164 



17. S. orientalis Trin. 



N. 672. Pamir, ou dry plains by Sary Mullah. Alt. 4100°. July 5. 1898. 

 N. 1020. Pamir, on dry slopes by the lake Jashil Kul, frequent. 

 Alt. SSOO». Aug. 1. 1898. 



var. trichoglossa Hack. n. var. 



Differt a typo praesertim ligula brevi dense breviterque ciliata 



(in typo glabra). 



N.404. Alai mountains, by Sufi Kurgan. Alt. 2400°. June 18. 1898. 

 N.683. Pamir, on dry plains by Sary Mullah. Alt. 4100°. July 5. 1898. 



X. Aristida L. 



18. A. plumosa L. 



N. 2198. Persia, prov Gilan, in the mountains by Batshinar. Sept. 18. 

 1899. 



19. A. pungens Desf. 



N. 1791. Buchara, in sandy desert by Chodsha Dawlet. June 10. 1899. 



20. A. pennata Trin. 



N. 235. Buchara, in sandy desert by Chodsha Dawlet. May 17. 1898. 

 N. 1746. Transcaspia, in sandy desert by Barachane. June 2. 1899. 



XI. Oryzopsis Michaux. 



21. 0. holdfor mis Hack. 



ß. songorica Hack. Urachne songorka Triu. 

 N.408. Alai mountains, by Sufi Kurgan. Alt. 2100°. June 18. 1898. 



22. Oryzopsis purpurascens Hack. u. sp. 



Perennis, caespitosa. Culmi circ. 3 dm. alti, erecti, teretes, sim- 

 plices, glaberrimi, superne breviter nudi. Vaginae superiores arctae, 

 innovationum dilatatae, internodiis raulto breviores, scaberulae. 

 Ligula exserta (circ. 4 mm. longa), obtusa. Laminae lineares, siccando 

 convolutae, acutae, 5 — 10 cm. longae, explicatae 2 mm. latae, glauces- 

 centes, subtus scaberulae, supra puberulae, margine scabrae. Panicula 

 pro magnitudine plantae spectabilis (18 — 26 cm. longa), ovato-oblonga, 

 laxissima, patens, subinterrupta, rariflora, ramis plorumque binis 

 (5 — 8 cm. longis) scaberulis maxima parte nudis, apice spiculas 

 1 — 2 (rarissime pluresj longiuscule pedicellatas (pedicello subterrai- 

 nali spiculam aequaute) gerentibus. Spiculae late lanceolatae, 8 mm. 

 longae, basi virides, superne amoene purpureae; glumae steriles subae- 



