8 Nr. 2 C. H. OsTENFELD and C. SYRACH LARSEN: 
are of an open, characteristically light 
construction. The cone-scales open widely 
when::ripe Vise et 7. L. Gmelini. 
var. olgensis. The cone longer and more 
cylindrical. The free edges of the cone- 
scales are rounded or truncate. The 
usually straight cone-scales may also 
be slightly  concave or slightly 
recurved. The first year’s shoots are 
more frequently pilose, very often 
extremely so. 
var. Principis Rupprechtii. The cone is 
still longer and more cylindrical than 
in the case of the former variety; length 
up to about 4 cms. 
The areas of distribution for the various species differ 
very considerably in extent; the species with restricted 
areas of occurrence being indigenous towards the south, 
particularly in Asia, and appear at the same time to be the 
oldest forms. Some of the other species have very large 
areas of occurrence. 
III. The Species of Larix. 
1. L. Griffithiana (Lindl. & Gordon, 1850), CARRIERE: 
Trait. Conif. 1855, p. 278. — 
Gorpon: Pin. 1858, p. 126. — WILLKOMM: Forstl. Fl. 1887, p. 
157. — REHDER: Man. Trees and Shrubs, 1927, p. 51. — 
Syn: 
Abies Griffithiana, LiNDLEY & Gorpon, in Journ. Hort. Soc. 
V. 1850, p. 214. — 
L. Griffithii, I. D. Hooker & THOMSON in Cathcart, Ill.. Himal. 
Pl. 1855, t. 21. — HENKEL & HocHSTETTER: Syn. Nadelh. 1865, 
