wards as far as the Tshuktsher Peninsula, Kamtchatka and the Amoor Province, north- 

 ern Mongolia, North America. 



DoTonicum altaicum Pallas in Act. Petrop. VI (1779) p. 271; Ledeb. Fl. Alt. IV, p. 

 113; EptiJi. #jt. Ajit. Ill (1904) p. 661. Aroniciim altaicum (Pallas) DC. Prodrom. VI, p. 

 320; Karel. et Kiril. Enum. PL Fl. Alt. no. 482; Ledeb. Fl. Ross. II, p. 624; Turczan. Fl. 

 Baical.-Dahur (1847) p. 12, no. 636; Herder, PI. Radd. (1867) p. 425, no. 148. Arnica altaica 

 Turczan. Cat. Baical. no. 646. 



This pretty alpine plant is rather common in the Altaian, above the tree limit, especi- 

 ally in humid soil, inundated by water from melting glaciers. I have collected it in full 

 flower at the end of July. 



Distribution: The Thian-Shan, the Altai and Sayansk regions, eastwards roughly 

 to Lake Baikal. 



Ligularia sibirica Cassini in Diet. Sc. Nat. XXVI, p. 401; Ledeb. Fl. Ross. II, p. 460; 

 Turczan. Fl. BaicaL-Dahur. (1847) p. 10, no. 634; Herder, PI. Radd. (1867) p. 426, no. 149; 

 KpLM. $ji. Ajit. Ill (1904) p. 662. Cineraria sibirica L., Ledeb. Fl. Alt. IV, p. 102; Turczan. 

 Cat Baical. no. 643. 



In moist, grass-grown places along the banks .of the river Sisti-kem. In full flower in 

 July and August. 



Distribution: Middle Europe, northern and middle Russia, the Caucasus, the Hima- 

 layas, Siberia, eastwards to the Amoor Province and Manchooria, Sakhalin, Japan, 

 China, northern Mongolia. " 



Cacalia hastata L. Spec. PL ed. II (1763) p. 1170; Ledeb. Fl. Alt. IV, p. 52; Karel. et 

 Kiril. Enum. PI. Fl. Alt. no. 483; Ledeb. Fl. Ross. II, p. 626; Turczan. Fl. Baical.-Dahur. 

 (1847) p. 13, no. 637; Herder, PI. Radd. (1867) p. 420, no. 140; KpBM. $jt. Ajit. Ill (1904) 

 p. 665. Ligularia hastata Less., Turczan. Cat. Baical. no. 645. 



Very common in brush-wood on islets in the rivers Yenisei and Abakan, where I 

 have collected flowerless specimens in the month of June. I have also observed this 

 very characteristic plant near Kushabar, Viith young flower-buds in the middle of July. 

 It is, besides, rather frequent in the Urjankai country: near Ust Algiac, at Ust Sisti-kem, 

 Ust Kamsara, and about Ust Tara-kem, where collected by me in full flower and with ripe 

 fruits in the second half of July and in August. All of the specimens collected have the 

 under sides of the leaves densely hairy, and, accordingly, belong to /. pubescens Ledeb. 

 Fl. Ross. II, p. 626. 



Distribution: Northern and eastern Russia, Siberia, northwards to Q8'A° north lat., 

 eastwards to Kamtchatka and the Amoor Province, northern Mongolia, Manchooria, 

 Corea, northern China, northern Japan, Alaska (var.). 



Senecio Jacobaea L. Spec. PL ed. II (1763) p. 1219; Ledeb. Fl. Alt. IV, p. 110; Ledeb. 

 FL Ross. II, p. 634; KpBiJi. "Sji. Ajit. Ill (1904) p. 672. S. praealtus in Ledeb. Fl. Ross. II, 



p. 634. 



427 



