695 



POTAMOOETOXACEAE : POTAMOGETON. 



696 



iHtft. NvcM 3-4 mm. longae, 2-S-3 mm. latw, (ntcnlum oowpicne 

 •XHioc-utiooe comiintap, w-mper ruU-«ce»tc**, imueo pro rata vrtmo. 



Habitat in rtpubiiate Arijmtinae prov. Cmh'bu in Rio de Salmcata: 

 Hirronymns w. 404; jyrope CucapUht: ithm n. 826; prope In^ Penan : 

 lorenti n. 23a; Birnmymu. /<- J54; in prov. Jujny in lagma prope 

 mmtm iyniromem in Qtubmda do IJumayuacn : lormtz d Binompmis 

 «, 729; if! prov. Umim Aireit ad Napostu chira: Loreiitz n 218; in 

 Vmrzurlm»i» diiiimi^ layu>.a propr. Ynlmrlu: Gollmtr , in Lagnna rallis 

 ^Arayuii: IlumUdt; iu ditiont Vfruriana ad Alhs do Toledo alt. 15500 

 ptd : Mtym; in diti-jnt Chilnm prop>- ton Pa ton : Gay; in dexcrfo Ata- 

 cumam: HUippi; ftupe Santimja d in lam Bndi Araucano: idem; 

 praeterta in orb< ioto lute divulyitita. 



Om. Ilaec sp«ei« Utter can militan* qnae di^tril.utione viisia anpra 

 orheni toUim t.TT;inim >;-:\n(loi\t. non soltim !n Europii ad eoiumuucs per- 

 lin*-!, iwd •tlum In Ameiicii a MWttw CaniMlerwi prohiihililer usqae ad 

 rx(r.Mn;i AntprlttwaniitraHjt vijtet. In Africa u littoril.iw septentrionalibus 

 MqM 1^ trrm.4 CapenaM inveiitn, Aaiaui IVro totain , iustilis Malayuuis 

 fottftB «wpti», inha»»itftt, et in Anntraliac coiitiiienlf ut iii insulis liaud 

 fruntra *inaentiir. Ut jam in deacriptioiic iiiuuui, l-iiituiio Uiiiiiiiuiiim 

 Intcrdam miro modo tn eodem upeciiuiuc vurial, iioo miana njagiiitiido 

 nucnm hiuc iiid« aubtarialulem «« pruelwt. Ex luatcvia umpUssima difle- 

 nntiuA KonataotM ad spcctm cuiMtitticiidii^ apUift niiii icpcrirc jintiii, ita 

 nt prartuleriiu «p«cien In tuto ailiiritl>nn«' putiii.i qtiatii rarn in vaiictatf.s 

 (Hiyregar*. I'oUiuiwjctuncm mmiiitm h., P. Jlabdlntnin \V.\h., \mw. ym 

 iipctivim?! pn»priij» rnn-ut« tu , <[u;iiimitiun non (nmuim rertns snni , an in 

 fuUini r* Ttni mb \\m titnlti ron>'<Tvrnda tTiirit nl P. htriatua R. et Pav. 

 et t.iri'lfrti P. antarophjllm K. Sch. Ad Imnir usipio diem hand 

 HMfflt irrilf-r rontlantinni dHUfartfTiini nticiitii iuir-rnrr.H invf-Mtigaverunt : K 

 trirhmdrn (')iam. f. ft uota* offrrt, iiiiat* vix (idem nd illam injirinnt. 



9. POTAMOGETONSTKIATUSRuiz et Pav. naulibus 

 ex anetoiibu^i compIaiuUi£», sunteiitia cI.Chamissoi aiiteiu tereti- 

 has 9nb prelo compiessis elnngaiis piuice ranmsis stiiniis; 

