rivers Yenisei and Abakan; although numerous intermediate forms are to be found 

 there as well. The species mostly past flowering in the second half of June. 



Distribution: Salix viminalis is spread over Europe, northwards (in Norway) to 

 64° 12' north latitude (planted), Asia Minor, Trans Caucasia, Turkestan, Armenia, Dzun- 

 garia, Punjab, the Himalayas, Siberia, in the Yenisei valley northwards to 72° 15' north 

 latitude, northern Mongolia, eastern Asia, Sakhalin, Japan, North and South America 

 (planted). The two subspecies mentioned, are eastern, mostly Asiatic forms. 



Salix triandra L. X viminalis L. Enander in lift. f. filameniis basi pilosis. 



On the margins of an islet in the river Abakan, near Askys. In full flower in the 



middle of June. 



According to Enander (in litt.) at least some of the specimens described as S. 



viminalis subspec. Gmelini may really be considered as hybrids between S. triandra 



and S. viminalis. The forms in question have light, yellowish-brown catkin-scales, 



and the ripe capsules only slightly shorter than the catkin-scale. 



Salix cinerea L. X viminalis subspec. Gmelini f. subviminalis Enander. 



In my collections I have 2 sheets of this form, taken on an islet in the Yenisei, 

 near the banks of the river, about half-way between Minusinsk and Ust Abakansk. With 

 half ripe capsules at the beginning of June. 



Salix caprea L. Spec. PI. ed. II (1763) p. 1448; Wimmer, Salic. Europ. (1866) p. 

 55; Anderss. Monogr. Salic. I (1867) p. 75, no. 45; Bojii.(|)i., Hbm EBpon. Pocciii II, n. 

 66; Ledeb. Fl. Alt. IV, p. 268 (excl. syn. Salix phlomoides Marsch.-Bieb.) Turczan. 

 Cat. Baical. no. 1031; Ledeb. Fl. Ross. Ill, p. 609; Turcan. Fl. Baical.-Dahur. (1854, I) p. 

 383, no. 1032; Herder, PL Radd. (1892) p. 402, no. 138; Kptu. $.1. Ajit. V (1909) p. 1215. 



Scattered in thickets, and the like, along brooks in several places between Kusha- 

 bar and Minusinsk, near Ust Algiac, on the Dora Steppe, on the Upper Bei-kem. 



Distribution: Europe, northwards to 69° 40' north latitude, the Caucasus, Asia 

 Minor, Persia, Russian Turkestan, Siberia, in the Yenisei valley northwards to 69° 

 north latitude, northern Mongolia, eastern Asia, Sakhalin, Japan. 



Salix arbuscula L. Spec. PI. ed. II (1763) p. 1445; Wimmer, Salic. Europ. (1866) p. 

 102; Anderss. Monogr. Salic. I (1867) p. 145, no. 80; Ledeb. Fl. Ross. Ill, p. 622; Turczan. 

 Fl. Baical.-Dahur. (1854, I) p. 392, no. 1048; Bojib^^, Hbbi Espon. PoccIh II, n. 91; 

 Herder, PI. Radd. (1892) p. 417, no. 150; KpBiji. (Dji. Ajit. V (1909) p. 1216. Salix 

 prunifolia Ledeb. Fl. Alt. IV, p. 286; Turczan. Cat. Baical. no. 1048. 



In the Altaian, above the limit of tree vegetation, near a mountain brooklet. With 

 ripe, and nearly ripe capsules at the end of July. 



Distribution: Arctic and alpine regions of Europe, Caucasia, Russian Turkestan, 

 the Thian Shan, Siberia, in the Yenisei valley to 72° north latitude, northern Mongolia 

 (Sayansk district), eastern Asia (southwards to the north of China), North America, 

 Greenland. 



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