the Yenisei valley northwards to 71" 20' norlii hit., eastwards to the Tshuktsher Peninsula, 

 Kanitchatka and the Anioor Pro\ince, northern Mongolia, Sakhalin. Japan, North Ame- 

 rica, Greenland. 



Vacciniuni vitis idaea L. Spec. PI. ed. II (1762) p. 500; Ledeb. Fl. Alt. II. p. 67; Tur- 

 czan. Gal. Baical. no. 760; Ledeb. Fl. Ross. II, p. 901; Turczan. Fl. Baical.-Dahur. (1848) p. 

 487, no. 736; Herder, PI. Radd. (1872) p. 312, no. IS; K|.hi.i. «D.i. A.it. Ill (1904) p. 783; 

 Ky3HeuoBi>, BepccKOiiwH m (I>e;;'ieHKO, i'-T. AaiaT. Pocciii 'J (UUG) p. 75. 



Rather common in the Sayansk district, in coniferous forest. The specimens collected 

 seemed, at least to judge from my material, generally to have the flowers somewhat smal- 

 ler than the Scandinavian ones. The corolla is generally shorter, wider and more open; 

 the length of the style in these specimens does not exceed 5 mm., while it is generally 7 

 mm. or sometimes still more in the Scandinavian ones. For the rest, the plants seemed 

 not to differ from Scandinavian material. Of pretty common occurrence in rather di-y 

 situations about the Upper Amyl, on the Sisti-kem, and about the Kamsara. Taken in 

 flower and partly past flowering about the middle of July. 



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

 level, I have collected specimens belonging to a very small form, only attaining a height of 

 2 to 3 cm. The leaves are broadly ovate to nearly orbicular, from 5 to 8 mm. long, 

 nearly sessile. The flowers are also rather small, from 3 to 4 mm. long, and rather open. 

 The raceme is few-flowered, only 2- or 3-flowered. The bracts are completely glabrous, 

 wanting marginal hairs as well, which is partly also the case in the sepals. The pedicels 

 are vei-y short, only about 1 mm. long. The year's shoots are very short, only about 

 5 to 10 mm. long. To judge from the number of the year's shoots, these specimens may 

 attain a pretty great age. I refer this form to /. piimiliiin Hornem., Lange, Gonsp. Fl. 

 Groenl. p. 90 (Vacciniiim vitis idaea var. microphylliim Hekder, 1. c). 



Distribution: Northern and middle Europe, southwards to France, northern Italy 

 and northern Turkey, Russia, from the Arctic Ocean southwards to Kiev and Orenbui-g, 

 Novaya Zemlya, Siberia, from the Ural to the Pacific Ocean, northern Mongolia, Manchoo- 

 ria, Sakhalin, Japan. North America, Greenland. 



P r i in u 1 a c e a e VEM. 



Primula patens Turczan. in Bull. Soc. Natural. Moscou (1838) p. 99. P. cortiisoides 

 L. /J patens Turczan. Fl. Baical.-Dahur. (1849) p. 291. P. sa.vatilis Komarow in Act. Hort. 

 Petropol. XVIII (1901) p. 429; Pax et Knuth, Primiilac. in Engl. Pflanzenr. H. 22 (IV. 237, 

 1905) p. 27. 



The specimens which I refer to this one, are large and vigoi'ous and distinguished by 

 their comparatively short-petioled leaves, the petioles 4—9 cm. long, that is, once to twice 

 as long as the blade. The shape of tlie blade is ovate, 4—6 cm. long, and 3'5— 5,5 cm. 

 broad, always distinctly, not unfrequently even deeply cordately indented at the base. 



344 



