Rubroshorea coriacea

Rubroshorea coriacea
Conservation status
Near Threatened  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Dipterocarpaceae
Genus:	Rubroshorea
Species:	R. coriacea
Binomial name
Rubroshorea coriacea (Burck) P.S.Ashton & J.Heck.
Synonyms [2]
Shorea coriaceaBurck

Rubroshorea coriacea is a tree in the family Dipterocarpaceae, native to Borneo.

The species was first described as Shorea coriacea by William Burck in 1887. ^[2] The specific epithet coriacea means 'leathery' and refers to the leaves. ^[3] In 2022 Peter Shaw Ashton and Jacqueline Heckenhauer placed the species in genus Rubroshorea as R. coriacea. ^[2]

Description

Rubroshorea coriacea grows up to 50 metres (160 ft) tall, with a trunk diameter of up to 1.4 m (5 ft). It has buttresses measuring up to 1.5 m (5 ft) tall. The dark brown bark is flaky and fissured. The leathery leaves are ovate and measure up to 15 cm (6 in) long. The inflorescences measure up to 14 cm (6 in) long and bear up to ten pink flowers. The nuts are egg-shaped and measure up to 1.8 cm (1 in) long. ^[3]

Distribution and habitat

Rubroshorea coriacea is endemic to Borneo. Its habitat is kerangas and mixed dipterocarp forests up to 1,200 m (4,000 ft) elevation. ^{[1] [3]}

Conservation

Shorea coriacea has been assessed as near threatened on the IUCN Red List. It is threatened by agriculture, mining, road and village development and by logging for its timber. However, the species does occur in a number of protected areas in Sabah and Sarawak. ^[1]

References

1. Robiansyah, I.; Kusumadewi, Y.; Randi, A.; Julia, S.; Hoo, P.K.; Khoo, E. & Maycock, C.R. (2019). "Shorea coriacea". IUCN Red List of Threatened Species . 2019 e.T36298A137472624. doi: 10.2305/IUCN.UK.2019-3.RLTS.T36298A137472624.en . Retrieved 3 October 2022.
2. "Rubroshorea coriacea". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 20 January 2026.
3. Ashton, P. S. (2004). "Shorea Roxb.". In Soepadmo, E.; Saw, L. G.; Chung, R. C. K. (eds.). Tree Flora of Sabah and Sarawak. Vol. 5. Forest Research Institute Malaysia. pp. 243–244. ISBN   983-2181-59-3.