ALPINE FLORA AND FERNS OF NORWAY. 301 
Kenieia IsLanpica, L.; Fl. D. tab. 418.—Occasional on boggy 
places over the whole Fjeld, e. g., near the old high-road over 
Harbakken, by the road between Volas6 and Jerkin; by Jerkin, 
Kongsvold, and in Drivdal. First appears a little above the fir- 
limit, and mounts up beyond the limit of birch. 
THYMELE. 
DaPune MeEzereuy, L.; Fl. D. tab. 268.—On Harbakken, 
above Rustgaard, at about the birch-limit. 
EUPHORBIACEA. 
KupHorsia Henioscopia, L.; Fl. D. tab. 725.—Up to the 
corn-limit, by Tofte. 
URTICEA. 
Urtica ureEns, L.; Fl. D. tab. 739.—By mountain cabins, 
U. piocta, L.; Fl. D. tab. 746.—As the last, but more com- 
mon. 
AMENTACE. 
BETULA GLUTINOSA, or B. verrucosa, Ehrh., Wallorth; Fl. D. 
tab. 1,467.—Professor Blytt places its limit at 3,241 feet on the 
Rondfjeld, adjoining the Dovre, and on Vaarstien at 3,193, feet.— 
N.B. The limit of birch is reckoned by this species. 
B. ALPEsTRIS, Fries.—Occasional on the Dovre; grows on 
Knudshoé. Rare. 
B. Humivis, Hartmann.—Occasional on the Fjeld. First appears 
a little below the birch-limit, and mounts up to 100 feet above 
it. 
B. wana, L.; Fl. D. tab. 91.—Grows highest up of all the birch 
tribe, to the limit of lasting snow; has a very stunted and creep- 
ing form. 
ALNUs Incana, L.; Fl. D. tab. 2,301.—Mounts 200 to 300 feet 
above the fir-limit in Drivdal. 
A. Pusescens, Tausch.—Found in moist places in Drivdal and 
Nystudal. 
PoPULUS TREMULA, L.—Grows as a bush, 2 to 3 feet high on 
the Fjeld side a little above Kongsvold. Near Drivstuen it 
attains a tolerable height, some 100 feet above the fir-limit. 
SALIX PENTANDRA, L.; Fl. D. tab. 948.—Between Tofte and 
Dombaas, and by Drivstuen. 
