Hoffm. 1. c.; Turczan. Cat. Baical. no. 551; Ledeb. Fl. Ross. II, p. 361; Kpbu. <l'j. A.it. II 

 (1903) p. 542. P. kamlschaticiim Hoffm. 1. c: Ledeb. Fl. Ross. II, p. 361. 



Common on islets in Ihe nver Abakan, in shady meadows and open brnsh-w ood, 

 where it begins flowering in the last days of June. 1 have also found it in the Urjankai 

 counti7, near the Sisti-kem, and on the Kamsara, on declivities near the river, neariy past 

 flowering in the first half of August. 



Distribution: Central and eastern Europe, westwards roughly to Switzerland, nearly 

 throughout Siberia, in the Yenisei valley northwards to 69K'° north lat., Kamtchatka, 

 northern Mongolia, Manchooria, Sakhalin, Japan. 



C r n a e e a e Li>K. 



Cornus alba L. Mantissa (1767) p. 40; Ledeb. Fl. Alt. I, p. 150; Turczan. Cat. Baical. 

 no. 556; Ledeb. Fl. Ross. II, p. 379; Turczan. Fl. Baical.-Dahur. (1845) p. 299, no. 544. C. 

 sibirica C. A. Meyer, Mem. Acad. Petropol. V, p. 206: Kpbi.i. <I).i. A.tt. 11 (1903) p. 545. 



Very common on islets in the rivers V^enisei and Abakan, where forming copse 

 wood to about 3 m. high, and where it begins flowering in the early days of June; more- 

 over, found scattered near Kushabar, and on islets in the Bei-kem and Ulu-kem. and also 

 on the river-banks, where I have collected it with fruits in the second half of August. 



Distribution: North-eastern Russia, throughout Siberia, northwards, about the river 

 Ob, to 64^ north lat., nortnem Mongolia, northern China, Manchooria, Sakhalin. 



P y r I a c e a e DlMORT. 



Pyrola rotundifolia L. Spec. PI. ed. II (1762) p. 567; Ledeb. Fl. Alt. II, p. 99; Bunge, 

 Enum. Alt. p. 20; Turczan. Cat. Baical. no. 750; Ledeb. Fl. Ross. II, p. 928; Turczan. Fl. 

 Baical.-Dahur. (1848) p. 505, no. 752; Herder, PI. Radd. (1872) p. 356, no. 54. P. rotun- 

 difolia L a albi flora Kpti.i. Oa. A.Tr. Ill (1904) p. 796. 



Scattered in the Aniyl taiga, in coniferous forest. In full flower in the middle of 

 July. 



siihspec. incarnata DC. Prodrom. YII, p. 773: Ledeb. Fl. Ross. II, p. 928; Turczan. 

 1. c. (1848) p. 506; Herder, 1. c. (1872) p. 357; Kptu. $j. A.tt. 1. c. (1904) p. 796. 



This subspecies, considered by some as a distinct species, much recalls the pre- 

 ceding one, but differs by being more vigorous, further by having the thick coriaceous 

 leaves, measuring 4—4,5 cm. in diameter, more or less distinctly cordately incised at 

 the base, and the margin slightly and regularly serrulate. The scape is 30—35 cm. long, 

 with scaly lanceolate — linear bracts, 1—1,5 cm. long, equalling or exceeding the pedicels. 

 Flowers vei-y loose, 8—20 in number, on comparatively long pedicels, 1 — 1,5 cm. long. 

 The sepals, as well as tlie petals, are of a i-eddish purple colour. The present subspecies 

 is frequently to be met with in the subalpine coniferous forest, and also follows the spurs 



336 



