Rosaceæ. 



89 



that it is 4 — 6-merous in calyx and corolla, 'sometimes 

 purely so, but sometimes with one or other sepal broader 

 than the rest and cleft, a transitional stage to becoming two. 

 In some flowers the hypanthiuin is quite smooth in the 

 interior, in others it is, over the greater part of the surface 

 or only at the bottom, covered with long, stiff, thick-walled 

 hairs which are quite smooth exteriorly. In the male flowers 

 many pollen-grains were found between these hairs and 

 between the pistil-rudiments.'' 



In 1887 Lindman recorded Rub. chamæmorus from 



Fig. 34. Rubus chamæmorus. 



.1 .Male llower frum Arctic Norway: June 25 ( 2 /,). li. Female flower from 

 Greenland (*/,). C, Carpel of a male llower from Arctic Norway, in the hollow 

 a slight indication of the ovule is seen (**/,). D, The somewhat folded and 

 slightly lobcd stigma of a female flower from Arctic Norway (about "U). 

 Drawn by V, u g. W a r m i n g. 



Dovre (Scandinavia). He found only unisexual flowers with 

 very small rudiments of the other sex. In the female flowers 

 the petals were 8 — 10 mm., in the male flowers about 15 mm. 

 long. Axell 1 (pp. 46 — 48, Fig. 11, a, b) records Rub. ckamæm. 

 as trioecious-polygamous (quoted after Lindman). In 1903 

 Poppius mentions Rub. chamæm. In the female flowers he finds 

 slight or no secretion of honey; in the male flowers honey 



1 Om Anordningarne fur de fanerog. växternas bcfruktning. 1869 