 foliU coafuiiiiibu.s alternifi, siiiniiiis taiitiini infra influiesceatiHS 

 spnrie oppositis ptns minns anj^nste linearibus, inferioribup 

 ..,^.pius niulto latioribus plaiiis lasi vajjinantibus supra banc 

 vix angnsTntis npioc amtis, trinerviis, iif t vis laleialibiis margine 

 piuximis; ligula teiitviiraa obloiigu-lineari aculiascula vel 

 obtnsa mox pntrediiifi aft'eota evancsci'tiie ; s(iiiauiuli:> intva- 

 vagiualibus mullKurinibius vuljfo laiiu>culis liinis; inflnrescentia 

 plorifloni rontigna Vf I plus minus intennpta poihiiiculu validius- 

 culo ^upynie .subincTassato, post aiitliesin recto mediocri siiffalta; 

 perigoiiii pbyllis snbrbombris, snpru uiiguen) cuciiltatis; antheris 

 uou apkulati.s qnam priora subdnpio brevioribus; ovariis semi- 

 nvatis comi'lunatis, stigmate capitate; mice oblique elliptica, 

 d©wo rotuiulato crassiore absque carinis, lateribns convexis. 

 naoco rrassinsrnlo suberoso, ro>tro rotuudalo-capitato. 



Totamogdm siriatus Eaig et PavJ. Fl. Perm. I. 70. 

 1. 106. Jig. 6 ; Poir. in Encijcl XII 534; Chamim ^ SchhclUend. ! 

 in Linmea IL 168. L 4, fig, 4; Krnth! Enum. pi III 135. 



Cavi-m tnfeniaaimplicesdenudati, superne parce ramosi, inleniodia 

 »«rtl» 10-14, ,i.p«riora 3-6 cm. longa, ca. 1 mm. di.metro flavido- 

 » ridia V.I -nnorea. V^a.SA foUornm 1-2 cm. longa, artificialit.r ex- 

 planata 5-7 mm. I.ta ad mrdium vihdia margioihus tenerrima hy«1ina- 

 i.m«i.A 9-11 mm. longn. prior.,., fere latitudiue aequanU- alba hyaVma 

 p.pr.n«,m; ,.a«„* 6-10 (3-12) cm. loaga et aaepiua i. eoden. specimine 

 1^-3 mm. Ial«, Utior pv«Hor nrrvn. 3 majores jam 3 vel 4 tenuiores 

 prueWt. ,«i „, nngoMiore fn,.tra qnnrrn.tnr, olt.rior Mcc. vividis nunc 

 .D gUucnm Uuden., latior vn1,^n Mcr. nigirscntti-viridis. s^amulai: ,ntr.- 

 .....x. .. ovato. v., «b,oogo-,n.aKnlare. .a. 1 mn. l..„,.e. PK,ax.....8 

 tLLxl ^'«-/;"^- 3.5 cm. ,ong„.,; ,xn.0K.sc...u stain 



1^-9 n,n,. Inngu et anpm ..u-dinm lata. nnllUn in.-T;.ssata. Antuehak 



I 1 mm. longae, connectivum iiiduiatuni persistens. Carpidia 1—1,5 iniii. 

 longa. Ni'X 2,8-3 nun. louga, 2 mm. lata, cum rostro 0,8 mm. longo. 



Habitat in Peruviae prov. Lima et Chanray . dbmide in paludihun 

 et lacubus Lurin didis: Ruiz et Pavon, Domhey ; in difionifi I^cuadorams 

 AndituH: Spruce n. 58S6. 



Oits. Ut v\. Arth. Bkxnett beuevole inecnm commnnicavit inter 

 specimina originaria Pavoniaua in liorbaiio Musci Britiumici assoivata 

 jjpeeies diiae occnirnnt, piaeter iUam ex at'tinitatc P. perfinnti h., altera 

 ctnn P.pmiHoL. affiui.-* vel potins, qiinm formas nonnullas a P. inmllo L. 

 nimis arU'ficialiter diruptas cum eo iterum ennjiiuxerim, eadem. Quuni 

 nntem planla in Flora Pernviaua t. lOB. fi^'. b depicta sine tilla dubitiitione 

 P. etriatum supra descriptiim representet, exemplaria aliena certissime 

 casn -solo commixta niihi videntur. Quoad ditierentiam a P. pedinato I.. 



jam supra 



I'lU. 



