VA2 BOTANY OF SOCOTRA. 



on better soil the branches spread out, often to about two feet in length, as in 

 our n. 561. 



4. OPLISMENUS. 



Oplismenus, Beauv. Flor. d'Ow. et Ben. ii. 14, t. 63, and Agrostog. 53, t. 11, f. 3 ; Benth. et 

 Hook. Gen. PI. iii. 1101. 



A small genus, dispersed widely in tropical and subtropical regions. 



1. O. Burmanni, Beauv. Agrostog. 54; Kunth Enum. i. 139. 



0. multisetus, Ach. Bich. Tent. Flor. Abyss, ii. 377. 



Panicum Burmanni, Betz. Obs. iii. 10 ; Trin. Sp. Gram. ii. t. 193. 



P. multisctum, Hochst. in berb. Schimp. Abyss, sect. iii. n. 1469. 



Socotra. Common. B.C.S. n. 295. Schweinf. n. 422. 

 Distrib. Round the world in the tropics. 



2. O. compositus, Beauv. Agrostog. 54. 



Panicum compositum, Linn. Sp. 84; Trin. Sp. Gram. ii. tfc. 187, 188, 190. 



Socotra. In Wadi Digal. Schweinf. n. 587. 

 Distrib. Common in the tropics. 



5. SETARIA. 



Setaria, Beauv. Flor. d'Ow. et Ben. ii. 80, quoad char. gen. non t. 110; Benth. et Hook. Gen. 

 PL iii. 1105. 



A cosmopolitan small genus of badly defined species, some of which are 

 amongst the commonest of weeds. 



1. S. glauca, Beauv. Agrostog. 51 ; Kunth Enum. i. 149 ; Reichb. Ic. Flor. 

 Germ. i. t. 47. 



S aurea, Hocbst. in herb. Schimp. Abyss, sect. i. n. 409. 



Panicum glaucum, Linn. Sp. 83; Trin. Sp. Gram. ii. t. 195. 



P. chrysanthum, Steud. Syn. 50 ; Oliv. in Trans. Linn. Soc. xxix. 172. 



Pennisetum glaucum, E. Br. Prod. 195 ; Ach. Rich. Tent. Flor. Abyss, ii. 377. 



P. aureum, Ach. Rich. he. cit. 378. 



Socotra. Abundant. B.C.S. n. 287. 

 Distrib. Everywhere in the tropics. 



2. S. viridis, Beauv. Agrostog. 51 ; Kunth Enum. i. 151; Reichb. Ic. Flor. 

 Germ. i. t. 47. 



Panicum viride, Linn. Sp. n. 83 ; Trin. Sp. Gram. ii. t. 203. 



Socotra. Not uncommon. B.C.S. n. 571. 



Distrib. Tropics, but not so common as the other mentioned. 



