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

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

 IV, p. 448; KpLi.1. $.i. A.iiT. VII (1914) p 1562; PovKCBimh, 3.iai;ii III-ut, '&c^whi;(i. $.1, Ayiar. 

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



On the steppes between Tapsa and Bjelosai'sk, here and there accompanying the 

 preceding one. Done flowering in August. 



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

 Sakhalin, Japan. 



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

 •D.T. A.1T. VII (1914) p. 1572. 



In natural meadows, near Ust Sisti-kem. 



Distribution: Europe, temperate portions of Asia, North .\merica. 



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

 Kiril. Enum. PL Fl. Alt. no. 900; Ledeb. Fl. Ross. IV, p. 458; Kin.i.i. «I\i. A.n. VII (1914) 

 p. 1573. 



Rather common in the Altaian, in sub alpine tracts of wood 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 A.sia, Japan. North 

 and South America, Greenland. 



Phleum Boehnieri Wibel. Primit. Fl. Werth. (1799) p. 125; Ledeb. Fl. Ross. IV, p. 

 456; Turczan. Fl. Baical.-Dahur. (1856, I) p. 6. no. 1283; 1,'im.i.i. <I>.i. Am: VII (1914) 

 p. 1574. Chilochloa Boehnieri P. de Beauv. Agrost. (1812) p. 158; Ledeb. Fl. Alt. I, p. 

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



subspec. decurtatuni nov. siibspcc. 



Gliimis ab forma lijpica difj'erens superne obtiisioribus. paene irclis angulis seclis. 

 neque, iit in forma ti/pica, superne sensim attenualis vel obli(iue truncalis. (ilumae 

 semper valde scabrae. 



llie 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 Rkichem! Iconogr. 

 Fig. 1488, Ani)i:p.ssox, Afbildningar Tab. XII, Fig. 132, and in Flora Danica Tab. 531, etc. 

 4'he 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 nsperum 

 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 low er one being broadest, 

 especially above, glabrous at the margin, the upper one somewhat narro\A cr. and not so 



120 



