338 



Ranunculus glacialis L. 



Wtdler, 1859, p. 263. Lindman, 1887, pp. 19, 25, 39, 99, 

 tab. I, fig. 6. Wagner, 1892, p. 55. Norman, 1895, pp. 1—4. 

 Kerner, II, 1898, pp. 162, 272, 276. Andersson & Hesselman, 



1900, p, 42. Resvoll, 1900, figs. 1, 6, 10, 16, 17. Gleve, Astrid, 



1901, p. 50. Ddsén, 1901, p. 29. Freidenfelt, 1904, p. 54. 

 Sylvén, N., 1905, pp. 134—40, fig. Hollstein, 1907, pp. 84— 

 85, 88. 



Alcohol material from Fløjfjæld (Tromsø), 23.7.1885; 

 Knudshø (Dovre), 7. 1891; Jan Mayen, 22.7. 1896. 



The rhizome is vertical or oblique and remains alive for 

 several years ; the length of the longest I measured was about 

 5 cm. The primary root dies early, and afterwards only 

 adventitious roots occur. The latter arise without apparent 

 order from the entire surface of the rhizome; withered leaf- 

 fragments and a few short hairs occur between the roots. 



HoLLSTEiN records that the rhizome is exceedingly short 

 and that it dies at the same time as the floral-axis produced 

 by it ; consequently upon this point there appears to be a 

 difference between the Arctic individuals of the species examined 

 by me and those from Central Europe. 



When flowering begins, the rhizome becomes sympodial 

 with, usually, only one branch from the uppermost of the 

 leaf-axils at the base of the stem; but specimens often occur 

 with 2-several growing-points on the rhizomes, consequent 

 upon the fact that other leaves of the rosette, besides the 

 uppermost, may subtend buds. The flowering-axis usually bears 

 only a few leaves at the base, viz. on the outside 1 — 3 scale- 

 leaves with large sheaths and rudimentary laminae, and then, 

 1—2 (according to Wtdler as many as 4) long-stalked foliage- 

 leaves; the leaf-spiral is ^/5. In the majority of the specimens 

 examined by me these foliage-leaves were wanting and the 

 principal bud was therefore situated in the axil of the upper- 



