29 

 Andromeda polifolia L 



Warming, J886, p. 18, Fig. 6. Lindman. 1887, p. 70. Kihlman, 

 1890, p. 155. Ekstam, 1894, p. 427. Poppius, 1903, p. 43. Sylvén, 

 1906, I, p. 129. 



Observations and material from West Greenland; Tromsö 

 (Norway); Denmark. 



An erect, everj^reen dwarf shrub (about 3 — 4 dm. high), 

 sparingly branched; the slender, far-reaching subterranean run- 

 ners have long internodes, bear scale-leaves, and have a straight 

 apex (Fig. 19 A, D). The roots given off by the runners are 

 very slender and abundantly branched ; they arise from the axils 

 of the leaves (Fig. 19 B, E). 



Fig. 19. Andromeda polifolia. (From Denmark; Aug. 5, 1887.) 



.-1, Runner. B, Portion of a runner shewing a branch and a root both situated in the axil 



of a scale-leaf. C, A similar runner. D, The apex of a runner. E, Portion of a гшшег 



shewing a branch with a root above. (E. W., 1907.) 



The year's shoots have scale-leaves at their bases. The 

 axillary buds are partly protected by the erect petioles (Fig. 20 ^). 

 The more vigorous of the lateral shoots arise from the axils of 

 the uppermost leaves, i. e. those below the terminal inflores- 

 cence, and the uppermost shoot often forms a sympodium to- 

 gether with the parent stem. 



The leaves are coriaceous and articulate, and remain fresh 

 throughout at least one winter; they are strongly glaucous 

 beneath and have revolute margins (Fig. 20 A\. 



The flowers are few in number (from one to five) and 

 occur on long red stalks in an umbelliform raceme ; they are 

 secund and drooping. The lowermost may be in the axils of 



