Cinnamomum kinabaluense Heine

11. Cinnamomum kinabaluense Heine View in CoL — Map 4 View Map 4

Cinnamomum kinabaluense Heine (1953) View in CoL 213;Kosterm.(1964) 310; Beaman et al. (2001) 399. — Type: Clemens 32690 (holo M n.v.; iso BM, BO, K, L, NY), Sabah, Ranau District, Gunung Kinabalu, Gunung Nunkok.

Small tree or shrub 2 – 3 m tall. Twigs terete, 2 – 4 mm diam, apically angular, densely hairy or glabrescent, brown. Terminal buds not perulate, conical, c. 5 mm long, densely covered with curly hairs. Leaves opposite or subopposite, triplinerved, coriaceous, densely covered with curly hairs or if becoming glabrescent, the remnant of indumentums always present near the midrib, indumentum drying yellowish; blade bullate in between midrib and lateral veins, without domatia, ovate elliptic to orbicular, (3–)5–7.5(–9) by (2–)3 –5(–6) cm, base usually rounded, rarely cuneate, apex acute to acuminate or obtuse, acumen 0.2– 0.5 mm long; midrib prominent and raised on both sides; lateral veins prominent and raised on both sides, extending to c. 3/4 the length of the blade; major intercostal veins faint, subscalariform, 3– 8 mm apart; minor intercostal veins faint, reticulate; petiole (5–) 8–10 mm long, 1–3 mm thick, flat above, widening at base of lamina, initially hairy then glabrescent. Inflorescences axillary and/or subterminal, paniculate-cymose with first or second order branching, 3–10 cm long, brownish hairy, few-flowered, branches 0.5–1 cm long, with 3– 6 flowers clustered at the tips. Flowers greyish; perianth lobes oblong to oblong obovate, densely appressed hairy, 2– 3 mm long; fertile stamens 1–2 mm long, anthers 2-locular, filaments c. 1/2 the length of the stamen; glands adnate at the middle part of filaments; staminodes 1.5–2 mm long, sagittate; ovary subglobose c. 1 mm long, ovary and style appressed hairy, stigma trilobed. Fruits globose, c. 5 by 5 mm; cupule shape, thick, c. 3 mm high, 5 – 6 mm diam, rim entire, undulating; perianth lobes caducous; pedicels c. 5 mm, obconical, hairy.

Distribution — Endemic to Borneo: Sabah (Ranau and Tambunan districts) and Sarawak (Julau district).

Habitat & Ecology — In submontane forest at altitudes above 1200 m.

Note — This species is a new record for Sarawak collected from Julau district ( S 50966 View Materials ). Previously, it was only known from Ranau district, Sabah. Cinnamomum kinabaluense resembles C. angustitepalum but differs by having a cupule with caducous perianth lobes (vs persistent), indumentum yellowish upon drying (vs reddish upon drying) and 2-locular anthers (vs 4-locular).