1062 



Oxyria digyna (L.) Campd. — Fl. p. 71. — (Trangisvaag, July). 

 Flowers drooping and wind-pollinated, somewhat protogynous. 

 Staminate and pistillate flowers also occur. Fruits abundantly, 

 sometimes every flower sets seed. 



Papaver radicatum Rottb. — Fl. p. 70. — (August). In the 

 young, still half-closed, homogamous flower spontaneous self-polli- 

 nation takes place. 



Pedicularis palustris L. — Fl. p. 56. — (Trangisvaag, July). The 

 flowers appear to resemble the Danish ones. In a young, still un- 

 expanded flower the white anthers are unopened and filled with 

 loose, white pollen. The stigma is above them, not yet ripe. If the 

 anthers are opened artificially the pollen falls out. In older flowers, 

 which still contain pollen, the stigma is situated above the anthers, 

 but somewhat nearer to the mouth, below the upper lip. The 

 stigma does not stand out freely. Spontaneous self-pollination ap- 

 pears to take place. 



Pinguicula vulgaris L. — Fl. p. 48. — (Trangisvaag). July 16, 

 flowering almost over. Spontaneous self-pollination occurs, being 

 due to the stigma rolling backwards, down into the pollen of the 

 open anthers. Ustilago antherariim appears to be common. 



Plantago maritima L. — Fl. p. 49. — (Trangisvaag). The anthers 

 are white and the styles are yellowish. Slight protogyny. Is vi- 

 sited by Scatophaga stercoraria. 



Polygala serpyllacea Weihe. — Fl. p. 71. — (Trangisvaag, July). 

 The flowers are closed for the most part. Spontaneous self-polli- 

 nation undoubtedly takes place ; masses of pollen may be seen 

 upon the stigma, which have undoubtedly been shed from the 

 anthers of the same flower. Fruit is often set in every flower. 



Potamogeton polygonifolius Pourr. — Fl. p. 95. — (Trangisvaag). 

 Wind-pollination takes place. The flowers were setting fruit July 26th. 



Potentilla erecta (L.). — Fl. p. 77. — (Trangisvaag, July). The 

 flower is 13 — ^16 mm. in diameter. The petals spread horizontally. 

 The anthers are remote from the pistils in the middle; they do 

 not dehisce in rainy weather. The flowers are visited by Aricia 

 variabilis. 



Potentilla anserina L. — Fl. p. 77. — (Trangisvaag). The dia- 

 meter of the flower is 20 — 25 mm. Honey is secreted at the yellow 



