The Gymnosperm Database


Range of Dacrydium magnum (de Laubenfels 1988). Adapted from a map by


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Conservation status 2010: protocol 2.3, needs updating

Dacrydium magnum

de Laub. 1969

Common names

Taxonomic notes

Syn: D. beccari var. rudens de Laub. 1969. "The variety rudens was applied to collections from Tagula I. that tend to be more gracile than elsewhere but otherwise are not distinct" (de Laubenfels 1988).


"Tree, 8-30 m tall, 5-60 cm diam. Branches dense, spreading, upturned. Juvenile leaves spreading widely, slightly curved forward at the tip, pungent, triangular in cross section, gracile, up to at least 18 mm long. Adult leaves spreading at about a 45 angle and strongly curved forward so that the apiculate tip is parallel to the branch or bent slightly inward, forming a compact rope-like branch system, linear-lanceolate, 3-6 mm long but nearly uniform on a branch, 0.3-0.4 by 0.2-0.3 mm. Fertile structures mostly terminal but occasionally on short lateral branches, the subtending leaves hardly distinguishable from ordinary foliage leaves. Pollen cones 10-16 mm long and 2 mm in diameter. Apex of the microsporophyll a lanceolate spur 1.5-2 mm long and 0.5 mm wide at the base. Seed-bearing structure formed of more or less straight and slightly spreading leaf-like bracts which cover the base of the seed. The ripe fruit reported to be brown but possibly an old fruit as has been observed in other species. Seed 5 mm long, often two seeds per cone" (de Laubenfels 1988).

Distribution and Ecology

Solomon Islands (Guadalcanal, Choiseul, S. Ysabel); Louisiades (Sudest I.) and Moluccas (Obi I.). Rare, but "locally common in the canopy of moist tropical forest between 60 and 1200 m, often along ridge crests where it has a somewhat reduced stature" (de Laubenfels 1988).

Big tree







See also

Last Modified 2017-12-29