308 BOTANY OF SOCOTRA. 



6. CLADIUM. 



Cladium, V. Br. Hist. Jam. 114 ; Benth. et Hook. Gen. PL iii. 1065. 



A small genus spread all over the world, but with headquarters in 

 Australia. 



C. mariscus, R. Br. Prod. 236 ; Kunth Enum. ii. 303 ; Bcklr. Linnsea 

 xxxviil 232 ; Boiss. Flor. Orient, v. 392 ; Reichb. Ic. Flor. Germ. 8, t. 287. 

 Nom. Vern. Ouref. 



Socotra. Near Tamarida. B.C.S. n. 387. Schweinf. n. 547. 

 Distrib. All over the world. 



Order LXXXIL GRAMINEJ5. 



This extensive family is represented in Socotra by more genera than any 

 other in the flora. There are twenty- eight genera, and the greater number of 

 these are widely spread in tropical and subtropical regions, several including 

 common weeds of cultivation. The only genera of limited distribution that 

 deserve mention here are the endemic Ischnurus ; the Abyssinian and ^Ethiopian 

 Rhynchelytrum ; jEleuropus, which extends from the Mediterranean region to 

 India; Melanocenchris, a tropical African and Asian genus; Arthraxon, with a 

 chiefly Indian distribution ; and Lepturus which is mainly north temperate but 

 is also found in Australia and the Pacific islands. Of the others two or three 

 only are confined to the old world. 



1. PASPALUM. 



Paspahcm, Linn. Gen. n. 75 ; Benth. et Hook. Gen. PI. iii. 1097. 



A very large genus, widely dispersed in tropical and subtropical regions, and 

 most abundant in America. 



1. P. scrobiculatum, Linn. Mant. 29 ; Kunth Enum. i. 53 ; Trim. Spec. 

 Gram. ii. t. 143. 



Socotra. Near Galonsir. B.C.S. n. 305. 

 Distrib. Tropical Asia and Africa. 



2. P. distichum, Linn. Sp. 82 ; Kunth Enum. i. 52. 

 P. vaginatum, Sw. Flor. Ind. Occ. i. 535. 



Socotra. At Galonsir. B.C.S. n. 236. Schweinf. n. 717, pro parte. 

 Distrib. Tropics of both old and new worlds. 



2. ERIOCHLOA. 



Eriocldoa, H. B. et K. Nov. Gen. et Sp. i. 94, tt. 30, 31 ; Benth. et Hook. Gen. PI. iii. 1099. 

 A small tropical genus occurring in both the old and new worlds. 



