382 
FLORA OF ADEN. 
Note . — “ Species glumis hirtis, flosculo muriculato, aristis longis 
ab A. plumosa et brachypocda facile distingue^a.” Boiss. l.c, 
6, Aristida plumosa Linn. Sp. PI. ed. 2, p. 1666 ; Willd. Sp. PI. I, 
460 ; Yalil Symb. I, 11, t. 3 ; Trin. Diss. I, 181, II, 26 ; in Afct. Petrop. 
(1829) 89 ; Trin. & Rupr. in Mdm. Acad. Pdtersb. ser. 6, V (1842) 165 ; 
Kunth Enum. PI. I, 195, II, 151 ; Steud. Syn. PI. Glnm. I, 143 ; 
Aitchis. Cat. Panj. PI. 164; Boiss. FI. Or. V, 495; Duthie Grass. N.W. 
Ind. 26, Fodd. Grass. N. Ind. 47 ; Hook. FI. Brit. Ind. VII, 228 ; 
Durand & Schinz. Consp. FI. Afr. V, 807. 
Aristida lanata Forsk. FI. Aegypt.- Arab. 25. 
Aristida Raddiana Savi in Mem. Moden. (1837), 198 ; Steud. l.c. 
144. 
Arthratherum plumosum Nees FI. Afr. Austr. I, 182 ; Coss. & 
Durieu Expl. Scient. Alg6r. II, 81 ; Batt. et Trab. FI. d'Alg. p. 56. 
Stipagrostis plumosa Munro Mss. in Herb, Benth.; Anders. Jourm 
Linn, Soc. V, Suppl. p. 40. 
Description Csespitose, perennial ; stem 1-2 feet bigb, from a 
stout branching woody stock with stout rigid roots. Leaves 2-6 inches 
long, rigid, filiform, convolute, flexuous ; ligule reduced to a setose ring * 
sheaths of leaves and internodes tomentelious or woolly. 
Panicle 2-3 inches long (excl. the awns), narrow, racemiform. 
Spikelets erect ; glumes glabrous, unequal, lanceolate, acuminate, the 
upper longer ; lower palea one-third as long the glumes ; awn naked ; 
middle bristle ^ naked, the rest feathery, three to five times as long as 
the lateral bristles. 
Locality : — Upper end of great valley between Steamer Point and 
town (Marchesetti) ; without locality (Edgew., Hook., Anders., Birdw.). 
Distribution : — Morocco, Algeria, Tunis, Egypt, Abyssinia, Syria, 
Arabia, Kurdistan, Persia, Afghanistan, Western Tibet (7,700 feet). 
7. Aristida mutabilis Trin. & Rupr. in Mdm. Acad. Pdtersb. Ser. 
VI, VII (1849) 150 (excl. var. aequilonga) ; Walp. Ann. Bot. Ill, 745 ; 
Steud. Syn. PI. Glum. I, 141 ; Hook. f. FI. Brit. Ind. VII, 226. 
Aristida articulata Edgew. in Journ. Linn. Soc. VI (1862) 209 ; 
Aitch. Cat. Panj. PI. 164; Duthie Grasses N. W. Ind. 26, Fodd. Grass. 
N. Ind. 47. 
Aristida Kunthiana et meccana Trin. & Rupr. l.c. 151 (ex descr.) ; 
Steud. l.c. 141. 
Aristida Schweinfurthii Boiss. FI. Or. V, 493. 
Aristida spicata Rottl. Mss. (ex Hooker £, 1, c.) . 
