Shorea collaris

Shorea collaris is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet collaris means 'neck' and refers to the calyx of the fruit.

Description
Shorea collaris grows up to 50 m tall, with a trunk diameter of up to 1.5 m. It has buttresses measuring up to 2 m tall. The cracked bark is yellow to brown. The papery leaves are oblong to lanceolate and measure up to 23 cm long. The inflorescences measure up to 9 cm long and bear up to eight flowers. The nuts are egg-shaped and measure up to 3 cm long.

Distribution and habitat
Shorea collaris is endemic to Borneo. Its habitat is mixed dipterocarp forests, at elevations to 1000 m.

Conservation
Shorea collaris has been assessed as vulnerable on the IUCN Red List. It is threatened by logging, including for its timber. It is also threatened by expansion of land for plantations, including for palm oil and other tree species. The species is not found in any protected areas.