common in the Minusinsk district, for instance on the islets in the lower part of the river 

 Abakan, near Askys, Ust Kamuishto, Ust Abakansk, along road-sides, etc., in several 

 places between Minusinsk and Kushabar, where rather frequently to be met with in 

 the streets, on the river Amyl, near Petropawlowsk, and in the Urjankai country, near 

 Kamsara, and at Ust Tara-kem. Taken flowering and with young fruits in June and July. 

 Distribution: Europe, except the extreme northern portions, western and central 

 Asia to India and Tibet southwards, and the Pacific Ocean eastwards. Rather common 

 in the taiga and steppe regions of Siberia, scattered in -Mongoha and China, Japan, 

 North Africa, Introduced into North America:. 



Sisymbrium salsugineum Pallas, Reise Verschied. Statthaltersch. Russ. Reiches, p. 

 466 et 740; Ledeb. Fl. Alt. Ill, p. 145; Turczan. Cat. Baical. no. 164; Ledeb. Fl. Ross. I, p. 

 185; Turczan. Fl. Baical.-Dahur. (1842) p. 275, no. 155; KpbM. <D.i. A.it. I (1901) p. 95. 

 Arabidopsis salsugineum (Pallas) Busch, Cruciferae bi. $.1. CiiGiip. 11 Jl^ajiba. Boct. I 

 (1913) p. 136. 



On saliferous soil, on the Abakan Steppe, near Ust Kamuishto. Nearly past flower- 

 ing in the second half of June. 



Distribution: South-eastern Russia, Russian Turkestan, southern Siberia, eastwards 

 to Trans Baikal and Yakutsk. 



Isatis costata C. A. Meyer in Ledeb. Fl. Alt. Ill, p. 204; Karel. et Kiril. Enum. PI. Fl. 

 Alt. no. 116; Ledeb. Fl. Ross. I, p. 211 et 766; Eyiin,, Cruciferae b-i> <3?jr. C'liSup. it fl^ajibH. 

 Boct. I (1913) p. 160. 



/'. lasiocarpa (Ledeb.) Busch, 1. c. Isatis lasiocarpa Ledeb. Fl. Ross. I, p. 211 et 767; 

 KpLM. $ji. A.iT. I (1913) p. 113. Isatis hebecarpa C. A. Meyer in Ledeb. Fl. Alt. Ill, p. 

 205 (excl. syn.). Isatis costata f. hebecarpa Ledeb. Fl. Ross. I, p. 211. 



On dry rocky slopes on the river, near Minusinsk; with flowers at the end of June. 



Distribution: South-eastern Russia, Russian Turkestan, southern Siberia (southern 

 portions of the governments of Tomsk and Yeniseisk), northern Mongolia. 



Sinapis alba L. Spec. PI. ed. II (1763) p. 934; Ledeb. Fl. Ross. I, p. 218; Bvui-b, 

 Cruciferae bi $ji. Ciioiip. ii /I^ajn.H. Boct. I (1913) p. 164. 



On the Abakan Steppe, near Askys, in the neighbourhood of cultivated places. 

 With young flowers and flower-buds about the middle of June. 



Distribution: Europe, Caucasia, south-western Asia, India, Tibet, southern Siberia 

 (the governments of Tobolsk, Yeniseisk, and Yakutsk), the Canary Islands, North 

 America (introduced). 



Brassica campestris L. Spec. PI. ed. II (1763) p. 931; Ledeb. Fl. Alt. Ill, p. 212; 

 Turczan. Cat. Baical. no. 183; Karel. et Kiril. Enum. PI. Fl. Alt., no. 122; Turczan. Fl. 

 Baical.-Dahur. (1842) p. 293, no. 174; Eymi., Crucz/eroe bb^.t, CiKmp. 11 /I.a.'ii.H. Boct. I (Ui 13) 



258 



