The Species of the Genus Larix. 17 
3. Larix Potanini, A. BATALIN, in Act. hort. Petrop. XIII, 
1894, p. 385. — 
MASTERS, in Journ. Linn. Soc. Bot. XXVI, 1902, p. 558. — Gard. 
Chron. 3. Ser. XXXIX, 1906, p. 178 (cum icon.). — ELwes & HENRY: 
Trees. Gr. Brit. and Irel. IJ, 1907, p. 391. — Beıssner: Nadelholzk. 
1909, p. 307, (cum icon.). — PATSCHKE, in Engl. Bot. Jahrb. XLVIII, 
1913, p. 651. — REHDER & WILSON, 1914, in Sargent: Pl. Wilson, II, 
p. 18. — REHDER, in Journ. Arnold Arb. IV, 1923, p. 121. — DALL1- 
MORE & JACKSON: Handb. Conif. 1923, p. 297. — Wırson in Journ. Arn. 
Arb. VII, 1926, p. 46, — Hsen-Hsu-Hu & Woon-Younc-Cuwn: Icon. 
Plant. Sinicarum, 1927, Pl. 2 — REHDER: Man. Trees and Shrubs, 
1927, p. 50. —. 
Syn 
L. chinensis BEISSNER in Mittl. d. dendr. Gesellsch. 1896, p. 
68. — DIELS, in Engl. Botan. Jahrb. XXIX, 1901, p. 216. — MASTERS, 
in Journ. Linn. Soc. Bot. XXVI, 1902, p. 558. — ELwEs & HENRY: 
Trees. Gr. Brit. and Irel. II, 1907, p. 346. — BEISSNER: Nadelholzk. 
1909, p. 303, (cum icon.). — PATSCHKE, in Engl. Bot. Jahrb. XLVIII, 
1913, p. 651. — 
L. tibetica, FRANCHET, in Journ. de Bot. XIII, 1899, p. 262. — 
Dies, in Engl. Bot. Jahrb. XXIX, 1901, p. 216. — MASTERS, in Journ. 
Linn. Soc. Bot. XXVI, 1902, p. 559. — 
L. Griffithii, Masters, in Journ. Linn. Soc. Bot. XXVI, 1902, p. 
558. — PATSCHKE, in Engl. Bot. Jahrb. N 1913, p. 746. — Non: 
Hook. f. & THOMSON. — 
L. Potanini occurs in a belt extending from the north- 
west of Yunnan, where it is broadest, northwards through 
Szechuan to a short distance into the interior of Kansu. 
Thence it follows the great mountain chain of Tsinling- 
shan eastwards to the extreme south-west corner of Shensi. 
The majority of finds has been made in Szechuan and in 
the north-west of Yunnan, where, generally speaking, it is 
common, and is a valuable forest tree. It is to be found 
there from an altitude of 2500 m. above sea-level and 
higher, until it finally disappears at the forest-line. Wırson 
Vidensk. Selsk. Biol. Medd. IX, 2. 2 
