30 BOTANY OF SOCOTRA. 



1. A. fruticosum, Guill. et Perr. Fl. Seneg. i. 70 ; Boiss. Flor. Orient, i. 

 836 ; Mast, in Oliv. Flor. Trop. Afr. i. 187, and in Hook. Flor. Brit. Ind. i. 328. 

 Franch. Sert. Somal. in Miss. Ke>oil 15. 



A. microphyllum, Ach. Eich. Tent. Flor. Abyss, i. 70, t. xv. 



A. denticidatum, Planch, in herb. Hook.; T. And. in Journ. Linn. Soc. v. (1860), Suppl. 8. 



Sida denticulata, Fres. Mus. Senck. i. 182. 



Nom. Vern. Gehuha (B.C.S.) 



Socotra. Common. B.C.S. nn. 374, 703. Scliweinf. nn. 380, 540. 



Distrib. From the Canary Islands through tropical Africa, Syria, Arabia, 

 and Scindh, and reaching to Java. 



The species presents on Socotra considerable variation in its foliage. This 

 character is however exhibited by the plant in other localities. We have a form 

 (n. 374) from the island, in which the stems and leaf-petioles, as well as the mid- 

 ribs, are covered with long delicate spreading hairs, so that they are quite pilose. 

 This covering is additional to the normal close-set tomentum. 



2. A. muticum, G. Don. Syst. Veg. i. 502 ; Boiss. Flor. Orient, i. 836 ; 

 Mast, in Hook. Flor. Brit. Ind. i. 327. 



A. glaucum, G. Don. Syst. Veg. i. 504; Mast, in Oliv. Flor. Trop. Afr. i. 185. 

 Sida glauca, Cav. 1c. i. 8, t. 11. 



Socotra. Sparingly on the plains. B.C.S. n. 704. 



Distrib. From Cape de Verde Islands through tropical Africa, and in 

 tropical Asia generally. 



4. SENEA. 

 Senra, Cav. Diss. ii. 83, t. 35, f. 3, and 104 adnot ; Benth. et Hook. Gen. Pl.Vi. 207. 

 A monotypic genus, confined to Nile Land, Arabia, and Scindh. 



S. incana, Cav. Diss. ii. 83, t. 35, f. 3 ; Boiss. Flor. Orient, i. 838 ; Mast, 

 in Oliv. Flor. Trop. Afr. i. 194, and in Hook. Flor. Brit. Ind. i. 334 ; Franch. 

 Sert. Somal. in Miss. Revoil 15, 



Serrcea incana, Dene, in Ann. Sc. Nat. Sen 2. iv. 70, t. 4 ; Wight Ic. t. 1592. 

 Dumreichera arabica, Hochst. et Steud. in herb. Schinip. Abyss, sect. i. n. 817. 



Nom. Vern. Fereedah (B.C.S.) 



Socotra. Very common around Galonsir and other villages. B.C.S. n. 4. 

 Scliweinf. n. 324. 



Distrib. Of the genus. 



5. HIBISCUS. 



Hibiscus, Linn. Gen. n. 846 ; Benth. et Hook. Gen. PI. i. 207. 



A vast genus of herbs, shrubs, or trees, widely dispersed in the tropics. On 

 Socotra nine species are found ; three, and probably a fourth, are endemic, the 



