertens & W. D. J. Koch Potamogeton obtusus Ducros ex Gaudin Potamogeton occidentalis Sieber ex Cham. & Schltdl. Potamogeton ochreatus Raoul Potamogeton octandrus Poiret Potamogeton odontocarpus Gand. Potamogeton oederi G.Mey. Potamogeton ogdenii Hellquist & Hilton Potamogeton olivaceus Baagøe ex G.Fisch. Potamogeton oppositifolius DC. Potamogeton ×orientalis Hagström Potamogeton orientalis Hagstr. Potamogeton orthorrhynchus Gand. Potamogeton owaihiensis Cham. & Schltdl. Potamogeton oxyphyllus Miquel Potamogeton pallidior Gand. Potamogeton paludosus Bory ex Cham. & Schltdl. Potamogeton palustris Teesd. Potamogeton pamiricus Baagøe ex Paulsen Potamogeton panoemitanus Biv. Potamogeton panomitanus Biv. Potamogeton panormitanus Biv. Potamogeton papuanicus Wiegleb Potamogeton paramoanus Haynes & Holm-Nielsen Potamogeton parmatus Hagstr. Potamogeton parnassifolius Schrad. ex Roem. & Schult. Potamogeton parnassiifolius Schrad. ex Mert. & W.D.J.Koch Potamogeton parvifolius Buchenau Potamogeton pauciflorus Pursh Potamogeton paucifolius Opiz Potamogeton pectinatus Linnaeus Potamogeton pedersenii Tur Potamogeton pemeglectus Gand. Potamogeton pensylvanicum Willdenow Potamogeton pensylvanicus Willd. ex Cham. & Schltdl. Potamogeton gramineus ×perfoliatus Linnaeus Potamogeton perfoliatus Linnaeus Potamogeton perneglectus Gand. Potamogeton ×perplexus A. Bennett Potamogeton perpygmaeus Hagstr. ex Druce Potamogeton peruviana C.Presl Potamogeton peruvianus Presl ex A.Benn. Potamogeton perversus A.Benn. Potamogeton petiolatus Wolfg. ex Schult. Potamogeton phialae Post Potamogeton philippinensis A.Benn. Potamogeton pinnatum Walter Potamogeton plantagineus Du Croz Potamogeton plantago Batard Potamogeton ×pleiophyllus Hagström Potamogeton pleiophyllus Hagstr. Potamogeton polygonifolius Pourr. Potamogeton polygonus Cham. Potamogeton porcatus Muhl. Potamogeton porrigens Hagstr. Potamogeton porsildiorum Fernald Potamogeton porteri Fernald Potamogeton praelongus Wulfen Potamogeton preussii A.Benn. Potamogeton promontoricus Hagstr. Potamogeton proteus Cham. & Schltdl. Potamogeton prussicus Hagstr. Potamogeton pseudofriesii Dandy & G.Taylor Potamogeton pseudolacunatus Papch. Potamogeton pseudolongifolius Papch. Potamogeton pseudolucens Hagstr. Potamogeton pseudopolygonus Hagstr. Potamogeton pseudosarmaticus Papch. Potamogeton pseudozizii Hagstr. Potamogeton pulchelliformis Hagstr. Potamogeton pulcher Tuckerman Potamogeton pumilum Nutt. ex A.Benn. Potamogeton pumilus Wolfg. ex Schult. Potamogeton punense A.Galán Potamogeton punensis A.Galán Potamogeton purpurascens Seidl ex J.Presl & C.Presl Potamogeton purshianus Morong ex MacMill. Potamogeton purshii Tuckerman ex Jennison Potamogeton pusilliformis Fisch. Potamogeton pusillus Linnaeus Potamogeton pycnostachys Kihlm. Potamogeton pycnostagus Kihlm. Potamogeton quinquenervius Hagstr. Potamogeton raunkiaeri G.Fisch. Potamogeton rectifolius A.Benn. Potamogeton ×rectifolius A. Bennett Potamogeton recurvatus Hagstr. Potamogeton reduncus Hagstr. Potamogeton reflexus A.Benn. Potamogeton reichenbachii M.Loehr ex Beurl. Potamogeton reniacoensis Sparre Potamogeton repens Hagstr. Potamogeton reptans Humn. Potamogeton richardii Solms Potamogeton richardsonii (A. Bennett) Rydberg Potamogeton rigidus Wolfg. Potamogeton ripensis Baagøe Potamogeton rivularis Gillot Potamogeton robbinsii Oakes Potamogeton rostratus Hagstr. Potamogeton rothii A.Benn. ex G.Fisch. Potamogeton rotundatus Hagstr. Potamogeton rotundifolius Schultz Potamogeton roxburghianus Schult. & Schult.f. Potamogeton roxburghii F.Dietr. Potamogeton rubricans Gand. Potamogeton rubrinaevus Gand. Potamogeton rufescens Schrader Potamogeton rufescentoides H.Lév. Potamogeton rugelii A.Benn. Potamogeton ×russeoli B. Boivin Potamogeton rutilus Wolfg. Potamogeton sachalinense Leveille Potamogeton sachalinensis (H.Lév.) H.Lév. Potamogeton salicifolius Wolfg. Potamogeton ×salicifolius Wolfgang Potamogeton samariformis Hagstr. Potamogeton sarmaticus Mäemets Potamogeton saxonicus Hagstr. Potamogeton schreberi G.Fisch. Potamogeton schweinfurthii A.Benn. Potamogeton sclerocarpus K.Schum. Potamogeton scoliophyllus Hagström Potamogeton