296 EuG. Warming. 



some are perhaps sometimes normal); but in the highest 

 degree of reduction the anthers are transparent, without 

 the least trace of pollen-grains. The stigmatic papillæ are 

 also here longer than in y (see Fig. i^ and h^). 



7. Stellaria graminea L. p. p. (Fig. 29). 



Denmark. Gynodioecism ; ^ > $, distinctly or less 

 distinctly protandrous. 



^: Protandry, with the stamens performing movements 

 towards the middle of the flower and back again. The anthers 

 turn more or less outwards or even backwards. As a rule 

 self-pollination may ultimately take place, but 1 have seen 

 flowers which had lost their anthers before the styles spread 

 out. The anthers are flesh-coloured or become ultimately 

 somewhat brownish, the pollen is yellow in colour. The 

 styles are covered with stigmatic papillæ along the upper ^/4 

 of their length (Fig. 29, G). At first they are bent inwards 

 or almost rolled up, ultimately spread out, scarcely rolled 

 backwards. The flower varies greatly in size and length 

 relatively to the calyx (Fig. С and for instance E); this is 

 also still more noticeable when compared with flowers from 

 other countries, for instance Fig. A from Finmark. 



? appears to be as common as ç^. Its size relatively to 

 ^ is seen by comparing Fig. 29, H (?) with С and E. The 

 petals in ? are 3^2 — ^^/g, rarely ö^/g — 6 mm ; in ^ 5 — 7. $ 

 is about 5 — 6 mm in diameter, while ^ is 9—13 mm, but 

 near Copenhagen ^ are found which measure 3^2 — 4 mm in 

 diameter, and have petals 2^/2 mm in length, i. e. smaller 

 than the calyx. It should be borne in mind that the petals 

 grow in size during the flowering period. In some of the 

 flowers the anthers (Fig. J) are quite transparent with crys- 

 tals of calcium oxalate, in others the anthers are of a yel- 

 lowish colour, or only their one-half is so coloured, and 



