24 
short time (Warmine, Exstam), according to Linpmax protogynous- 
homogamous (Norway, the Dovre). 
As the anthers dehisce in the still incompletely open 
flower, and the stigma may also be shiny, pollination will, in 
all probability, take place immediately the flower expands (Fig. 
14 D). Pollen is at that time seen shed and lying on the inner 
parts of the flower. 
Honey is secreted by the slightly lobed, ring-shaped disk 
at the base of the ovary (Fig.15 C) and appears to be retained 
there between and outside the basal parts of the stamens; 
Fig. 14. Cassiope hypnoides. 
4, The flower still in a bud; 4/1 (Disko; July 20, 1884). 8, A flower is within the bud 
(Upernivik; Sept. 2. 1886). C, Pollen tetrad. D, Even in a flower of this age the anthers 
are open, and the pollen has fallen out (Disko; July 22, 1884). 2, Apex of the style shewing 
stigma covered with mucilage. #, Base of a peduncle with the surrounding leaves (those 
in front have been removed). G, Capsule. (E. W.) 
in effecting this the small warts on the filaments (Fig. 15 F) 
most probably play a part. 
Self-pollination as well as cross-pollination by insects appears 
to be able to take place. According to SxorrsserG the flowers 
are slightly fragrant in Lapland and are visited by Bombus 
lapponicus. | 
The plant sets ripe fruit in East and West Greenland, in Iceland 
and in Scandinavia (Fig. 13; Fig. 14 G). In West Greenland | 
have seen specimens which had abundant fruit from the previous 
year, but were barren in the present year. Norman and Haczunn 
have made similar observations; therefore it may be assumed 
that flowering and barren years alternate. 
