Matricaria ambigua (Ledeb.) Maxim, (in schedulis); KpBut. ^x. Ajit. Ill (1904) p. 

 625. Pgrethrum ambiguum Ledeb. Fl. Alt. IV, p. 118; Karel. et Kiiil. Enum. PI. FI. AIL 

 no. 447; Ledeb. FI. Ross. II, p. 547. 



In the Altaian, above the tree limit, at an altitude of about 2000 m. above sea-level, 

 in slightly moist places. In full flower at the end of July. 



Distribution: Arctic Europe, arctic Siberia, eastwards to the Tshuktsher Peninsula, 

 Turkestan,theThian-Shan, the Altai and Sayansk mountains, Manchooria, northern Japan, 

 North America, Greenland. 



Tanacetum vulgare L. Spec. PI. ed. II (1763) p. 1148; Ledeb. FI. Alt. IV, p. 60; Ledeb. 

 FI. Ross. II, p. 601; Turczan. FI. Baical.-Dahur. (1846) p. 208, no. 628; Herder, PI. Radd. 

 (1865) p. 417, no. 88; KpBM. $je. Ajtt. Ill (1904) p. 626. (Incl. T. boreale Fischer). 



Near the banks of the river Abakan, at Ust Abakansk, in shady places in thickets of 

 foliage trees. Only leaves in June. The species is also pretty common in the Sayansk 

 district, where observed by me in several places, especially near habitations, in the Amyl 

 valley, at Kushabar, Ust Algiac, Ust Sisti-kem, Ust Kamsara, and on the river Yenisei, be- 

 tween the Kemchik and Minusinsk. . In full flower in August. There occur here both /. 

 genuina Trautv. and /. boreale (Fisch.) Trautv. 



Distribution: Europe, except the extreme south, Caucasia, south-western Asia to 

 Turkestan, Siberia, northwards to past 70° north lat., eastwards to the Tshuktsher 

 Peninsula, Kamtchatka and the Amoor Province, northern Mongolia, Manchooria, Sakha- 

 lin. Introduced into North America. 



Artemisia Dracunculus L. Spec. PI. ed. II (1763) p. 1189; Ledeb. Fl. Alt IV, p. 88; 

 Turczan. Cat. Baical. no. 610, excl. var.; Karel. et Kiril. Enum. . PI. FI. Alt. no. 451;. 

 Ledeb. Fl. Ross. II, p. 563; Turczan. FI. Baical.-Dahur. (1846) p. 183, no. 601; Herder, PI. 

 Radd. (1867) p. 202, no. 96; KpBiJt. $ji. Ajit. Ill (1904) p. 633. 



On islets in the river Yenisei, in rather dry places, where collected with young 

 flower-buds in the last days of June. In the Urjankai country I have found the species on 

 the steppes about the Ulu-kem. 



Distribution: Middle and south-eastern Europe, Siberia, northwards to about 63° 

 north lat., and eastwards to the Sea of Okhotsk, northern Mongoha, Manchooria, south- 

 western Asia and Persia to Turkestan, Pamir, Afghanistan, and western Tibet. 



Artemisia glauca Pallas in Willd. Spec. PI. Ill, p. 1831; Ledeb. Fl. Alt IV, p. 87; 

 Turczan. Cat. Baical. no. 611; Karel. et Kiril. Enum. PI. Fl. Alt no. 452; Ledeb. FI. Ross. 

 II, p. 563; Turczan. FI. Baical.-Dahur. (1846) p. 184, no. 602; Herder, PL Radd. (1867) p. 

 203, no. 97; Kptw. Oji. Ajet. Ill (1904) p. 633. 



On the steppe on the river Abakan, near Ust Abakansk, on dry, hot declivities at 

 Ust Sisti-kem, on the Bei-kem, above the Tapsa, and on the steppes about the Ulu-kem. 

 Nearly past flowering in the last days of August. 



422 