10. POTAMOGETOK AULACOPHYLLUS K. Sou. 

 rbizomate pro I'ata staturae validiusciilo, inteniodiis brevibiis, 

 ramosissimo.cauUbusbrevibus ut videtur subcarnoais teretibiis; 

 fcliis omnibus conforniibus alternis summis tantum infra in- 

 florescentias spiu'ie oppositis, an^nste lin^iiribus obtusis car- 

 nosis vel crassiusculis saltom supra extiavatis subtus convexis 

 et subcarinatis , praeter lacunas binas laterales in medio 

 pUiribus angustioribus percursis, basi vaginatim dilatatis, 

 ligula oblongolineari obtusa quani vagina breviore munitis; 

 squamulis intravaginalibus binis triangularibus membranaceis; 

 inflorescentia pro rata longe podunculata interrupta, floribns 

 6 — 10 deeussatis vel subdecussatis , superioribns capitato- 

 congi'stls; perigonii pliyllis cuneatis obtusis vel truncatis 

 basi attenuatis, staniinum connect! vis persistentibus triangulari- 

 Imstatis; carpidiis erassiusculis semiovatis truncatis; nuce 

 oblique elliptica, stilo subapicali, dorso crasso rotundato 

 caiinis omnibus obsoletis, parvula. 



EiiizoMATA 1 cm. vel ultra <'rassu, interuodii.s vulgo 1 cm. ad aum- 

 mnm 2 cm. longia, supva fnudum staguonnu hand in solo repen.s, radicibu.s 

 eopiosis niiforniibns e nodis excie.scenfibus afflxa dcnsLssime inteitexta, 

 ita nt canles foliosi eae^pitem den.sam efformeiit. Caums 9 — 13 cm. 

 Inngu9 et 1 — 1.5 mm, eiasaas, pallide flave:*c€nti-biu'.inens vel Intescena 

 fragilis. Foi.u 3- Gem. longa, cnm vagin.i ca. 1 cm. longa, 1 mm. vel 

 panlo nllra lata laleribua membranaeea dorso duiiora, sice, nigreseenti- 

 brunnea colon's Zoshrae marinae ex.sitcatue , sectioue tiausvevsa subtvi- 

 angnl.iria, ba.si concava et dovso snbrotnndata; tela media lacunas binas 

 majuKcnhis et nonnulia.s laterales asteiifotnies includit, ita ut consisteutia 

 folii quasi sponj>io!;o-Ciirno.sula evadat, more foliorum Jimrorum quorundam; 

 Linui.A 7—9 mm. longii tenerrima mox evanescens; squamulab intiiavagi- 

 nai.ks ca. 0,6 mm. longae. pKouNfrr-us 2,5-4 cm. longus, colore caulis 

 velobscnrior. Infi.oresukktia 2— 2,5 cm. longa. Prkigonii phyi.i.a 1,5 mm. 

 longa, et siiperne fere 1mm. lata, hand cucnllata. Connectivum stamiuis 

 persi-stens ca. 1 mm. longnm. Ntx 2 mm. longa, 1,5 mm. lata, nauco 

 purvo tenni, rostro i»revi.'isimo et cons|)ic'ue dorsum versus posilo. 



Habitat in repuhlica Argentina in rivulo ad pedem montis Pe/ion 

 in Cordillera de la Rioja ad 4000 m. alt. : Hieronymus et Niederlein n- 226. 



Oils. Species babiiu quam maxime insiguis forsan varietatein 

 alpestiem P. pedinati h. solam exhit)et; si autern P. marinm h. pro 

 specie propii;i habetur tpiod uumographus generis, cujus opus hodie noudnm 

 perfectuni tantopeie exspeclamus, probat, haec plauta iusignis .sub titulo 

 Potlera describenda est. Cl. HiBKoxY.\fi:s me docet, eam in valie climate 

 asperrimo rivubini alpestrem parvum aqua tVigidissima et leviter salsa 

 prope limites vt-getationis deusissime farcis et certissime nunm ex locis 

 maxime elevatis generis tcuere. Nuces parvae eas F. marini L. aequante.s 

 tv P. pidinah L. facile dislinguuut, in.snppr sectio Irausveisa struc- 

 Inram peonliarem folii quae ciuu ca speciei alius non couvenit, statim 

 manifcstat. 



