Castanopsis motleyana
Content
Description
Tree, 10-40 m by 20-70 cm ø;
Branchlets when young with dense fulvous indumentum of longer and mostly also shorter bundle-hairs, glabrescent, slender to sturdy;
Leaves thick-coriaceous, (7-) 15-23(-32) by (2½-)7-10(-16) cm (index 2-2.8(-3.5)), widest at the middle to sometimes above;
Stipules ovate-acute, 7-10 by 3 mm.
Fruit ovoid-conical, 2-2½ by 1½-2 cm, the scar covering ¼ part, flat or convex, the free part densely yellowish brown tomentose, top acute;
Distribution
Asia-Tropical: Borneo present; Philippines (Philippines present), Mindanao present, Nunukan I present
Malesia: Borneo (throughout), also Nunukan I., Philippines (Mindanao).
Notes
In D. D. WOOD (coll. EVANGELISTA) 1151 from North Borneo, the type of C. pearsonii, the cupule (detached from the leaves) is 5 by 6½ cm, the sutures being free of spines.
In the few Philippine specimens partly the leaves resemble those of the type of C. pearsonii, i.e. lanceolate with comparatively few arcuating veins under a sharp angle, and scaly beneath, partly they resemble other materials from Borneo, with wider leaves, more and parallel veins under a wider angle, and glabrous beneath.
Leaves longer than 20 cm were never found to be scaly beneath, but no further correlations could be detected in the considerable diversity as contained in the above description, neither in structure nor in geographical or ecological distribution, and the extremes are all connected by intergrades.
In the few Philippine specimens partly the leaves resemble those of the type of C. pearsonii, i.e. lanceolate with comparatively few arcuating veins under a sharp angle, and scaly beneath, partly they resemble other materials from Borneo, with wider leaves, more and parallel veins under a wider angle, and glabrous beneath.
Leaves longer than 20 cm were never found to be scaly beneath, but no further correlations could be detected in the considerable diversity as contained in the above description, neither in structure nor in geographical or ecological distribution, and the extremes are all connected by intergrades.