CUCURBITACEA. 491 
6. Sicyos parvifolius, A. Gray ex Naud. in Ann. Se. Nat. sér. 5, vi. p. 22. 
SoutH Mexico (Bourgeaw). ; 
7. Sicyos vitifolius, Hook. et Arn. Bot. Beech. Voy. p. 292. 
Souta Mexico, Tepic (Lay). Hb. Kew. 
17. SICYOSPERMA. | 
Sicyosperma, A. Gray, Pl. Wright. ii. p. 62; Benth. et Hook. Gen. Plant. i. p. 837. 
Monotypic. | 
1. Sicyosperma gracile, A. Gray, Pl. Wright. ii. p. 62. 
NortH Mexico, Santa Cruz, Sonora (Wright). Hb. Kew. 
18. SECHIUM. 
Sechium, P. Browne, Nat. Hist. Jam. t. 355; Benth. et Hook. Gen. Plant. i. p. 837. 
Bentham and Hooker limit the genus to 8. edule, a commonly cultivated plant in 
warm countries. 
1. Sechium edule, Sw. Fl. Ind. Oce. ii. p. 1150. 
Sechium chayota, Jacq. Amer. t. 163. 
Souta Mexico, Santa Anita near Mexico (Bourgeau, 626), Orizaba (Botteri, 574), 
valley of Cordova (Bourgeau, 1698); PanaMa, without locality (Seemann).— West INDIES 
and Tropical Sovrn America. Hb. Kew. 
19. TRICERATIA. 
Triceratia, A. Rich. Fl. Cub. p. 614; Benth. et Hook. Gen. Plant. i. p. 838. 
Besides the following, there is a doubtful species, the Fevillea monosperma of the FI. 
Flum. x. t. 103. 
1. Triceratia bryonioides, A. Rich. Fl. Cub. p. 614, t. 44. fig. 2. 
Fevillea tamnifolia, H. B. K. Nov. Gen. et Sp. vii. t. 640. 
Sicydium schiedeanum, Schl. in Linnea, vil. p. 388. 
Soutn Mzxico, dense forests of Teapa (Linden, 987), Hacienda de la Laguna (Schiede) ; 
Nicaragua, neighbourhood of Granada (Levy, 279); Panama (S. Hayes, 191).—WeEst 
InpiEs and the northern parts of Sovrn America. Hb. Kew. 
| 20. MICROSECHIUM. 
Microsechium, Naud. in Ann. Sc. Nat. sér. 5, vi. p. 25; Benth. et Hook. Gen. Plant. i. p. 838. 
Restricted to Mexico and Guatemala. 
1. Microsechium guatemalense, Hemsley, Diag. Pl. Nov. pars 1, p. 16. 
| (Tab. XXXL.) 
Foliis asperis cordiformibus 5-partitis segmentis lateralibus patentibus ceteris duplo triplove 
3r 2 
