166 



simplices, apice longe nudi, graciles, 3-nodes, nodo summo in ^/s 

 inferiore site. Vaginae laxiusculae, internodiis multo breviores, gla- 

 berrimae. Ligula ovata, obtusa, 3 — 4 mm. longa. Laminae lineares, 

 acutissimae, planae, flaccidulae, virides, glabrae, subtus laeves, supra 

 nervis scaberulae, margiue scabrae. Panicula oblonga, patula, 

 laxiuscula (ad 18 cm. longa 4 cm. lata), rhachi glaberrima, ramis 

 3 — 5nis subcapillaribus scabris a V4 inferiore vel (breviores) jam a 

 basi divisis et spiculiferis, longioribus bis terve divisis, spiculis 

 secus ramos subaequaliter dispositis, pedicellis spiculis aequilongis 

 v. (in subtermiualibus) iis duplo brevioribus clavatis fultis. 



Spiculae, dum clausae sunt, lanceolatae, 2 mm. longae, pallide 

 virides: glumae steriles aequales, lanceolatae, acutae, 1-nerves, 

 carina aculeolato-scabrae ; gluma fertilis sterilibus paullo brevior, 

 ovalis, truncata, apice obsolete denticulata, 4-nervis, dorso inferne 

 scaberula, callo nudo, in medio dorso aristam exserens rectam 

 gracilem circ. 3 mm. longara e glumis breviter exsertam. Palea 

 gluma sua duplo brevior, ovalis, rotundato-truncata, obsolete binervis, 

 antherae 3, oblongae, 0,8 ram. longae, albidae. Ovarium lineari- 

 oblongum; caryopsis l(immatura) lineari-oblonga, ventre macula 

 hilari lineari fere ^/e caryopseos aequante notata. 



Ex affinitate A. albae L., quae differt rhizomate stolonifero, 

 gluma fertili plerumque mutica, 3-nervi, palea quam gluma ^U brevior, 

 antheris fere duplo majoribus (1,5 mm. longis), caryopsi elliptica. 



N. 1226. Pamir, by a spring by Djangarlik near the river Pamir Daria. 

 Alt. 3800». Sept. 6. 1898. 



XIV. Apera Adans. 



27. Å. interrupta Beauv. 



N. 153a. Transcaspia, by Kunikud. May 10. 1898. 



XV. Calamagrostis Roth. 



28. C. pseudophragmites Baumg. 



N. 1035. Pamir, by the lake Jashil Kul. Alt. 3800». Aug. 4. 1898. 

 N. 1335a. Pamir, prov. Wakhan, in thickets by the river Pandsh, by 



Langarkisht. Alt. 3000». Sept. 9. 1898. 

 N. 1336. Ibid. 

 N. 1369. Ibid. Sept. 9. 1898. 



