Knema korthalsii subsp. korthalsii
Content
Description
Tree 7-30 m.
Leaves chartaceous or coriaceous, oblong to oblanceolate, 12-35 by 2.5-9(-12) cm, base (sub)attenuate;
Flowers with hairs 0.3-0.7 mm.
Fruits 1.5-4 cm long, with hairs 0.5-1 mm, stigma more or less withering, fruiting pedicel 2-6 mm long.
Taxonomy
2 BS 44288 (Ramos & Edano), the type of the synonym K. insularis, is intermediate with K. glomerata, and might belong to this latter species.
1 Knema korthalsii belongs to the group of species with the staminal disc distinctly convex or with a mammilla; it is also related to a group of species to which K. glomerata, K. pectinata, and K. woodii belong. Subsp. korthalsii seems most closely related to K. glomerata, which differs in a ± flat staminal disc, more slender twigs, leaves with fewer lateral nerves, 12-20 pairs, and fewer anthers, 9-13, as against 10-20, for K. korthalsii. Knema glomerata and K. korthalsii overlap in area in Mindanao, Sa-mar, and the Sulu Islands. Knema pectinata has much more lateral nerves, and K. woodii can be distinguished by the more numerous sessile anthers, and shorter indumentum on the twig apices and flowers. Subsp. korthalsii can be confused easily with K. membrani-folia.