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NAJADACEAE : NAJAS. 



724 



Spec, pi IV. 1SJ3. ». 3^34; Tlich. Mim. Mus. I. 365; EndL 

 Gen pi. 230, n. 3656; Meimi. Gen. pi 364 (212); Ledeh. 

 Fl. Ross, IV. 19; Godr. ei Or. Fl. Fr. III. 322; Lindl 

 Veijet. Kingd. ed. III. U4 ; Parlai. Fl Hal III G63. - 

 CavoUAHA nafm. Jonrn. Phifs. LXXXIX. 259. - Fluvialis 

 VniU. M^m acnd. Par. 1719. p. 13; Mkheli, Nov pi gen. 

 11. i. 8; Adan:i. Fam. IL 472; Hoffm. Bol Taschenh. 251; 

 Fers. Syn. II. 530. n. 2017. — Ittnera Gmel Fl. Bad. III. 

 573, — ITyas Bum. Auul fam. CI. (Litteratura amplior ef. 



P. Moffn. Beiir. Gaily. Najas/ 



Oharacter idem ac fainiliae. 



•M BBASIMENSnTM. 



CLAVTR i 



Sectio I. EUNAJAS Ascuebs. Flores dioeci; antherae 

 quadriloculares; canales in tercel! ala res corticis cauliiii ab 

 euJodermatc (SchuUnchtukJ stratis pluribus parenehymaticis 

 •egregati; folia ntrinqne epideimide. conspicua velata; testa 



tenlnniu e stiutU pluribus cellularam porose incrassatarum 

 nkbossearnro constracta 1. N. makina Lion. 



Sct'tioll. CAULINIA Al. Br. Flores mouoeci (an 

 iMiper?); antherae ntii- vel quartrilocniares; canales inter- 

 cellukrci cuitick cauUui ab endodermate stratu solitario 

 parenchymatico segregate; folia epidermide baud miinita, nnn- 

 qiam dorso aculeata uti cauUs ublque ititinnia; testa semiuum 

 e stratis celialarum 3 varie efformatis exstrurta. 



A. Series I. Amrricanac P. Magn. Vagina declivi, s&BtAm in laminam 

 atteon.-itn. 



ft. THos maH-iilinnx hniid mnnift'stc pedloellataa. 



a. Serrntnrae ope Irntis validae modo consptcooe, c«l- 

 InTae pnnpcnfM nerape vix vel iie vix qnidom snpnv 

 margioem lamfnae elevatae . , . 2. N. GuADiI.i;i'KN8is Mor. 

 fl. Scrratnrae jam ocnlo undo consplenae. 



6 Tealae atratiiQi exterins (ot N. Ouadelupensis Mor.) e celluHs 

 •ulHiiifMiratia hiiinilibiiM, lateribus more cratis incrasaatis effor- 

 iittttuiai folia ope diapliriigiuHtnm ad medium hand tesaellnta. 

 i ^euiiuA vix 1 mm. lotiga ellipsoidea minima 

 Kcuciis, vagina aaepiua ob seiratnras valde 

 prudiicluH iimbriuta ... 3. X. microcarpa K. Sch. 

 AA Semimi duplo miyorii lubilormia, vagina brevi- 



bas aamtark instructa . . 4. N. cokkebta A1. Br. 

 §§ Tcttae stratum exierius [more N. JlcxUia Kostk. 

 et Schnm.) porose i?iCTa>s;itum; folia ad medium 

 ope dinphrngmatiun penucidorum toD3pi<:ue tcs- 



■*'"^** 5. K ARGITA IJ.B.Kth. 



b. Flua iuam:iilinns diatinrte et Inngluecale pedicellfttM ; 

 iMtM ttratum exterins N. Gnadflup^isis n.itunie 



* 6. N. PODOBTBHON V. Magn. 



B. Heriea S. Ectaoisatae P. Mttgn. Vagina a lamina distincta. 



Sul>s.r.«, 1. Trm>catulat K. Sch. Vogiua cnm lamina folii angulam 



rect .ngnlarem efticieus (in Btaailia adhnc uon reperta) 

 ?'aWne«2. Aurimtatac K.fich. Vagina apice manifeste 



. 7. N. oraminea Del. 



