Distribution: Middle Europe, southwards to northern Italy and the north of the Bal- 

 kan Peninsula, northwards in Finland and Sweden, the Caucasus, Siberia, eastwards to 

 Trans Baikal. 



E u p h r b i a c e a e ST. HiLAlRE. 



Euphorbia altaica C. A. Meyer in Ledeb. Fl. Alt. IV, p. 190; Ledeb. Fl. Ross. Ill, p. 565; 

 KpBM. $ji. A.itT. V (1909) p. 1189. 



In the Altaian, on the Upper Sisti-kem, in alpine meadows about the limit of tree 

 vegetation, where rather common. Collected with young fruits at the end of July. 



Distribution: Russian Turkestan, the Altai and Sayansk districts. 



Euphorbia alpina C. A. Meyer in Ledeb. Fl. Alt. IV, p. 186; Bunge, Enum. Alt. p. 81; 

 Turczan. Cat. Baical. no. 1003; Ledeb. Fl. Ross. Ill, p. 561; Turczan. Fl. Baical.-Dahur. 

 (1854) p. 357, no. 1005; Regel, PI. Radd. (1892) p. 353, no. 113; KptM. $jr. Ajit.. V (1909) 

 p. 1187. 



On stony, grass-grown slopes in the subalpine taiga territory about the Upper Amyl 

 and the Upper Algiac, near the limit of tree vegetation. In full flower about the middle 

 of July. 



Distribution: Southern Siberia, from the government of Tomsk eastwards to about 

 Irkutsk and Trans Baikal, where occurring rather sparingly. 



Euphorbia lutescens C. A. Meyer in Ledeb. Fl. Alt. IV, p. 194; Karel. et Kiril. Enum. 

 PI. Fl. Alt. no. 814; Ledeb. Fl. Ross. Ill, p. 568; Herder, PI. Radd. (1892) p. 354, no. 116 et 

 468; KpBijr. cDji. Ajit. V (1909) p. 1190. 



On the Bei-kem, near Ust Sisti-Kem, and at Utinski porog, in moist meadows and 

 thickets; in the Altaian, on the Upper Sisti-kem, it ascends right up to above the tree 

 limit, where found by me in abundance, with ripe fruits in July. 



Distribution: Southern Siberia (southern parts of the governments of Tomsk and 

 Yeniseisk, northwards to 61° north lat), northern Mongolia. 



Euphorbia Esula L. Spec. PI. ed. II (1762) p. 660; Ledeb. Fl. Alt. IV, p. 181; Tur- 

 czan. Cat. Baical. no. 1005; Karel. et Kiril. Enum. PI. Fl. Alt. no. 807; Ledeb. Fl. Ross. 

 Ill, p. 575; Turczan. Fl. Baical.-Dahur. (1854) p. 359, no. 1007; Herder, PI. Radd. (1892) p. 

 354, no. 118 et p. 367, 468; Kptijr. $jr. Ajit. V (1909) p. 1192. 



Very common on the Abakan Steppe, in dry, grass-grown places, in gravelly and 

 sandy localities, near cultivated fields, etc., where I have collected it with flowers in the 

 middle of June. The specimens collected partly belong to /. genuina Boiss. (in DC. 

 Prodrom XV, p. 160), partly to /. cyparissioides Boiss. (1. c. p. 161. E. caesia Karel. et 

 Kiril. Enum. PI. Fl. Alt. p. 743. E. Cyparissias /3 pubescens Ledeb. Fl. Alt. IV, p. 180. E. 

 Cyparissias L. Turczan. 1. c. p. 359, no. 1008; Herder, PI. Radd. (1892) p. 359, no. 122). I 

 have also found the species near habitations at Ust Kamsara, with fruits in August. 



320 



