Caryophyllaceæ. 301 



Norway. Protandry with ensuing homogamy; the styles 

 become functional almost simultaneously with or a little 

 after the cor.-st. (Altenfjord, 10. 7. 1885). 



Russia (Kola), g: petals 4 x / 2 mm, slightly longer than 

 the sepals. Diameter about 7 mm. Slight protandry with 

 ensuing homogamy. 



Spitzbergen. Gynodioecism. The very small flowers 

 which occur here are remarkable. In Fig. 30, L are shown 

 parts of a v with the same magnification as A and C. Sepals 

 and petals are here somewhat more than 3 mm. Pistil small 

 with rather erect styles, which have papillæ only at their 

 apex. The anthers are normal, open. Can this be a form 

 transitional to cJ? An equally small g has been found in 

 Greenland. The ? flowers are even somewhat smaller; the 

 sepals and petals 2 1 / 2 mm, but the stigmatic papillæ upon 

 the slender styles are almost of the usual length. Th. Fries 

 states also that the flowers are smaller and the petals narrower 

 in specimens from Spitzbergen than in those found on the 

 coasts of Finmark. 



10. Stellaria borealis Bigel. (Fig. 31). 



Gynodioecism. Homogamy, self-pollination. 3, 4, 5 

 styles (Fig. 31, C, E). Perigynous (Fig. A, G). 



Greenland (about 65° N. lat.). $: Corolla absent. The 

 whole flower 3 — 4 mm in diameter. Homogamy. Peculiar to 

 this species are the long styles which curve backwards and 

 are thrust among the stamens, so that they touch the anthers 

 (Fig. A, C, E); the styles have stigmatic papillæ down 

 to their base (Fig. D). Sometimes 1 — 3 stamens are abortive. 

 In specimens from Greenland, collected by Rosenvinge the 

 anthers were attacked by Ustilago antherarum and the pistil 

 was checked in its development. 



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