PHANEROGAMS — PROFESSOR BAYLEY BALFOUR. 99 



Soeotra. Near Galonsir. B.C.S n. 162. 



Distrib. Of both the species and variety, — through the tropics generally. 



3. CUCUMIS. 



Cucumis, Linn. Gen. n. 1092 ; Benth. et Hook. Gen. PI. i. 826. 



A genus of the tropical and sub-tropical regions of the globe. The three 

 Socotran species are all of south-west Asiatic and tropical African distribution. 



1. C ficifolius, Ach. Eich. Tent. Flor. Abyss, i. 294, t. 53 bis ; Cogn. in 

 DC. Monog. Phanerog. iii. 493 ; Franch. Sert. Somal. in Miss. Revoil 32. 



C. Figarei, Delile Cat. Hort. Monsp. ex Naud. in Ann. Sc. Nat. s&\ 4, xi. (1859), 16 ; Hook. fil. 

 in Oliv. Flor. Trop. Afr. ii. 543 ; 



var. echinophorus, Naud. in Ann. Sc. Nat. ser. 4, xi. (1859), 16 ; Cogn. 

 loc. cit. 494. 



Soeotra. Not uncommon. B.C.S. nn. 52, 169. Schweinf. nn. 359, 746. 

 Distrib. Arabia and tropical Africa. 



2. C prophetarum, Linn. Sp. 1436 ; DC. Prod. iii. 301 ; Hook. fil. in 

 Oliv. Flor. Trop. Afr. ii. 545 ; Boiss. Flor. Orient, ii. 758 ; Clarke in Hook. 

 Flor. Brit. Ind. ii. 619 ; Cogn. in DC. Monog. Phanerog. iii. 495. 



Soeotra. Not uncommon. B.C.S. n. 682. 



Distrib. Tropical Africa, and through Arabia and Persia to India. 



3. O. dipsaceus, Ehrenb. in Spach Veg. Phan. vi. 211 ; Hook. fil. in Oliv. 

 Flor. Trop. Afr. ii. 543 ; Cogn. in DC. Monog. Phanerog. iii. 500 ; Eev. 

 Hortic. 1860, 209, c. ic. xyl. 



Nom. Vern. Thana (Schweinf.). 



Soeotra. At Tamarida. Schweinf. n. 435. 



Distrib. Arabia and tropical Africa. 



4. CITRULLUS. 



Citrullus, Schrad. in Eckl. et Zeyh. Enum. 279 ; Benth. et Hook. Gen. PI. i. 826. 



A genus of two species inhabiting the Mediterranean region, west Asia, and 

 tropical Africa. 



O. Colocynthis, Schrad. in Linneea xii. (1838), 414 ; Hook. fil. in Oliv. 

 Flor. Trop. Afr. ii. 548 ; Boiss. Flor. Orient, ii. 759 ; Clarke in Hook. Flor. 

 Brit. Ind. ii. 620 ; Cogn. in DC. Monog. Phanerog. iii. 510 ; Wight Ic. t. 498. 



Soeotra. Occasional about villages. B.C.S. n. 36. Boivin n. 1061. 

 Distrib. In the Mediterranean region, tropical Africa, and western Asia. 



