ECHINOCYSTIS . CUCURBITACEÆ (AUCT. COGNIAUX). 807 
bitu suborbicularibus, leviter 5-lobatis, basi profunde emarginatis, 
apice acutis vel breviter acuminatis; cirrhis 2-4-fidis ; floribus mas- 
culis majuseulis, in racemos paucifloros foliis multo longiores digestis ; 
calyce leviter villoso, late campanulato; floribus femineis subsessili- 
bus, solitariis vel rarius geminatis; fructu magno, ovoideo-oblongo, 
longe rostrato, aculeis robustis densis elongatis ad basim subaraneo- 
sis echinato. — Elaterium ? Coulteri A. Gray! Pl. Wright., part. 2, 
p. 61. — Echinopepon horridus Naud.! in Ann. sc. nat. ser. 5, v. 6, 
p. 19, 
Caulis gracilis, scandens, 4 metr. longus, modice ramosus, angu- 
lato-sulcatus, sparse longeque villoso-hirsutus. Petiolus satis gracilis, 
striatus, dense longeque sericeo-villosus. Folia supra læte viridia, 
subtus einerea, utrinque sparse villoso-hirsuta, 8-10 cent. longa et 
fere totidem lata, margine minutissime remotequé denticulata; sinus 
basilaris subrotundatus, 2-3 cent. latus, 1 '/,-2 cent. profundus. 
Cirrhi robusti, elongati, profunde sulcati, sparse villosi. Peduneulus 
communis masculus robustus, angulato-suleatus, sparse villosus, 
12-25 cent. longus, 5-15-florus; pedicelli filiformes, patuli vel reflexi, 
breviter denseque villosi, 5-9 mill. longi. Calyx albescens, nervis viri- 
dibus, tubo 4 mill. longo, 7-8 mill. lato; dentibus patulis, anguste 
triangularibus, 2 mill. longis, ad basim 1 */, mill. latis. Corolla alba, 
extus sparse villosa, utrinque dense punctato-glandulosa, segmentis 
late ovatis vel ovato-oblongis, apice rotundatis, 7-nerviis, 6-7 mill. 
longis, 4-5 mill. latis. Columna staminea crassa, glabra, 3 mill. longa; 
capitulum antherarum subsphæricum, 2 !/,-3 mill. crassum. Ovarium 
ovoideum, tomentosum, apice in rostrum æquilongum inerme con- 
strictum. Pedunculus fructiferus satis gracilis, dense villosus, 3-6 mill. 
longus. Fructus oblongus, 4 cent. longus, 2 cent. crassus; rostrum 
conicum, subinerme, 12-15 mill. longum; aculei inæquales, basi levi- 
ter incrassati, 4-18 mill. longi. Semina fusca, ovata, basi truncata et 
vix bidentata, apice rotundata, utrinque verruculosa, 6-6 '/, mill. 
longa, 4-4 '/, mill. lata, 2 mill. crassa. 
In Neo-Mexico (Wright in herb. Kew.); in Mexico (Pavon in herb. 
Webb. ; Mocino et Sessé in herb. Webb. ; Sartorius in herb. Berol.); 
ad Zacatecas (Coulter n. 51 in herb. Kew.); prope Vera-Cruz (Ga- 
leotti n. 1899 in herb. Kew., Muss. Par., Deless., Acad. Petrop.); ad 
Escamella prope Orizaba (Bourgeau n. 3266 in mult. herb.) ; prope 
izaba (Botteri n. 573 in herb. DC. et Mus. Par.); prope Cordova 
(Bourgeau n. 1478 in herb. Mus. Par., Boiss., Cosson); ad Oaxaca, 
Tepizongo et Ixtepeji (Galeotti n. 1879 in herb. Brux., Mus. Par., 
