39 



Arctostaphylos Uva-ursi (L.) Spr. 



Warming, 1884, p. 46; 1885, p. 169; 1886 a, p. 18. Lindman, 

 1887 a, p. 70. H.Jonsson, Botan. Tidsskrift, 1895, p. 288. Poppids, 



1903, p. 43. Sylvén, 1906, I, p. 129. 



H. MÜLLER, 1881, p. 385, fig. 155. Schröter, Pflanzenleben, 



1904, pp. 152-157. 



Material from Greenland, Iceland and the extreme north of 

 Scandinavia. 



A prostrate, creeping dwarf shrub; the out-spread and 

 prostrate branches all occur above ground, but often in the 



Fig. 25. Arctostaphylos Uva-ursi. 

 A, B, F, G, H From Denmark; С from West Greenland; D, E from Iceland. A, Shews the 

 relative position of the buds and of the leaves. B, An inflorescence (July 21). C, Flovirering 

 branch (almost natural size). D, A young inflorescence, and a vegetative bud. E, A 

 flowering branch with buds in the act of expanding (June 23): HK, the primary bud; 

 1 to 5, the leaves. F, A seedling (Vi) with cotyledon (G) and primary leaf (Я). (E. W.) 



course of time the older ones become covered with soil and 

 plant-remains. The last of the year's shoots curve slightly 

 upwards, but afterwards become more horizontal (plagiotropic). 

 The plant has a centrifugal growth. The younger branches are 

 only sparingly furnished with adventitious roots; but these are 

 more abundant upon the older ones especially those covered 

 with soil, and one plant may break up into a number of inde- 

 pendent plants. The leaves are more or less vertical (Fig. 25 

 ^, C, E)^ and remain green upon the stems from two to three 

 years. 



