492 CUCURBITACEA. 
brevioribus, racemis masculis plurifloris quam folia duplo longioribus, floribus femininis_ 
seepissime geminis sessilibus, pedunculis quam folia multo brevioribus, masculinis coaxillaribus. 
Herba alte scandens, ramulis gracilibus, angulatis. Folia petiolata, membranacea, scabrida, cordi- - 
formia, 5-partita, lamina ad 24-38 poll. diametro, segmentis acutissimis, lateralibus patentibus, 
ceteris duplo triplove brevioribus, sinibus inter segmenta rotundatis, petiolo ad sesquipollicari, 
cirris seepissime tripartitis. Flores pilis albis longiusculis sparsis obsiti, monoici, utriusque 
sexus ex eadem axilla: masculini pedicellati, racemosi, racemis longissime pedunculatis ; 
feminini sepissime geminati et ad apicem pedunculi petiolum wquantis sessiles. Flores 
3 tetrameri, ad semipoll. diametro; calycis lobi subulati; corolla venosa; stamina 4, fila- 
mentis a basi liberis, antheris unilocularibus (vel stam. 2, antherarum loculis discretis, con- 
nectivo alte bifurco); ovarium rudimentarium nullum. Flores ? trimeri, masculinis minores ; 
ovarium uniloculare, stylo gracili exserto, stigmate crasso trilobato. Fructus oblongus, tu- 
berculato-spinosulus, ad 9 lin. longus. 
GuATEMALA, ridge above Calderas, Volcan de Fuego, at 8300 feet (Salvin). Hb. 
Kew. 
EXPLANATION OF TAB. XXXI. 
Portion of plant, nat. size.. Fig. 1, male flower unexpanded; 2, female flower expanded; 3, male 
flower expanded ; 4, vertical section of unripe fruit. 
2. Microsechium ruderale, Naud. in Ann. Sc. Nat. sér. 5, vi. p. 25. 
Sicyos helleri, Peyr. in Linnea, xxx. p. 56. 
Sechium palmatum, DC. Calques des Dess. Fl. Mex. 355. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 261); 
SourH Mexico, region of Orizaba (Bourgeau, 2984, 3051), at 10,000 feet (Galeotti, 
1895), at 9000 to 9800 feet (Linden, 435, 436), Jalapa (Linden, 433), woods of Oaxaca 
(Galeotti, 1880, 1887), near the city of Toluca, 8800 (Heller), Guadalupe, valley of 
Mexico (Bourgeau, 783), among bushes near the city of Mexico (Bourgeau, 621). Hb. 
Kew. | 
21. SECHIOPSIS. 
Sechiopsis, Naud. in Ann. Sc. Nat. sér. 5, vi. p. 23; Benth. et Hook. Gen. Plant. i. p. 838. 
The only species :— 
1. Sechiopsis triquetra, Naud. in Ann. Sc. Nat. sér. 5, vi. p. 24. 
Sicyos triqueter, Moc. et Sessé. 
Souta Mexico, Cuernavaca, Iturbide (Bourgeau, 1198). Hb. Kew. 
22, SCHIZOCARPUM. 
Schizocarpum, Schrad. in Linnea, vi. Litteratur-Bericht, p. 73; Benth. et Hook. Gen. Plant. i. 
p. 825. ° 2 
This genus was not recognized by Bentham and Hooker; but Cogniaux has since 
been able to identify it by means of the type specimen. It is limited to the following 
species :— 
