Artemisia Sieversiana Willd. Spec. PI. Ill, p. 1845; Ledeb. Fl. Alt. IV, p. 61; Turczan. 

 Cat. Baical. no. 622; Ledeb. Fl. Ross. II, p. 599; Turczan. Fl. Baical.-Dahur. (1846) p. 

 207, no. 626; Herder, PI. Radd. (1867) p. 239, no. 130; KptijL. $ji. Ajit. Ill (1904) p. 656. 



On saliferous soil on the Abakan Steppe, near Ust Kamuishto; only young specimens 

 were to be found in June. 



Distribution: South-eastern Russia and adjacent parts of Asia to Tibet, Cashmere 

 and the Himalayas, southern Siberia, eastwards to the Amoor Province, Mongolia, Man- 

 chooria, Corea, China. 



Tussilago Farfara L. Spec. PI. ed. II (1763) p. 1214; Ledeb. Fl. Alt. IV, p. 53; Karel. 

 et Kiril. Enum. PI. Fl. Alt. no. 421; Ledeb. Fl. Ross. IL p. 470; Herder, PI. Radd. (1865) 

 p. 374, no. 38; EpBur. cjj. Ajt. Ill (1904) p. 658. 



The leaves of this species I have found very frequently about Kushabar and in the 

 Amyl valley, in moist loamy places. 



Distribution: Europe, Caucasia, south-western Asia to Turkestan, the Himalayas 

 and Cashmere, Siberia, northwards to about 66° north lat., eastwards roughly to Lake 

 Baikal, North Africa. 



Petasites laevigalus (Willd.) Reichenb. Fl. Germ. Exc. (1830) p. 279. Tussilago laevi- 

 gata Willd. Spec. PI. Ill, p. 1969; Ledeb. Fl. Alt. IV, p. 54. Nardosmia laevigata (Willd.) 

 DC. Prodrom. V, p. 205; Ledeb. Fl. Ross. II, p. 467; KpBiJi. $ji. Ajit. HI (1904) p. 660. 



This is a plant of very common occurrence in the territory traversed, where 

 especially to be met with on shallow sands on the banks of rivers, among loose stones and 

 gravel in the river-bed, where it sometimes grows rather far out in the streams, even 

 where they are rather rapid. In such habitats it is a very characteristic plant. I have also 

 collected it in more muddy soil, in stagnant water on islets in the rivers Yenisei and Aba- 

 kan, and in streams between Minusinsk and Kushabar; very common in the Amyl valley, 

 on the rivers Sisti-kem and Kamsara, and in several places on the Bei-kem. The species 

 flowers at the beginning of June. 



Distribution: Bohemia (an escape from cultivation?), north-eastern Russia and Sibe- 

 ria, northwards to about 66^° north lat, eastwards roughly to the Yenisei, northern 

 Mongolia. 



Petasites frigidus (L.) Fries, Sum. Veg. Scand. p. 182. Tussilago frigida L. Fl. Suec. 

 no. 744; Ledeb. Fl. Alt. IV, p. 54. Nardosmia frigida Hook. Fl. Bor. Am. I, p. 307; Turczan. 

 Cat Baical. no. 578; Ledeb. Fl. Ross. II, p. 467; Turczan. Fl. Baical.-Dahur. (1846) p. 

 139, no. 566; Herder, PI. Radd. (1865) p. 371, no. 37; KpBM. «>ji. Ajit. HI (1904) p. 660. 



Scattered in subalpine tracts about the Algiac Pass, and on the Upper Sisti-kem, in 

 swampy places. Specimens in my collections, taken about the middle of July, have only 

 leaves. 



Distribution: Scandinavia and Finland, arctic islands, northern Russia, Siberia, east- 



426 



