Trigobalanus verticillata
Content
Description
Tree 10-36 m, 20-70 cm ø, sometimes fluted, producing many sucker-shoots at the base;
Branchlets initially rather densely fulvous to rufous stellate-hairy, trigonous, later glabrous, terete, dark greyish brown, densely lenticellate or verrucose, lenticels minute;
Leaves in whorls of 3, coriaceous, rigid, (4-)6-8(-12) by (2-)3-4(-5½) cm (index 1.8-2.5), broadest at or slightly above the middle;
Stipules interpetiolar, ovate-lanceolate, 4-5 by 2-3 mm, sparsely stellate-hairy, soon caducous, leaving prominent scars.
Inflorescence male, androgynous or mixed, sparsely pubescent by stellate hairs;
Distribution
Asia-Tropical: Borneo present (Sabah present, Sarawak present); Malaya (Peninsular Malaysia present), Balleh present, Carapa Pila present, Central Celebes present, Fraser Hill present, Gajolands present, Mt Hose present, Mt Kinabalu present, N. Sumatra present, Pena, above Binuang, Mamasa, at3°S, 119°3' E present, South Losir Nature Reserve present, Ulu Baram present
Malesia: Malay Peninsula (common on Fraser Hill), Borneo (Sarawak: Mt Hose, Carapa Pila, Balleh, Ulu Baram; Sabah, common on Mt Kinabalu), Central Celebes (twice collected from Pena, above Binuang, Mamasa, at3°S, 119°3' E), N. Sumatra, South Losir Nature Reserve, Gajolands, c. 500 m (M. BORNER coll.). Collected in sterile state, obviously from suckers, as rhino food, but identity indubitably correct. .
Notes
Leaves collected from a basal shoot and also from the seedling measured 12-18 by 4-6 cm, with a long acuminate top, and are either alternate or decussate; the stipules are linear, up to 6 by 2 mm. Both in Malaya and in Borneo, the main trunk has been reported after dying off to be replaced by several subsidiary boles arising from the sucker-shoots. .
Dr. D. H. MAI () has attributed fossil remains of Dryo-phyllum from Europe to Trigonobalanus, which would enormously extend its former range. Mr. FORMAN rejects this reduction.
Dr. D. H. MAI () has attributed fossil remains of Dryo-phyllum from Europe to Trigonobalanus, which would enormously extend its former range. Mr. FORMAN rejects this reduction.