Cinnamomum angustitepalum Kosterm.

1. Cinnamomum angustitepalum Kosterm. View in CoL — Map 1 View Map 1

Cinnamomum angustitepalum Kosterm.(1969) View in CoL 455;(1970b) 31; J.A.R. Anderson (1980) 222. — Type: Bojeng S 16242 View Materials (holo BO; iso K, L, SAN, SAR, SING ), Borneo, Sarawak, Kuching district, Semengoh Forest Reserve. Cinnamomum turfosum Kosterm.(1969) View in CoL 466, syn. nov.— Type: Kostermans 13075 A (holo BO; iso L), Kalimantan, West Kutei, Gunung Palimasen.

Medium sized tree to 18 m tall, to 30 cm diam. Bark smooth, slightly flaked or fissured, greyish brown; inner bark cream, reddish brown or pink, strongly scented with cinnamon smell; sapwood whitish. Twigs terete, apically angular, 2 –3 mm diam, drying blackish to dark brown, hairy to glabrescent. Terminal buds not perulate, conical, c. 2 mm long, densely covered with curly hairs, pale brownish. Leaves opposite or subopposite, trinerved, coriaceous, covered with reddish brown curly hairs, if becoming glabrescent, remnant of indumentum always present on midrib below; blade ovate, ovate-elliptic or elliptic, (5–)6 –10 by 3– 5 cm, without domatia, base cuneate, apex acuminate, acumen 0.5 –1 cm long; midrib raised on both sides, c. 1 mm broad; lateral veins flat to impressed, making the leaf blade bullate, ending at base of acumen; major intercostal veins often not visible, if visible slender, subscalariform, 1– 2 mm apart, less prominent than midrib; minor intercostal veins indistinct, reticulate; petiole stout, shallowly grooved above, hairy or glabrous, 1–1.5 cm long, c. 2 mm diam. Inflorescences axillary and/or subterminal, paniculate-cymose, with first and second order branching, 2 – 9 cm long; rachis c. 1 mm broad, greyish hairy. Flowers yellowish green when fresh, drying greyish hairy; pedicels 2 –4 mm long; hypanthium c. 1 mm high; perianth lobes lanceolate, 4 – 5 mm long, hairy on both side, with abscission marking near the middle; fertile stamens 3 – 4 mm long, anthers 4-locular, oblong with truncate or obtuse tip, filaments 2/3 the length of the stamen; glands stalked, attached at the base of third whorl filaments; staminodes 1.5–2 mm long, sagittate; ovary globose to subglobose, 1–2 mm across, stigma trilobed. Fruits subglobose, c. 7 by 6 mm, orange when fresh, drying dark reddish; cupule shallow, c. 1 mm high, c. 2 mm diam, greyish hairy; perianth lobes partially persistent, broken at upper half leaving behind truncate apex, 1– 2 mm long; pedicel stout, c. 1–2 mm long, c. 1 mm diam, appressed hairy.

Distribution — Endemic to Borneo: Sarawak (Bintulu and Kuching districts) and East Kalimantan.

Habitat & Ecology — In primary mixed dipterocarp and kerangas forest, on sandy soil with a little peat, at altitudes to 800 m.

Vernacular names — Medang balong, Medang teja (both Malay).

Note — The fruit of the C. angustitepalum type specimen was overlooked by Kostermans (1969). After a close examination of the cited and newly identified specimens ( BRUN 1899, CWL 1414, Hallier 2469, KEP 79313, Kostermans 12949, S 10593 View Materials and S 37169 View Materials ), I am of the opinion that C. angustitepalum and C. turfosum are conspecific. Both of these species are similar in having reddish brown curly hairs, lateral veins extending to the base of acumen, inflorescence with short branches and lanceolate perianth lobes that are partially excised at fruiting stage. These characters also distinguish C. angustitepalum from the other Bornean Cinnamomum species.