seemenii Asch. & Graebn. Potamogeton semicoloratus A.Benn. Potamogeton semifructus A.Benn. ex Asch. & Graebn. Potamogeton semipellucidus W.D.J.Koch & Ziz Potamogeton serotinus W.D.J.Koch Potamogeton serratus Roth Potamogeton serrulifer Z.Kaplan Potamogeton sessilifolius Hagstr. Potamogeton setaceus Tausch Potamogeton sibiricus A. Bennett Potamogeton similis A.Benn. Potamogeton sinicus Migo Potamogeton skvortsovii Klinkova Potamogeton solomonensis G.Wiegleb Potamogeton sp. Potamogeton sparganiifolius Laest. ex Fr. Potamogeton spathaeformis Tuck. ex A.Gray Potamogeton spathiformis Tuckerman ex A. Gray Potamogeton spathulaeformis Morong Potamogeton spathulatus Schrad. ex W.D.J.Koch & Ziz Potamogeton ×spathuliformis (J. W. Robbins) Morong Potamogeton spathuliformis (J.W.Robbins) Morong Potamogeton spirilliformis Hagström Potamogeton spirillus Tuckerman Potamogeton spoliatus Hagstr. Potamogeton stagnorum Hagstr. Potamogeton stenostachys K.Schum. Potamogeton steriliformis Hagstr. Potamogeton sterilis Hagstr. Potamogeton striatus Ruiz & Pavon Potamogeton strictifolius A. Bennett Potamogeton strictus Phil. Potamogeton sturrockii A.Benn. Potamogeton stylatus Hagstr. Potamogeton subdentatus Hagström Potamogeton subflavus Loret & Barrandon Potamogeton subfuscus A.Benn. Potamogeton subjavanicus Hagstr. Potamogeton subnitens Hagstr. Potamogeton ×subnitens Hagström Potamogeton suboblongus Hagstr. Potamogeton subobtusus Hagstr. Potamogeton ×subobtusus Hagström Potamogeton subretusus Hagstr. Potamogeton subrufus Hagstr. Potamogeton ×subrufus Hagström Potamogeton subsessilifolius E.G.Camus Potamogeton subsessilis Hagstr. Potamogeton ×subsessilis Hagström Potamogeton subsibericus Hagstr. Potamogeton subsibiricus Hagstr. Potamogeton subtrichodes Schur Potamogeton sudermanicus Hagstr. Potamogeton suecicus K.Richt. Potamogeton sulcatus A.Benn. Potamogeton sumatranus Miq. Potamogeton syriacus Cham. & Schltdl. Potamogeton tataricus Less. Potamogeton teganumensis (Makino) Makino Potamogeton tennesseensis Fernald Potamogeton tenuicaulis F.Muell. Potamogeton tenuifolius Rafinesque Potamogeton tenuinervis E.G.Camus Potamogeton tenuissimus (Mert. & W.D.J.Koch) Rchb. Potamogeton tepperi A.Benn. Potamogeton thomasii A.Benn. Potamogeton thunbergii Cham. & Schltdl. Potamogeton tiselii K.Richt. Potamogeton tonkinensis E.G.Camus Potamogeton torquatus Koidz. Potamogeton torssanderi (Tiselius) Dörfl. Potamogeton torssandrii (Tiselius) Dörfl. Potamogeton tosaensis Kadono, Horii & T.Yaman. Potamogeton tretocarpus Maxim. ex A.Benn. Potamogeton tricarinatus F.Muell. & A.Benn. Potamogeton trichodes Cham. & Schltdl. Potamogeton trichoides Cham. & Schltdl. Potamogeton tricostatus Wallr. Potamogeton trinervius G.Fisch. Potamogeton tuberculatus Ten. & Guss. Potamogeton tuberosus Roxb. Potamogeton tubulatus Hagstr. Potamogeton tuckermanii J. W. Robbins ex A. Gray Potamogeton turionifer Hagström Potamogeton ulei K.Schum. Potamogeton uliginosus Boenn. ex Cham. & Schlecht. Potamogeton undulatus Wolfg. Potamogeton upsaliensis Tiselius Potamogeton uruguayensis A.Benn. & Graebn. Potamogeton vaginalis J. Fischer Potamogeton vaginans (Bojer ex A.Benn.) Hagstr. Potamogeton vaginatus Turcz. Potamogeton vaillantii Roem. & Schult. Potamogeton varians Morong ex Fryer Potamogeton variifolius Thore Potamogeton vaseyi J. W. Robbins Potamogeton venosus A.Benn. Potamogeton venustus Baagøe Potamogeton ×vepsicus A. A. Bobrov & Chemeris Potamogeton ×versicolor Z. Kaplan, Hellq. & Fehrer Potamogeton versicolor Z.Kaplan, Hellq. & Fehrer Potamogeton verticillatum (L.) Walter Potamogeton volhynicus Besser ex Roem. & Schult. Potamogeton wolfgangii Kihlm. Potamogeton wrightii Morong Potamogeton xzizii W.D.J.Koch ex Roth Potamogeton yamagataensis Kadono & Wiegleb Potamogeton zetterstedtii Wallman Potamogeton zizii W.D.J.Koch ex Roth Potamogeton ziziiformis Hagstr. Potamogeton zosteraceus Bab. Potamogeton zosteraefolius Schumach. Potamogeton zosterifolius Schumach. Potamogeton zosteriformis Fernald Potamogeton zosterophyllus Dumort.
Holdings	10 Specimens held in the Harvard University Herbaria identified as Potamogeton
Identification made in	[no date] (9), 1942 (1)