ftnHcnliita 



1. NAJAS MARINA Linn, caulibus specierum omnium 

 vahdiasimis acnleatis vd vm^ \nevmMs ramosissimis vel 

 ramosia rhombeoHiichotomis, internodiis inferioribus elongatis 

 demum baud rart> plus minus denudatis. mediis jam majus- 

 cnlb, spmmi3 abbreviatis ita nt demam fasciculi foHoL 

 confert, evadant ; foliis anga^tius vel latius linearibns acutis 

 rel ranua acauunati. snbstantia statu juveuili herbacea vel 



membranacea ipsa dein saepius duriore interdum plus minus 

 cartilaginea, manifeste serratis , serraturis utraque laminae 

 parte nunc 4 tantum nunc ultra 10 repandis alte supra mar- 

 ginem productis, dorso aculeis pluribus arniatis raiissime nullis, 

 cellulis scleroticis marginalibus vel dorsalibus 0. vagina declivi 

 vel apice subtruncata serraturis paucis modice supra marginem 

 elevatis munita, squaraulis intravaginalibus late subulatis vel 

 rotundato-trigonisvel subsemiorbicularibus; floribus dioecis soli- 



+ 



tariis pro node, foemineo lageniforrai nudo, stilo modice longo 

 vel brevi in stigmata 3 (rarius 2 vel 4 ex Al. Braun) acuminata 

 ubique priore longiora desinente; flore masculo sessili sub- 

 tetragono, perigonio apice 3— 4-Iobato, anthera apice apiculata 

 subbiloba quadriloculari, valvulisS— 4 se revolventibus aperta, 

 perigonium irregulariter fissum superante; semine oblongo 

 acuto basi obtusiusculo, hilo et rhaphide subculcata conspicuo, 



■ 



inferne subcomplanato minute at baud regulariter seriatim 

 foveolato, epidermide fugaci, e cellulis baud incrassatis eiFor- 

 mata velato, testa ossea e stratis pluribus cellularum porose 

 incrassatarum constructa. 



Tabula nostra CXXIII. Fig. II (habitus et analysis). 



Najas marina Linn. Spec, pi ed. I. 1015, Hort. CUff. 

 437, Fl Suec. 791, in Eoy. Lngd. 10; Suffren, PI dii Frioul 



4 



193 ; Savi, Due Centi 199; Reichh. Fl excurs. I. 150; Kalm, 

 Fl Fenn. n. 358; GuldensL U. 1. 74. 113. 190; Nyland. 

 Spicil I. 96; Bl et Fing. Coinp. ed. IL 584; Aschers. Fl 

 Mark Brandenh. 669; Morony in Mem. Torr. lot. club. IV. 

 n. 2. p. 58. 



Najas major All Fl Pedem. IL 221 ; DC. Fl. Fr. IL 

 587 ; Cham.! in Mundt, Adnot. flor. Berol 12, in Linn. IV. 

 498; Ktkf Ennm. pi IIL 112; Koch, Syn. ed. IL 783; 

 Parlal Fl Hal III. 662; Ledeh. FL Ross. IV. 20; Bert. 

 Fl It. X. 294; Godr. et Gren. Fl. Fr. IIL 322; Gray, 

 Man. ed. V. 483; Al Braun in Journ. hoL IL 275; P. 

 Maynus in Beitr. zur Gaftg. Naj. Berl 1870 loc. pi, in 

 Nuov. Giorn. II. 187; Benth. Fl Austr. VIL 181; Hillhrd. 

 Fl Haiv. 4.58. 



Najas pluvlalis Lam. Encycl IV. 416. 



Najas monosperma Willd.! Spec, pi IV. 331; Nocc. et 

 Balh. Fl Ticin. IL 182; 



Najas fetrasperma Willd.! I c. 



Najas maritima Pall It. I. 364. 375; Georyi, Besclir. 

 Buss. Reichs IIL 5. p. 1326. ' 



Ittnera najas Gmel Fl Bad. IIL 590. L 3. 



Fluvialis vulyaris lutif alia Vaillant, Acta Parisiensia 17 19 . 

 p. 17. t. 1. jig. 2. 



Fluvialis latifolia fructn ohtuso tetraspermo Mich. PI nov. 

 gen. IL t. 8. fig. 1 et 2. 



Fluvialis Pisana foliis dentictdatis Zann. Opusc. potham. 

 .24 (e Bertol). 



_ I 



Potamogeton fluviatile sargazo simile lucens, folik margine 

 dentatis Pink. Almag. 304. t. 216. fig. 4. 



Var. a. genuina K Sch. caulibus modice aculeolatis; 

 foliis^ modice latis serraturis 6-7 utraque laminae parte, 

 aculeis dorsalibus paucis, vagina serraturis paucis praedita; 

 semiue majusculo pnllidiore nunc flavescenti. 



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