и 



green in colour than are the older ones, which are more down- 

 wardly directed (Fig. 4 F). 



The flowers, numbering from two to six, are aggregated 

 in a terminal, umbelliform inflorescence which arrests the growth 

 of the branch, and which passes the winter protected by arched 

 scale-leaves (Fig. 4 F). The floral buds are larger and more 

 globose than are the vegetative ones (cf. Fig. 4 A and F). 

 No foliage -leaves occur between the scale-leaves and the 

 inflorescence. 



Fig. 4. Rhododendron lapponicum. (From Greenland.) 



A, Vegetative bud in early spring (June 19, 1887). К Branch with a floral terminal bud 



(from field in East Greenland bare of snow; Nov. 4, 1891). B, C, D, Various parts of its 



flowers (more highly mag.). E, Young flo\vers from the same floral bud. (E. W., 1907.) 



After flowering two or more new shoots arise immediately 

 below the dead apex of the shoot and dichotomy takes place. 



The flowers, which have large, thin bracts, scale-like and 

 curved, erect or more or less inclined, are formed during the 

 year previous to that in which they expand and reach in the 

 development of their different parts at least to the stages shewn 

 in Fig. 4 B—E. 



The corolla is widely bell-shaped (12 — 17 mm. wide) and 

 purple in colour; in its interior, immediately above its base, 

 it bears a ring of short hairs, probably as a protection to the 

 honey which is secreted by the low, ring-shaped and some- 



