Cinnamomum soegengii Kosterm.

Wuu-Kuang, Soh, 2011, Taxonomic revision of Cinnamomum (Lauraceae) in Borneo, Blumea 56 (3), pp. 241-264 : 258

publication ID

https://doi.org/10.3767/000651911X615168

persistent identifier

https://treatment.plazi.org/id/03FA87C9-A230-EE11-B16A-FEB3FDD3EB40

treatment provided by

Felipe

scientific name

Cinnamomum soegengii Kosterm.
status

 

21. Cinnamomum soegengii Kosterm. View in CoL — Map 7 View Map 7

Cinnamomum soegengii Kosterm. (1970b) 67; Beaman et al. (2001) 400. — Type: Chew & Corner RSNB 4750 (holo SAR, not found; iso K, SAN, SING ), Sabah, Ranau district, Gunung Kinabalu, Mesilau .

Cinnamomum grandis Kosterm. (1988) 443; Beaman et al. (2001) 399, syn. nov. — Type: Wood SAN 16706 (holo L; iso BO, KEP,SAN,SING ), Sabah, Sipitang district, Gunung Lumaku.

Tree to 40 m tall, 10–70 cm diam. Bark smooth, brownish; inner bark pink-reddish or orange-brownish. Sapwood yellowish whitish. Twigs stout, terete, apically subangular, 2 – 3 mm diam, glabrous, yellowish brown. Terminal buds not perulate, conical, 2– 3 mm long, densely covered with straight appressed hairs. Leaves opposite or subopposite, yellowish brown, trinerved, coriaceous, glabrous below, occasionally remnant of straight appressed hairs from young leaves present on midrib of mature leaves; blade not bullate, without domatia, ovate to oblong-elliptic, 10–15(– 20) by 3– 6.5 cm, base cuneate, apex acute; midrib raised on both sides, c. 1 mm broad; lateral veins raised on both sides, extending to the leaf tip; major intercostal veins slender, subscalariform, 2– 3 mm apart, less prominent than midrib; minor intercostal veins indistinct, reticulate; petiole stout, subterete, glabrous, 1–1.5 cm long, c. 2 mm diam. Inflorescences axillary and/or subterminal, stout, paniculate-cymose with second order branching, many-flowered, appressed hairy, to 9 cm long; rachis c. 1 mm broad. Flowers with appressed hairs; pedicels c. 3 mm long; hypanthium c. 1 mm high; perianth lobes elliptic, c. 2 mm long; fertile stamens c. 1.5 mm long, anthers 4-locular, ovoid with obtuse tip, filaments c. 3/4 the length of the stamen; glands sessile, attached at the middle of filaments; staminodes c. 1 mm long, sagittate; ovary subglobose, c. 1.5 mm across; stigma trilobed. Infructescences stout, 5– 20 cm long; rachis 1–1.5 mm broad, appressed hairy. Fruits oblong-ellipsoid, 1.5– 2 by 1 cm, bluish green when fresh; cupule cup-shaped, deep, 0.7–1 cm high, c. 1 cm diam, rim entire, not undulating, appressed hairy, wall smooth; perianth lobes caducous; pedicel stout, obconical, c. 5 mm long, c. 3 mm diam at apex tapering to 1 mm at base.

Distribution — Endemic to Borneo, known only in Sabah (Lahad Datu, Ranau, Sipitang and Tambunan districts).

Habitat & Ecology — In mixed dipterocarp and lower montane forest at 700 –1800 m altitudes.

Vernacular name — Medang teja (Malay).

Uses — The wood is used as timber.

Notes — 1. The only difference between the type of C. soegengii and C. grandis is that the leaf shape is ovate-elliptic or oblong, respectively. SAN 29076 and SAN 41798 show intermediate leaf shapes ranging from ovate, elliptic to oblong.

2. This species resemble C. sintoc but differs in its lateral veins extending to the leaf tip (vs lateral veins 1/2 –2/3 the length of leaf blade). The specimen Clemens 31108 annotated as C. sintoc in Kostermans (1970b) belongs to C. soegengii .

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Laurales

Family

Lauraceae

Genus

Cinnamomum

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