Hopea pentanervia

Hopea pentanervia
Conservation status
Vulnerable  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Dipterocarpaceae
Genus:	Hopea
Species:	H. pentanervia
Binomial name
Hopea pentanervia Symington ex G.H.S.Wood[2]

Hopea pentanervia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet pentanervia means "five-nerved", referring to the species' five pairs of leaf veins.[3]

Description

Hopea pentanervia grows as a canopy tree, up to 35 metres (110 ft) tall, with a trunk diameter of up to 1 m (3 ft). It has buttresses up to 1 m (3 ft) tall. The bark is cracked and flaked. The leathery leaves are ovate and measure up to 10 cm (4 in) long. The inflorescences measure up to 8 cm (3 in) long and bear cream flowers. The nuts are egg-shaped and measure up to 0.4 cm (0.2 in) long.[3]

Distribution and habitat

Hopea pentanervia is endemic to Borneo. Its habitat is peat swamp forest and kerangas forest, to elevations of 400 m (1,300 ft).[1][3]

Conservation

Hopea pentanervia has been assessed as vulnerable on the IUCN Red List. It is threatened by land conversion for palm oil plantations and for other agriculture and industry. It is also threatened by logging for its timber. The species is found in some protected areas.[1]

References

1. Randi, A.; Bodos, V.; Tanggaraju, S.; Hamidi, A.; Juiling, S.; Maryani, A. (2019). "Hopea pentanervia". IUCN Red List of Threatened Species. 2019: e.T31907A149069900. doi:10.2305/IUCN.UK.2019-3.RLTS.T31907A149069900.en. Retrieved 16 November 2021.
2. "Hopea pentanervia". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 7 September 2021.
3. Ashton, P. S. (2004). "Hopea 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. 172–173. ISBN 983-2181-59-3.