1. Pseudotsuga forrestii Craib, Notes Roy. Bot. Gard. Edinburgh. 11: 189. 1919.
澜沧黄杉 lan cang huang shan
Pseudotsuga sinensis Dode var. forrestii (Craib) Silba.
Trees to 40 m tall; trunk to 80 cm d.b.h.; bark dark brown-gray, rough, deeply fissured longitudinally; branchlets initially pale yellow or greenish yellow, becoming reddish brown when dry, light brown or brownish gray in 2nd or 3rd year, glabrous or pubescent. Leaves pectinately arranged, subsessile, linear, 2.8-5.5 cm × 1.3-1.8(-2) mm, base cuneate, apex emarginate. Seed cones ovoid, 5-8 × 4-5.5 cm. Seed scales at middle of cones suborbicular or rhombic-orbicular, (2.5-)2.7-3.5 × 3-3.6 (-4) cm, glabrous abaxially, base cuneate-orbicular. Bracts obviously longer than seed scales, reflexed, cusp lanceolate, 6-12 mm, lateral lobes narrowly triangular, ca. 3 mm. Seeds light brown, irregularly dark spotted, triangular-ovoid, slightly depressed, glabrous adaxially; wing obliquely ovate. Seed maturity Oct.
* Mountains; 2400-3300 m. Yunnan
A vulnerable species. The timber is used for construction, bridge building, vehicles, and furniture. The species is also grown for afforestation.