198 



also the case Avith the Danish specimens (Fig. 19 in which the 

 antisepalous stamens are bent inwards, and have some of their 

 anthers open; one stamen (marked x) has already bent back- 

 wards; the antipetalous stamens and the pistil are still unripe). 

 All the antipetalous stamens may be bent forwards with their 

 anthers open, before the pistil is ripe. 



Pistillate flowers with small anthers devoid of pollen, 

 and forms showing all the transitional stages between these 

 and the usual flowers, occur in Spitzbergen (Andersson and 

 Hesselman). 



В, 



В с. 



Fig. 19. Saxi fragå Hirculus L. 



Spirit-material from Spitzbergen (Recherche-Bay; July 7, 1882; A. G. Nathorst). 

 A, A distinctly protandrous flower; one of the stamens is bending over the middle of the 

 flower; the one marked x has already bent backwards. B, Sepal, C, Petal. D, Anther. 



(Drawn by E. VV.) 



Ripe fruit is said to be developed in Spitzbergen, but 

 probably not every year (Andersson and Hesselman). Almost ripe 

 fruit was found in Nova Zembla (Ekstam). 



Insects-visitors. In Nova Zembla and in Siberia Ekstam 

 and Kjellman saw different kinds of small, large, and medium sized 

 flies and other Diptera visit the flowers. 



Saxifraga Bivalis L. 



Lange, Conspectus, p. 59. Rosenvinge, 1892, p. 177. Тн. Holm, 

 1885, p. 52. Warming, 1886 b, p. 14, fig. 24. Lindman, p. 58, 

 tab. II; fig. 24. N. Hartz, 1894, p. 4; 1905, p. 288. Rosenvinge, 



