1. Agathis dammara (Lambert) Richard & A. Richard in A. Richard, Comm. Bot. Conif. Cycad. 83. 1826.
贝壳杉 bei qiao shan
Pinus dammara Lambert, Descr. Pinus 1: 61. 1803; Agathis alba Jeffrey; A. loranthifolia Salisbury; Dammara alba Rumphius ex Blume.
Trees to 40 m tall; trunk to 45 cm d.b.h.; bark reddish gray, thick; crown conical; branches slightly drooping; winter buds terminal on branchlets, with a few densely arranged scales.
Leaves with petiole 3-8 mm; blade dark green, oblong-la-
ceolate or elliptic, ± recurved, 5-12 × 1.2-5 cm, usually smaller on cone-bearing branchlets, leathery, margin thickened, apex usually obtuse, occasionally mucronate. Pollen cones 5-7.5 ×
1.8-2.5 cm. Seed cones subglobose or broadly ovoid, to 10 cm; bracts 2.5-3 cm, apex reflexed. Seeds obovoid, ca. 1.2 cm × 7 mm; wing developed on 1 side, membranous, almost
Cultivated. Fujian, Guangdong [native to Indonesia, Malaysia].
The trunk richly contains the famous "dammar" resin, which is widely used in industry and medicine. The tree is commonly grown as an ornamental, and also yields timber used for