PINACEAE. — PINUS 17 



persistent, but occasionally on the exposed upper parts of the tree the bark is red 

 and peels off in thin sheets as in P. Massoniana Lambert. The wood is close- 

 grained and resinous, very durable and is esteemed for general building purposes. 

 Pictures of this tree will be found under Nos. 81 (type tree of P. Wihonii Shaw), 

 114, 117, 168, 058, 059, 0123, 0141, 0330 of the collection of my photographs and 

 also in my Vegetation of Western China, Nos. 352-356. E. H. W. 



Pinus sinensis, var. yunnanensis Shaw, n. var. 



Pinus yunnanensis Franchet in Jour, de Bot. XIII. 253 (1899). — Masters 

 in Jour. Linn. Soc. XXVI. 553 (1902); XXXVII. 415 (1906). — Shaw in 

 Sargent, PI. Wilson. I. 2 (1911). — Patschke in Bot. Jahrb. XLVIII. 657 

 (1912). 



This variety has the longest leaves and largest cones of the species. 



Western Szech'uan: Mupin, alt. 1300-2000 m., November 

 1908 (Nos. 1395, i399, 1464; tree 6-20 m. tall, girth 1-2 m.); Ching- 

 chi Hsien, Nitou, alt. 1500-1600 m., November 1908 (No. 1393; tree 

 3-20 m. tall, girth 0.6-3 m.); valley of Tung River, alt. 1300-1600 m., 

 November 1908 (No. 1396; tree 6-15 m. tall, girth 1-2.5 m.); west of 

 Wa-shan, Malie, alt. 1600 m., November 1908 (No. 1394; tree 16 m. 

 tall, girth 3 m.); same locality, July 1903 (Veitch Exped. No. 3000). 



This is the low-level Pine in the river- valleys of south-west Szech'uan and west 

 of the limits of the Red Basin. It extends southward into western Yunnan. It 

 is a tree of medium size usually with long, drooping, slender leaves in fascicles of 

 three on all the main shoots and relatively large, long persistent cones. On the 

 upper part of the trunk and main branches the bark is usually red and exfoHates 

 in thin sheets. On the lower part of the trunk the bark is persistent and deeply 

 fissured into irregular, oblong masses. The branches are rather short and the 

 habit usually pyramidal, though old trees are frequently flat-headed. The wood 

 is moderately close-grained and is used for fuel and also for general construction 

 purposes. 



Pictures of this tree will be found under Nos. 273, 274, 275, 276 of the collec- 

 tion of my photographs and also in my Vegetation of Western China, Nos. 381, 382, 

 383. E H. W. 



Pinus sinensis, var. densata Shaw, n. var. 



Pinus densata Masters in Jour. Linn. Soc. XXXVII. 416 (1906). — Shaw in 

 Sargent, PI. Wilson. I. 2 (1911). — Patschke in Bot. Jahrb. XLVIII. 658 

 (1912). 



Pinus prominews Masters in /our. Linn. <Soc. XXXVII. 417 (1906). — Patschke 

 in Bot. Jahrb. XLVIII. 658 (1912). 



This variety differs chiefly in its obUque cones with their posterior apophyses 

 tumid and prominent. 



Western Szech'uan: west of Tachien-lu, descent to valley of 

 Yalung River, around hamlet of Orang-che, alt. 3000-4000 m., October 

 1908 (Nos. 1465, 1466, 1467, 1478, 1479; tree 20-30 m. tall, girth 

 1-4 m.); same locality, June 1904 (Veitch Exped. No. 3015, type of 



