802 DICOTYLEDONEÆ. ECHINOCYSTIS. 
oblique rostrato, aculeis brevibus, gracilibus satis dense echinato. — 
Echinopepon milleflorus Naud.! in Ann. sc. nat. ser. 5, v. 6, p. 18. 
Caulis gracilis, sulcatus, ramosus, glaber, lævis, 6-7 metr. longus. 
Petiolus gracilis, striatus, glaber, 5-8 cent. longus. Folia supra in- 
tense viridia primum brevissime sparseque villoso-hirsuta demum 
scabra, subtus læte viridia glabra et sublævia, 4-5 cent. longa, 5-7 
cent. lata, margine minute denticulata, lobis late rotundatis, Sæpis- 
sime subnullis; sinus basilaris late rotundatus, 5-8 mill. profundus; 
nervi albescentes, utrinque vix prominentes, supra brevissime den- 
seque villoso-hirsuti. Cirrhi subfiliformes, breves, sulcati, glabri. Pe- 
dunculus communis masculus filiformis, apice leviter villosus, 5-7 cent. 
longus, 12-20-florus; pedicelli capillares, patuli, leviter villosi vel 
subglabri, 3-6 mill. longi. Calycis tubus virescens, 1 mill. longus la- 
tusque, dentes subulati, patuli, '/,-*/, mill. longi. Corolla alba, utrin- 
que papilloso-glandulosa, segmentis triangularibus, 5-nerviis, l'/, 
mill. longis, 1 mill. latis. Columna staminea glabra, ‘/, mill. longa: 
« antherarum loculi in formam ferri equini aut hypsilonis confecti, 
non confluentes nec agglutinati. » Flores feminei quam masculi ma- 
jores. Corollæ segmenta oblonga, 2 */, mill. longa. Pedunculus fructi- 
ferus filiformis, subglaber, 1 '/,-2 cent. longus. Fructus glaber, 22 mill. 
longus, 8 mill. crassus; rostrum conicum, breviter acuminatum, 
inerme, glabrum, 8 mill. longum; aculei patuli, ad basim vix incras 
sati, 2-3 mill. longi. : 
In convallibus montium prope Mexico (Bourgeau in herb. Mus. Par. 
et DC.). 
3. E. gemella (Cogn. Diagn. Cucurb. fase. 2, p. 88); foliis 
ovato-triangularibus, integris vel leviter trilobatis, basi leviter GM 
ginatis, apice acutis et sæpius mucronatis; cirrhis bifidis; floribus 
masculis minimis, in racemos paucifloros foliis longiores digestis; “* 
lyce glabro, subrotato; floribus femineis solitariis rarius geminat? 
vel ternis, longiuscule pedunculatis ; fructu parvo, oblongo, ab api 
ad basim attenuato, longe rostrato, aculeis gracilibus breviusculi 
sparse echinato. — Elaterium gemellum Ser. in DC. Prodr. 3, p. 310: 
Mocino et Sessé Ic. Fl. Mex. ined. tab. XXXVIII, fig. B. — Sicyos 
eremocarpus Peyritsch! in Linnæa, 30, p. 56, non Schauer. 
Annua. Caulis gracillimus, sulcatus, lævis, ad basim paulo ram? 
sus, 2-6 decim. longus. Petiolus gracillimus, striatus, glaber, yp 
2-5 cent. longus. Folia supra intense viridia et punctato-sCaber, et 
subtus læte viridia vel cinerea glabra et sublævia, 3-5 cent. longà 
