28 Nr. 2. C. H. OsTENFELD and C. SYRACH LARSEN: 
mental Forestry Service at Egelund; vide A. OPPERMANN: 
Cultivation of the Larch in Denmark in Det forstlige For- 
sogsvesen i Danmark, VII, p. 276). In forests and gardens 
its occurrence is as yet rare. 
Herb. Mat. examined: 
Brit. Columbia.: Deer Park, Lower Arrow Lake, 1890, Macoun 
(Gray Herb.). — Upper Arrow Lakes, 1889, Dawson (Ottawa Herb.). — 
Between Lower and Upper Arrow Lakes, 1890, Macoun (Ottawa Herb.) 
— Sicamous, 1889, Macoun (Ottawa Herb.). — Colombia Slope, 1834, 
Herb. Nuttall, Type collection (Brit. Mus.). — Columbia River from lat. 
48°—49° N., several specimens, Dr. LyaLt, 1860 (Kew; Gray Herb.), — 
Columbia River 1890, JoHN Macoun, (Brit. Mus.). — Selkirk Flora, 1905. 
Cuas H. SHaw, a) Wood W. of Nelson, b) Hills near Howser Lake (Brit. 
Mus.; U. S. Nat. Herb.; Gray Herb.). — Washington: Blue Mts. Colum- 
bia Co. 1897 (Gray Herb.). — Swank River, 750—1800 m., SHARPLES, 1913, 
(Gray Herb.). — Near Kettle Falls and in the Rocky Mountains, 1826, 
Davip DoucLas (Kew). — Cascade Mts., T. S. BRANDEGEE, 1882, Ex Herb. 
Univ. Calif. (Hort. Bot. Haun.). — Suksdorf, Fl. of Washington, Mt. Paddo, 
ADAMS 1883 (Brit. Mus.; Gray Herb.).— Oregon: Union, Col. Casıck 1882 
(Kew). — Petty’s Canon, 1880, S. Warson (Gray Herb.). — Big Fork, 
1908, J. CLEMENTS (Gray Herb.). — Clear water (Gray Herb.). — Near 
Mt. Hood, WALPOLE, 1898 (U. S. Nat. Herb.). — Montana: Columbia Falls, 
1893, WırLıams (U. S. Nat. Herb.). — Lower valley of Clarks Fork, 650 m. 
J. B. LEIBERG, 1895 (Gray Herb.; U. S. Nat. Herb.). — Fl. of Idaho, 
Craig Mts. near Lake Waka, 1892 (Brit. Mus.; Gray Herb.). — Fl. of Idaho, 
Payette Lake, 1899. Marcus Gray Jones (Brit. Mus.). — 
5. L. Lyallii, Parlatore, in Enum. Sem. Hort. Reg. Mus. 
Flor. 1863. 
Journ. Bot. I, 1863, B. 35, and, in Gard. Chron. 1863, p. 916. — 
SARGENT: Silv. N. Am. XII, p. 15, t. DXCV. — REHDER: Man. Trees 
and Shrubs, 1927, p. 51. 
Syn: 
Pinus Lyallii, PARLATORE in De Candolle Prodr. XVI. 2. 1868, 
p. 412. | 
L. Lyalli, has for its area of distribution two regions 
divided from one another, one towards the east in the 
Rockies, and one to the west in the Cascade Mountains. 
