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Range of Dacrydium comosum (de Laubenfels 1988). Adapted from a map by www.expediamaps.com

 

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Conservation status 2010: protocol 2.3, needs updating

Dacrydium comosum

Corner 1939

Common names

Taxonomic notes

Description

"Shrub c. 2-4 m tall, 5 cm diam., on exposed ridge, to a tree at least 12 m tall. Densely branched with branches all turning upward and the aggregated tufts forming a nearly flat to umbrella-like crown. Juvenile leaves spreading perpendicular to the branch and then curving forward ± parallel with the branch, pungent, lanceolate, up to 33 mm long and c. 0.8 mm wide at the base, 0.2 mm thick, sharply keeled on the dorsal side, nearly flat or slightly concave on the axial side. Adult leaves similar to juvenile leaves except that the upper part is usually straight so that the apices are directed somewhat outward, 12-20 mm long, 0.6-1 mm wide but slightly expanded at the basal attachment, 0.2 mm thick. Fertile structures mostly lateral, subtended by a small cluster of reduced leaves which are c. 4 mm long. Pollen cones 8-10 mm long and c. 3 mm diam.; apex of the microsporophyll a narrow lanceolate spur 1.5-2 mm long and c. 0.5 mm wide. Seed-bearing structure consisting of several lanceolate bracts c. 2 mm long, one or two of which are usually fertile. The light brown, fully exposed seeds are 4-5 mm long" (de Laubenfels 1988).

Distribution and Ecology

Malaya. "[K]nown only from the crest separating Selangor and Pahang and on the G. Tahan massif; Pine Tree Hill; Ulu Kali; Ginting Highland... On exposed ridges as a local dominant in stunted mossy forest between 1440 and 2200 m" (de Laubenfels 1988).

The IUCN reports that this taxon is endangered. The population is restricted to an area of occupancy estimated to be less than 500 km2 that is severely fragmented or known to exist at no more than five locations; and is suffering a continuing decline in extent and/or quality of habitat. This assessment was performed in 1998 and needs to be updated.

Big tree

Oldest

Dendrochronology

Ethnobotany

Observations

Remarks

Citations

See also

Dallimore et al. (1967).

De Laubenfels (1969).

Last Modified 2012-11-23