62 Nr. 2. C. H. OSTENFELD and C. SYRACH LARSEN: 
terminating in the west quite near to Lake Onega (CAJANDER). 
Its most northerly point reaches Jenisej, where, according 
to SCHEUTZ (1888, p. 41), it is to be found right up to the 
Arctic Sea (see under L. Gmelini in this paper, p. 40). 
From this point, lat. 69°—70° N., it may be found growing 
everywhere southwards to the Altai Mountains, and the 
area reaches its southern extremity in two isolated localities 
a little more to the south on the southern slopes of the 
Sair Mountains at lat. 46°—461/2° N. and near lat. 45° N. 
(Price & Simpson in Journ. Linn. Soc. Bot. XLI, 1913, p. 
444). On the south-east point of the Kola peninsula there is 
an isolated, presumably wild, specimen. It is about 31/2 m. 
in height, and is supposed to be more than 150 years 
old. It is situated 3 km. from the sea, and 2 km. from 
Ssosnowka (TOLMATCHEW in Sy. Bot. Tidskrift, 1925, p. 523)! 
(See Map V). 
The border-line of its occurrence has been drawn on 
the map according to several different sources. In European 
Russia, KouznETsov’s revision of KÔPPEN’s map has been 
adhered to in the main (Körren; Geogr. Verb. Holz. 1889, 
Map IV, and KouzneETtsov in “vol. jubil. a I. P. Boropin” 
1927) (see our Map VI), and also Bromovıst (Finsk 
Forstf. Medd. 1887, pp. 152 and 153). Towards the east, 
more particularly north of the Urals, the line has been 
extended farther out towards the Arctic Sea in agreement 
with MinDENDORFF (Midd. Reise, IV, Part I, p. 531), who 
gives the most northerly point of occurrence in Europe as 
being about the source of the Kara in the extreme north 
of the Urals at lat. 68° N. Further eastwards, the boundary 
is likewise MIDDENDORFF’S (l. c. pp. 531—532), and has 
only been moved close to lat. 70° N. near Jenisej, as already 
stated, in conformity with SCHEUTZ, MIDDENDORFF having 
placed it a little more to the south, attributing the occur- 
