164 



17. S. orientalis Trin. 



N. 672. Pamir, on dry plains by Sary Mullah. Alt. 4100». July 5. 1898. 

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

 Alt. 3800". Aug. 1. 1898. 



var. trichoglossa Hack. n. var. 



Differt a typo praesertiin 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 Gilau, in the mountains by Batshinar. Sept. 18. 

 1899. 



19. A. pungens Desf. 



N. 1791. Buchara, in sandy desert by Chodsha Pawlet. 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 Barachané. June 2. 1899. 



XI. OryzopsiS Michaux. 



21. 0. holciformis 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. Cuirai cire. 3 dm. alti, erecti, teretes, sim- 

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

 innovatiouum dilatatae, internodiis multo 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. Panic iila 

 pro magnitudiue plautae spectabilis (18 — 26 cm. longa), ovato-oblonga, 

 laxissiraa, patens, subinterrupta, rariflora, ramis plerumque binis 

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

 1 — 2 (rarissime plures) longiuscule pedicellatas (pedicello subtermi- 

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

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



