184 



Fr. J. Mathiesen. 



In the first case self-pollination may yet be possible and 

 comparatively easy, while in the latter, it is rendered very 

 difficult, or well nigh impossible, the flower being in an erect 

 position all through. This greater length of the style is not 

 caused by growth during flowering, as, in all the many spe- 

 cimens of buds examined, I have always found the same 



Fig. 10 A— D, Primula farinosa, var. groenlandiça, from Greenland 

 (Itivnek near Holsteinsborg). 



A, the whole plant and an isolated inflorescence, natural size. B, longitudinal section 



of a flower. C, the corolla-limb seen from above ; the stigma surrounded by the anthers 



is seen through the throat ( s /i). D, an anther. 



E — F, Primula stricta, from Alten Fjord, Finmark. 



E and F, longitudinal section of two flowers. G, the limb of the corolla, seen from above, 



( s /i). B, stigma and anthers are at the same level at *. /, longitudinal section of a 



long-styled flower. (From Warming 1886.) 



relative lengths, the stigma being placed at a higher level, 



than in the specimens from Greenland Only once I 



have found an inflorescence, the two flowers of which might 



