Horsfieldia irya (Gaertn.) Warb.,  Mon. Myrist. (1897)
Latin for the local name of this species.

Synonyms
Horsfieldia acuminata Merr., Horsfieldia amklaal Kaneh., Horsfieldia congestiflora A.C.Sm., Horsfieldia labillardieri Warb., Horsfieldia lemanniana (A.DC.) Warb., Horsfieldia nunu Kaneh., Horsfieldia subglobosa (Miq.) Warb., Myristica globularia var. subglobosa (Miq.) Miq., Myristica irya Gaertn., Myristica irya var. longifolia King, Myristica irya var. wallichii King, Myristica javanica Blume, Myristica labillardieri (Warb.) Boerl., Myristica lemanniana A.DC., Myristica micrantha Wall., Myristica spherocarpa Wall., Myristica subglobosa Miq., Myristica vrieseana Miq.

Description
Upper canopy tree up to 47 m tall and 112 cm dbh. Stem with red sap. Stipules absent. Leaves alternate, simple, penni-veined, glabrous to sparsely hairy. Flowers ca. 2 mm diameter, yellow-cream, placed in panicles. Fruits ca. 17 mm diameter, yellow-orange, glabrous, dehiscent capsules. Seeds with undivided red aril.

Ecology
In undisturbed to slightly disturbed (open) coastal, swamp and mixed dipterocarp forests up to 300 m altitude. Usually on periodically inundated sites, sometimes within tidal zone along rivers or streams, or swamps. On sandy soils. In secondary forests usually present as a pre-disturbance remnant. Seeds contain an air chamber for dispersal by water.

Uses
The wood is locally used for timber and as bottle lid. Fruits are edible.

Distribution
From Sri Lanka, Burma and Indo-China to New Guinea and the Solomon Islands. In Borneo collected throughout the island.

Local names in Borneo
Darah-darah, Kumpang, Piasau mamau, Salinguat.