184 



Spitzbergen; they were small (diam. 5 — 8'6 mm.), had pure-white 

 petals, and their stamens were reduced to gland-like bodies 

 (1. c. Fig. 13). They also found flowers, the anthers of which 

 contained only 56 °/o of functional pollen. Lindmark, also, found 

 pistillate flowers with pistils and anthers of almost equal length 

 (I.e. p. 79). 



F.cryptopetala Rosenvinge, 1892, Conspectus floræ Grönl.; 

 Supplement II, p. 678. This form has been described as having 

 petals half as long as the sepals, and "organa fructificationis 

 abortiva;" it is founded upon material from Egedesminde, gathered 

 by N. Hartz. Abromeit found, in West Greenland, forms transi- 

 tional between this and the principal form. At Holstensborg 

 I found specimens which also had very short petals, and the 

 sepals of which were more foliaceous. 



Insects visit the flowers. In Nova Zembla Ekstam saw a 

 medium-sized fly in them. 



Ripe fruit is set scarcely anywhere. Simmons writes: 

 "the bulbillse are probably its only organs of propagation, as 

 the fruit was never developed so far as I have seen." 



Saxifraga flagellaris Wil Id. 



BüCHENAU et FocKE, p. 382. Warming, 1884, p. 52; 1886, p. 25, 

 fig. 27. Th. Holm, p. 50, pi. IX, figs. 1—7. Ekstam, 1897, p. 128; 

 1898, p. 13. G. Andersson och Hesselman, p. 26. Dosen, p. 34. 

 Simmons, p. 62. Hooker, Flora Boreali-Americana, I, tab. 87. Flora 

 Danica, tab. 2353. 



Material from East Greenland (N. Hartz), Spitzbergen (A. G. 

 Nathorst) and Siberia (Kjellman). 



Rosette-plant; usually the difference between the basal part 

 of the rosette and the rest of the shoot which terminates in 

 the flower is greater than is shown in my Fig. 10, as the leaves 

 in the upper part are much smaller than the rosette-leaves, 

 much more bract-like, and occur more widely separated from 

 each other (cf. Holm's figures). 



