382 



and the dense growth of the plant may also be useful in this 



respect. 



It is not uncommon to find plants 



with dead stems from the preceding 



year upon them (Fig. 28, A), which 



proves that at least these specimens 



live longer than one year (compare 



the statement if (O ?) in Neuman, 



"Sverriges flora," Lund, 1901). 



The rosette-leaves, and also 

 the lowermost stem-leaf, are stalked, 

 somewhat reniform in shape, and 

 deeply tripartite with either entire 

 or shallowly 2—3 lobed elliptical 

 segments. The 1 — 2 upper leaves 

 are sessile and tripartite with oblong 

 lobes. The leaves are glabrous or 

 also slightly hairy at the margin. 



The stem is ascending: before 



Fig. 29. R. pygmœus. 



A, Longitudinal section through a 

 principal bud (Danmarks ; Aug. 1891 ; 

 -"11), с, Carpel; st, stamen; p, nec- 

 tary-leaf ; sp, perigone leaf ; го, scale- and just after flowering it is short, 

 leaf; sb. stem-leaf. B, Stamen (-^h) • j p • г i j i 



,',,-,,,. ,v ^^Ia in dwarf specimens from Advent 



and carpel ('^/i) irom the same bud. r 



Bay in Spitzbergen about 0'5cm.; 

 afterwards it elongates greatly and becomes as much as 16 cm. 



Fig. 30. R. pygmœus. 



A, Nectary-leaf РД). В, Nectary (I'/i)- C, Fruit (Danmarks 0; Aug. 1891; Щ). D, Flower 

 of R. pygmæus (Holstensborg in Greenland; D, drawn by E. W. ; "/s). 



high. The peduncle differs from the stem in being more 

 densely hairy and more deeply furrowed. 



