The polypetalous corolla is saucer-shaped, about t cm. 

 across (Fig. 2); and white, or more rarely pink. The filaments 

 are white. The flower of the broad-leaved form has five to ten 

 stamens; the number varies because some of the antipetalous 

 stamens, which are always shorter than the antisepalous, 

 are often suppressed; in the flower of the narrow-leaved form 

 (f. decumbens), the number of the stamens is generally ten. ^ 

 The filaments are glabrous except in the lower part, a short 

 distance above the base, where they are covered with short 

 projecting hairs (Fig. 2 B, F); these hairs probably serve to 

 retain the honey. The anthers are glabrous and have no 

 appendages (Fig. 2 B, G,H). 



Fig. 2. A-H, Ledum palustre i. groenlandica ; J, L. palustre var. decumbens. 



(From West Greenland; July, 11, and 12, 1884.) 



A, Open flower. B, Stamens and pistil of a completely closed bud ; the pores are open. 



C, Pollen tetrad. D, Stigma seen from above. E, Base of the pistil. F, Base of a filament. 



в, H. Anthers. /, Open flower. (E. W., 1885.) 



The plant is protogynous for a short time and then homo- 

 garaous. The pores at the apex of the anthers are open in the 

 bud while the latter is still quite closed, and while the stamens 

 as yet are highly twisted and lie close to the pistil (Fig. 2 В 



^ Unlike Berggren (Fanerogamfloran, p. 856) 1 have been unable to find 

 any constant difference between the flowers of the narrow-leaved forms 

 and those of the broad-leaved (Fig. 2 A shews that of f. grönlartdica, 

 with 6 stamens and Fig. I that of f. decumhens). 



