203 



Dr. S. Bansen in West Greenland, tlie styles were considerably 

 longer than the stamens, and as the anthers were also smaller 

 than usual, hut yet were open, and as the pollen-grains appeared 

 to be abnormal and imperfect these should probably be 

 regarded as pistillate flowers or as transitional in that direction 

 (Fig. 22, E-J). 



Saxifraga oppositifolia L. 



Lange, Conspectus, pp. 66, 257. Rosenvinge, 1892, p. 680. 

 Th. Holm, p. 40. Warming, 1886 a, p. 29, fig. 28; 1886 b, pp. 113, 

 118. Lindman, p. 56, pi. II, fig. 21. Bonnier, p. 513. N. Hartz, 

 1894, p. 4; 1895, pp.242, 287. H. Jonsson, p. 283, fig. 1. Rosen- 

 viNGE, 1896, p. 107. Ekstam, 1897 a, p. 127 (Nova Zembla) ; 

 1897 b, p. 12 (Spitzbergen). Vanhôffen, p. 38. Abromeit, p. 38. 

 G.Andersson och Hesselman, p. 23, figs. 8 — 12. Ddsén, p. 35. A. 

 Gleve, p. 48. Lindmark, p. 19, pi. I, figs. 8 — 15, Sylvén, p. 229. 

 Simmons, p. 60. 



H.Müller, p. 98, fig. 31. Knuth, p. 444. G.Schröter, p. 540. 



Material from West Greenland (Kornerup, Holm, Warming, 

 Ryder, Hartz) , East Greenland (Hartz, V. Eberlin, Deichmann, 

 Knutzon), Iceland (Hj. Jensen, Helgi Jonsson, Stefansson), the 

 Færoes (Warming, Borgesen, Helgi Jonsson), Nova Zembla (Th. 

 Holm), Norway (Warming). 



This Saxifraga is the one with the most extreme Arctic 

 distribution, and it flowers earliest in spring; scarcely has the 

 snow' melted — indeed, it may not yet have done so — when 

 the flowers, which have passed the winter in a well-developed 

 condition (Fig. 26 D), expand. Even in March, open flowers may 

 be found in West Greenland (March 26 ; J. Vahl). 



This species is a perennial herb, which has a tendency to 

 become a sub-shrub as the branches become woody; it varies 

 somewhat in form, hence Andersson and Hesselman even established 

 a forma reptans and a forma pulvinata. These are probably 

 only modifications occasioned by circumstances pertaining to 

 locality (cf. also Simmons), 



