L i 11 a c e a e Dumort. 



Linum perenne L. Spec. PI. ed. II (1762) p. 397; Ledeb. Fl. Ross. I, p. 426. L. sibiri- 

 cum DC, Ledeb. Fl. Alt. I, p. 440; Turczan. Cat. Baical. no. 272; Karel. et Kiril. Enum. PI. 

 FI. Alt. no. 180; Turczan. Fl. Baical.-Dahur. (1842) p. 617, no. 261; KpBM. 1>ji. A.it. I 

 (1901) p. 182. 



Scattered in the steppe area about the river Abakan, and between Minusinsk and 

 Kushabar, where chiefly occurring in dry meadows, on rocks, etc. The species varies 

 considerably according to the nature of the habitat. On dry, sandy steppes, and on dry, 

 sunny rocks, as for instance on the Abakan Steppe, it is of a lower growth, on an average 

 15—20 cm. high, rarely up to 30 cm. high, simple or only slightly ramified in the upper 

 part, with numerous, dense, appressed-ascending, filiform, one-nerved leaves, the margjins 

 of which are distinctly revolute, or even nearly inroUed. The pedicels are comparative- 

 ly short, the sepals equal, subobtuse, or only with a minute point at the summit, without 

 distinct ribs. The whole plant is completely glabrous, of a dull, glaucous colour. This 

 form seemed to be nearly allied to /. bavaricum (Schultz) Aschers. et Graebn. Synops. 

 VII (1914) p. 203. 



In moister places, on the contrary, it attains a greater height, and is more flowery; the 

 leaves are more distant and broader, and often considerably longer, to 2 cm. long, nearly 

 lanceolate, generally 3-nerved; the sepals, at least in their lower parts, with 3 or 5 distinct 

 ribs, and frequently distinctly acuminate at the apex, /. latifolium R. Beyer, Verb. B. 

 V. Brandenb. XCIV (1899). 



All intermediate forms, however, are to be found between these, according to the 

 conditions of the soil. The species begins flowering in the second half of June. Withering 

 remains of this species have also been found by me on the steppes on the Ulu-kem, at the 

 beginning of September. 



Distribution: Southern Europe,' the Caucasus and south-western Asia to Tibet and 

 the Himalayas, India, Siberia (also in the arctic parts), northern Mongolia, Japan. The 

 species has also been reported from North America, which, however, is probably due to a 

 mistake of identity with the nearly allied L. Lewisii Pursch. 



Polygalactaceae JUSS. 



Polygala sibiricum L. Spec. PI. ed. II (1763) p. 987; Ledeb. Fl. Alt. Ill, p. 248; Tur- 

 czan. Cat. Baical. no. 211; Ledeb. Fl. Ross. I, p. 269; Turczan. Fl. Baical.-Dahur. (1842) p. 

 312, no. 199; Regel, PI. Radd. (1861) p. 517; Chodat, Monogr. Polygala in Mem. Soc. Phys. 

 Geneve XXXI, 2 (1893) p. 347; KpBM. $ji. Ajit. 1 (1901) p. 130. 



Of rather common occurrence in the tracts about the Lower Abakan, especially in 

 dry meadows, on rocks, etc., where it begins flowering in the middle of June. The speci- 

 mens collected belong to f. latifolia Ledeb. 



Distribution: Siebenbiirgen, middle and southern Russia, the Caucasus, Afghanistan, 

 the Himalayas, southern Siberia, northern Mongolia, eastern Asia, Japan. 



318 



