Myristica simiarum subsp. calcarea
Tree 20-36 m. Leaves: Fruits broad-ellipsoid, 3.5(-4) by 2.5-3 cm, apex blunt-acute, at base contracted into a pseudostalk 2-4 mm long, 3-4 mm broad;
Asia-Tropical: Borneo present, W & NE Kalimantan present, W Sarawak present
Malesia: Borneo (W & NE Kalimantan, W Sarawak).
Almost all collections are from limestone or lime-containing soils; once from sandy clay derived from granite. Distinguished by the large, brown-yellow flowers and large fruits, and the leaves with persistent, dense, golden indumentum on the lower surface. The fruits may recall those of small-fruited M. elliptica.