56 MONOCOTYLEDONEÆ. ECHINODORUS. 
floribus 9- andris; carpellis complanatis , lateraliter glandulosis, ecos- 
tatis. Alisma humile Kunth Enum. 3, p. 154 
Rhizoma brevissimum, fibrillas radicales, filiformes agens. Folia 
25-30 mill. longa (cum petiolo), 8-10 mill. lata, membranacea, ovata, 
basi sensim in petiolum complanatum, infra dilatatum, limbum æquan- 
tem decurrentia, apice acuta, trinervia, nervis secundariis venisque 
paucis, linee pellucidz elongate, oblique, nonnunquam difficile 
conspicuæ. Scapus foliis brevior, vix 1- 1,5 cent. altus, apice uniflorus, 
infra apicem, bracteis duobus plus minusve coalitis, anguste ovatis, 
membranaceis, obtusis instructus ; ad axillam bractearum, alabastrum 
abortivum sspe occurrit. Flores majusculi, erecti. Sepala ovata, ad 
apicem angustata, obtusa, vix concava, 4-5 mill. longa, post anthesin 
reflexa; petala longiora, albida. Stamina 9, circa 3 mill. longa, antheræ 
filamentis circa duplo breviores, basifixæ. Ovaria oblique ovata, com- 
pressa, stylo ensiformi rostrata. Carpella numerosissima, in fructum 
echinatum, subglobosum congesta, oblique obovata, complanato-com- 
pressa, marginata, stylo elongato, fere recto aristata, costæ laterales 
inconspicuæ, glandulæ autem circa loculum plures irregulares. Semina 
testa tenui, fere lævi. 
In Africa occidentali, Senegambia prope Richard Tol (Lelièvre 
in herb. Berol., Leprieur in herb. Mus. Par.) Senegalia (Perrottet 
n. 75, n. 811). 
13. E. rostratus (Eng. in Gray Man. of Bot. ed. 2, 1856, p. 438); 
P4 foliis ovatis, benc cordatis, lineis pellucidis notatis ; seapo erecto, folia 
multo superant ,12 andri; carpella costata, 
longe rostrata, glandulosa. Alisma cordifolium Linn. Sp. plant. ed. 5, 
p. 487 (pro parte); Swartz Obs. p. 139; Willd. Spec. 2, p. 277; Róm. et 
Schult. Syst. 7, p. 1606; Kunth Enum. 3, p. 152. Alisma fol. cordatis, 
obtusis Plum. Pl. ámer. ed. Burmann p. 230, t. 234, fig. 2. A. Ber- 
teroanum Balb. in Róm. et Schult. Syst. 7, p. 1605; Kunth Enum. 5, 
p. 152. A. Sprengelii Kunth 3, p. 154, syn. A. Berterii Spreng. Syst. 2, 
163? (incertæ sedis, ex insula Guadalupe; a cl. Griseb. Fl. of brit. 
W. Ind. Isl. p. 505 ad A. cordifolium relatum cum annot.: plantà 
junior cum foliis ovalibus; a cl. Seubert autem ad A. subalatum; sed . 
hiec species Guyanam et Brasiliam tantum habitat). Alisma rostratum 
Nuttal Coll. Arkansas in Trans. Amer. Phil. Soc. 1837, p. 159. Echi- 
nod. cordifolius Griseb. Veget. d. Karaiben 1857, p. 109 et Fl. of brit. 
W. Ind. Islands, p. 505. 
Plantæ statura valde variabiles; minores 5-6 cent. altæ, majores 
