456 Fr, J. Mathiesen, 



edges of the helmet, above the revolute portion. The corolla- 

 tube is somewhat hairy within, in its lower part. 



The length of the style and the position of the stigma 

 varied greatly, even in flowers from the same plant. The 

 relatively longest-styled flower in my material was the one 

 shown in Fig. 34, 5; the plant to which it belonged came 

 from Ellesmere Land; Fig. 34, A shows a not yet open flower 

 from the same plant. From Ellesmere Land I have, how- 

 ever, also had flowers in which the style was so short that 

 it hardly reached outside the tip of the helmet, whilst in 

 others it protruded 1 — 2 mm outside, but was bent more or 

 less decidedly upwards. 



In several specimens from King Point there were flowers 

 in which the end of the style was bent so strongly inwards, 

 that it came to lie within the edges of the helmet, close up to 

 the anthers. Some flowers from the Island of Iglorlik showed 

 that, in the older ones, the point of the style may be bent 

 more inwards than in the younger ones of the inflorescence; 

 anything corresponding to this I have, however, not succeeded 

 in confirming in flowers from the other localities. With the 

 exception of the cases in which the stigma protrudes slightly, 

 self-pollination by falling pollen must easily be able to take 

 place, naturally, more especially where the stigma, is bent 

 close under the anthers. 



According to Simmons P. capitata flowers on Ellesmere 

 Land at the beginning of July, and in most years does not, 

 in all probability, succeed in setting fruit there, for which 

 reason it will often be under the necessity of reproducing 

 itself vegetatively by means of its runners. 



As regards its habitat, Simmons remarks, that the spe- 

 cies grows chiefly in marshy soil, but may also be found 

 in drier localities where, however, the inflorescence becomes 

 poorer (1 — 2 flowered). 



