215 



DlSTR. From Senegambia to North-west India and through 

 East Africa to the Cape. 



Chiovenda (I.e. vii., 66) described a variety anachoretica from 

 specimens collected by Riva in the Ogaden desert (in the Haud, 

 according to Engler). It is stated to differ from the typical form 

 in having smaller, unispiculate involucres and unequal glumes ; 

 but as Riva's specimens were diseased, the differences may very 

 well be due to the anomalous condition of the grass. 



P. dichotomum, Del. ; Hook, f., Fl. Brit. Ind., vii., 85. 

 Maid, in the coast plain, Hildebrandt, 1481. 



DlSTR. From Algiers to North-western India. 



P. Ruppellii, Steud. — Syn. P. orientate, Chiovenda in Ann. 1st. 

 Bot. Roma, vii., 65, non Rich. 



Golis Range, Drake-Brock man, 151 ; without precise locality, 



Lort-Phillips, Brock man, 50 ; near Hargeisa, liiva, &2. u Samples, 

 found at Burao, near the river bed and at Upper Sheikh. A good 



grass, but not plentiful. Height about 2 feet." — Appletotl. 

 DlSTR. From Tripoli to tropical Arabia and Socotra. 



Vern. Arabjeb (Drake-Brockman). See the preceding species. 

 Chiovenda also describes a var. altissinia from specimens collected 

 by Riva near Hargeisa, but the differences are so slight as to 

 suggest merely a case of individual variation. 



P. villosum, R. Br.; Engl. Veget. Somaliland, in Sitz. Ber. 

 Preuss. Ak. Wiss. Berlin (1904), 56 (reprint). 



Jebel Serut near Maid, 1,800 in., Hildebrandt, 1480. 



DlSTR. Abyssinia, tropical Arabia 



P. pachycladum, Chiovenda, I.e. vi., 167. 

 Habr Awal country, Bobecchi. 

 VERN. Garaw (Robecchi). 

 DlSTR. Endemic. 



Tricholaena rosea, Nees. 



Golis Range, in dry water- courses, Lort-Phillips, Drake-Brock- 

 man, 116. 



DlSTR. In several varieties all over tropical Africa, South 

 Africa and tropical Arabia. The Somali specimens correspond 

 to the form named T. grandiflora by Hochstetter. 



T. Teneriffae, Pari. ; Hook, f., Fl. Brit. Ind. vii., 65. 



Golis Range, Lort-Phtllijjs, Dralce-B rock wan, 115. 



DlSTR. From the Canaries to the Panjab, and southward to 

 Usambara. 



Anthephora Hochstetteri, Nees. 



Without precise locality, Drake-Brockman, 47. 



Vern. Hamashleh (Drake-Brockman). 



DlSTR. To Abyssinia and Nubia. 



Tristachya Bricchettiana, Chiovenda, I.e. v., 163, t. 14. 



