ALPINE FLORA AND FERNS OF NORWAY. 277 
the whole Fjeld in Alpine Flora; nearly all the Alpine Flora of 
the north seems to have concentrated itself in this valley.” There 
is good fishing in the Driv. Good quarters. 
The “ birch-limit,”’ under lat. 61°, is 8,750 feet above the sea; 
under 62° it is 3,700 feet above the sea. “The dwarf birch 
(Betula nana) grows everywhere in the Alpine regions, and at 
higher altitudes than any other of the tribe.”"—Dr ScHuBELER. 
The limit of eternal snow under lat. 62° is about 5,500 feet 
above the sea. That of the larger willows, e.g., Salix lanata, 
limosa, glauca, &c., under the same latitude, is about 5,000 feet. 
Whenever ‘“corn-limit” is used the limit of barley is to be 
understood. 
ANEMONE VERNALIS, L.; Fl. D. tab. 29.—Common over the 
whole Fjeld. At Storhoé above Tofte, and near Drivstuen, it 
reaches the limit of eternal snow. 
RANUNCULUS REPTANS, L.; Fl. D. tab. 108.—Common up to 
and a little beyond the birch-limit, by Fogstuen; near Kongsvold, 
it apparently vanishes at the above limit. 
Kongsvold is an excellent station for the botanist—good 
quarters. The station is over 3,000 feet above the sea. Good 
shooting and fishing here. 
R. PLATANIFOLIUS, Fl. D. tab. 3—Rather common in Driv- 
dalen. On the heights by Drivstuen it is found up to the birch- 
limit. 
R. evactauis, Fl. D. tab. 19.—Varieties of this plant, with 
snow-white, light or dark rose-coloured flowers, are abundant on 
the edges of melting glaciers. It appears to be the advanced 
guard of the flower world towards the regions of eternal snow. 
Reindeer are extremely partial to it. The peasants call it the 
rein-flower ; and wherever the sportsman finds this plant in great 
quantities untouched, he may feel sure of not finding deer. In 
places—e.g., near Kongsvold—it is found below the birch-limit. 
R. nivauis, Fl. D. tab. 1,699.—Is found scattered about near 
the highest parts of Vaarstien, on ascending the Fjeld from the 
right. On the road from Vaarstien to Knudshoé, and on this 
Fjeld, it is general. It is found in large quantities on the heights 
near to where the snow never melts, usually in company with 
the Phippsia algida, Saxifraya oppositifolia, Draba alpina, &c., 
and reaches even higher than £&. glacialis. Its flowers are bright 
yellow ; and, where they are found in large quantities, as above 
