Stipa sibirica (L.) Lam. Illustr. 1 (1791) p. 158; Ledeb. Fl. Alt. I, p. 82; Turczan. Fl. 

 BaicaL-Dahur. (1856, I) p. 15, no. 1296; Turczan. Cat Baical. no. 1271; Ledeb. Fl. Ross. 

 IV, p. 448; KptLT. <I>.i. A.it. VII (1914) p. 1562; PoiKeBimi., S-iara 111-bi, -fe^iTOHKO, $.i. Aaiar. 

 Pocciii XII (1916) p. 124. Avena sibirica L. Spec. PI. ed. II (1762) p. 117, 



On the steppes between Tapsa and Bjelosarsk, here and there accompanying the 

 preceding one. Done flowering in August. 



Distribution: South-western and central Asia, MongoUa, north-western China, 

 Sakhalin, Japan. 



Phleum pratense L. Spec. PI. ed. II (1762) p. 87; Ledeb. Fl. Ross. IV, p. 457; Kptur. 

 $j[. A.IT. VII (1914) p. 1572. 



In natural meadows, near Ust Sisti-kem. 



Distribution: Europe, temperate portions of Asia, North America. 



Phleum alpinum L. Spec. PI. ed. II (1762) p. 88; Ledeb. Fl. Alt. I, p. 73; Karel. et 

 Kiril. Enum. PI. Fl. Alt. no. 900; Ledeb. Fl. Ross. IV, p. 458; Kptu. $.i. A.rr. VII (1914) 

 p. 1573. 



Rather common in the Altaian, in sub alpine tracts of Avood as well as above the 

 limit of tree vegetation, ascending right up into the lichen belt. In full flower at the 

 end of July. 



Distribution: Europe, Asia Minor, central Asia, Siberia, eastern Asia, Japan, Nortli 

 and South America, Greenland. 



Phleum Boehmeri Wibel, PrimiL Fl. Werth. (1799) p. 125; Ledeb. Fl. Ross. IV, p. 

 456; Turczan. Fl. Baical.-Dahur. (1856, I) p. 6, no. 1283; Kpi>i.i. $.i. A.it. VII (1914) 

 p. 1574. Chilochloa Boehmeri P. de Reauv. Agrost. (1812) p. 158; Ledeb. Fl. Alt. L p. 

 85; Turczan. Cat. Baical. no. 1267; Karel. et Kiril. Enum. PI. Fl. Alt. no. 909. 



subspec. decurtatum nov. subspec. 



Glumis ab forma iypica differens siiperne obtusioribiis, paene rectis angulis seclis, 

 neque, ut in forma typica, superne sensim attenuaiis vel oblique truncatis. Glumae 

 semper valde scabrae. 



The glumes are rather short, the length being only about 2 mm., generally broadest 

 near the summit, where nearly cut off square, not tapering upwards or cut off obliquely, 

 as in the typical form, which will also appear from the drawings by Reichenb. Iconogr. 

 Fig. 1488, Andersson, Afbildningar Tab. XII, Fig. 132, and in Flora Danica Tab. 531, etc. 

 The awns are comparatively short, bent outwards, diverging. The glumes are slightly 

 scabrous on the keel, of a greyish-green colour, with a rather broad, membranous, 

 parchmentlike margin. 



By its rather truncate glumes our plant reminds somewhat of Phleum asperum 

 ViLL. and Phleum pratense L., from which, however, it is readily distinguished by its 

 structure for the rest. The glumes are not quite uniform, the lower one being broadest, 

 especially above, glabrous at the margin, the upper one somewhat narrower, and not so 



120 



