226 



an ordinary lierinaplirodile llower lias hccii li^Mired {V\'fi. 3() K, L), 

 with tlie same magnification. Also (jCntiiaiit fonnd specimens 

 "with extremely small stamens." 



I found trimerons |) i s ti Is in some terminal flowers. 



Chrysospleiiiiim alteniifoliiiiu L. el var. tetraiidriiiii Lund. 



Warming, 1886 b, 3. Linuman, p. 50. Ekstam, 1897 a, p. 135. 

 Andersson and Hksselman, p. 31, Simmons, p. 59. Silkn, p. 125. 

 Sylvén, p. 233, pi. II. 



Kncth, 1898; pp.453, 455. 



Chrysospleniiim alternifolium L. var. tetrandrwn Lund was 

 established in 1846 by N. Ldnd in Norway. Th, Fries (1858) 



Fig. 37. Chrysosplenium alternifolium var. tetrandrum. 



A, A runner terminating in a flowering shoot; about nat. size (Spitzbergen; June 25, 1882; 

 Nathorst). B, A leaf from the same plant (mag.). C, Basal leaf from a cultivated specimen 

 mag.). D, Leaf from one of the lower branches of an inflorescence; the venation, on the 

 whole, resembles that of several of the Saxifragoe (see Fig. 29). (Drawn by E. W. ; 1908.) 



regards it as a distinct species, Ch. tetrandrum. According to 

 Simmons it is connected with the principal form by intermediate 

 forms, and he agrees with Franchet in considering it a variety 

 (Monographie du genre Chrysoplenium, Nouv. Archives du Mu- 

 seum, Ser. 3, X, 1890, p. 107). It should be regarded as a 

 smaller and self-pollinating form of C. alternifolium^ adapted 

 to Arctic conditions of life. 



The material I bave had for examination was partly spirit- 

 material from Spitzbergen, gathered by Nathorst, and partly 

 living specimens, which I observed in the HortusBergianus (Stock- 

 holm). 



