120 



^'-" Jiemnaceae. Uerlae natantes r. siibniersac, liberae nec 

 yaclo affixae, ladicula iina \. pluribus, singulis caljptratis, descen- 

 dentibus, caule ciim foliis in frondeni confluente, fronde siniplicissinia 

 e riniabasilari unica v. duabus Jateralibus proliftra, prole nuda v. sti- 

 pulis dual)us nienihranaceis aucta. Spadix ob axim suppressum subnul- 

 lus, spatha membranacea, urceolaia, staminuni evolutione irregu- 

 lariter tissa. F/ores monoici, staminiferi mono- dianthcri. Filamenta 

 filiform'a. ^«M^/w biloculares, loculis subglobosis, basi divaricatis- 

 .simis, lon^itudinaliier dphiscentibus. Floribus pistilliferis; Gerinen 

 sessile, uniloculaie, gemmulis basilaribus erectis unica v. pluribus, 

 anatropis, hemianatropis v. orthotropis. LHriculus mono-polysper- 

 mus V. capsula circumscis.sa. Seminum iutegumentum duplex , exterius 

 c.triaceo-carnosum, interius membranaceum, endostomio indurato, 

 in germinatione embryotego. Embryo in axi albuminis carnosi rectus, 

 gemma radiculam superam, inferam v. vagani spectante. 



G E N E R A . 



16GS. Wolffia Ho?-;'. n. Lenticula E.'?r/?. 



Horkelia Rdchenb. '>• Slaiirofieton Reichenh. 



166«. Lenuia.SW/?e/rf. 1<>6|^. Telmatophace Sc///e?W. 



WommEndl 1G0|. Splrodela ScA/e?'rf. 



Affiliitas. Leninaceas inler Najadeas et Aroideas metlias, his per 

 Plsliam arctissime affines, ob structuram imperfectam aUhuc in calce riiivia- 

 linm, classis cum Spadicifloris olim conjugendae, relinquimus. 



©eograpllia. In aquis stagnantibus omnium climalum oTiservatae, 

 in temperatis hemisphaerae horealis maximo numero gignuntur, innumera in- 

 divirtuorum, continua prole crescentium copia, fossas et stagna Jaelo froiulis 

 simplicissimae aulaeo tegentes, inter tropicos, ob continuas elementi nunc solis 

 radiis exhausti nunc imhribus vehementissimis libellam mutantis v. procellis 

 agitali vicissitudines multo rariores, in lemperalis trans capricornum rarae. 



Q^ualitates et u§US. Planlularum innumeras animalculorum genles 

 nutrientium herba (Herba Lentis palusfris) refrigerans, veferibus in ictero el in 

 inflammafionibus arfhriticis commendata, qualitatibus Pistiae similis, 



Classis XXI. Spadiciflorae. 



HcrLac acaiiles v. caulesccntes, rarius suiFiutices, 

 saepiiis scaiidentes, foliis caulinis alternis, congestis v. 

 spiraliter dispositis, lamina (interdiiin abortiva) saepius 

 lata, palinati- v. pedatinervia, rarius penninervia, inteora, 

 dissecta v. decomposita, florihus in spadice, spat^ia folia- 

 cea, plus minos transformata munito sessilibus, saepissime 

 staminibus a pistillis segregatis, monoicis v. dioicis^ rarius 

 consociatis, liermapliroditisj perigonio nullo v. rudimen- 

 tario, saepius asymetrico, staminibus perigonii dum adest 

 partibus o])j)ositis et numero aequalibus, germinibus uni- 

 nmltiloculariJius, gemmulis intra loculos solitariis v. pluri- 

 misj basilaribus v. parietalibus, ortLotropis aut anatropis, 

 fructu Laccato v. drupaceo, sejninibus albuminosis v. ger"- 



