Hopea rudiformis

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Hopea rudiformis
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Dipterocarpaceae
Genus: Hopea
Species:
H. rudiformis
Binomial name
Hopea rudiformis

Hopea rudiformis is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet rudiformis means 'sword-shaped', referring to the leaf. [3]

Contents

Description

Hopea rudiformis grows below the forest canopy, up to 35 metres (110 ft) tall, with a trunk diameter of up to 40 cm (16 in). It has buttresses up to 1 m (3 ft), as well as flying (detached) buttresses and stilt roots. The bark is smooth and greyish. The leathery leaves are shaped ovate to lanceolate and measure up to 14 cm (6 in) long. The inflorescences measure up to 3.5 cm (1 in) and bear up to three purple-red flowers. The nuts are egg-shaped or roundish, measuring up to 0.8 cm (0.3 in) long. [3]

Distribution and habitat

Hopea rudiformis is endemic to Borneo. Its habitat is lowland rain forests, sometimes in swamps, to elevations of 500 m (1,600 ft). [1]

Conservation

Hopea rudiformis has been assessed as critically endangered on the IUCN Red List. It is threatened mainly by logging for its timber. It is also threatened by land conversion for agriculture. In Kalimantan, the species is threatened by fires. The species is found in some protected areas. [1]

Related Research Articles

Hopea aequalis is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet aequalis means "equal" and refers to the lobes of the fruit's calyx.

Hopea altocollina is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet altocollina means "high hills", referring to the species' habitat.

Hopea centipeda is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet centipeda means "hundred feet", referring to the stilt roots.

Hopea enicosanthoides is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet enicosanthoides refers to the leaves' resemblance to those of the genus Enicosanthum.

Hopea fluvialis is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet fluvialis means "of rivers", referring to species' habitat.

Hopea griffithii is a tree in the family Dipterocarpaceae. It is named for the British doctor and naturalist William Griffith.

Hopea longirostrata is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet longirostrata means "long-beaked", referring to the shape of the fruit.

Hopea micrantha is a tree in the family Dipterocarpaceae. The specific epithet micrantha means "small flower".

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Hopea pedicellata is a tree in the family Dipterocarpaceae. The specific epithet pedicellata, refers to the species' prominent pedicel.

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.

Hopea sangal is a tree in the family Dipterocarpaceae. It is native to tropical Asia.

Hopea semicuneata is a tree in the family Dipterocarpaceae. The specific epithet semicuneata means "half wedge-shaped", referring to the leaf base.

Hopea sphaerocarpa is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet sphaerocarpa means "round fruit".

Hopea andersonii is a tree in the family Dipterocarpaceae, native to Borneo. It is named for J. A. R. Anderson, a forest officer on the island.

Hopea bullatifolia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet bullatifolia means 'blistered leaf'.

Hopea tenuinervula is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet tenuinervula means 'slender nerve', referring to the leaf veins.

Hopea treubii is a tree in the family Dipterocarpaceae, native to Borneo. It is named for the Dutch botanist Melchior Treub.

Hopea vacciniifolia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet vacciniifolia refers to the leaves' similarity to those of the genus Vaccinium.

Hopea wyattsmithii is a tree in the family Dipterocarpaceae, native to Borneo. It is named for the botanist John Wyatt-Smith.

References

  1. 1 2 3 Randi, A.; Kusumadewi, Y.; Hoo, P.K.; Maycock, C.R.; Khoo, E.; Julia, S.; Robiansyah, I. (2019). "Hopea rudiformis". IUCN Red List of Threatened Species . 2019: e.T37525A149073870. doi: 10.2305/IUCN.UK.2019-3.RLTS.T37525A149073870.en . Retrieved 20 November 2021.
  2. ↑ "Hopea rudiformis". Plants of the World Online . Royal Botanic Gardens, Kew. Retrieved 14 August 2021.
  3. 1 2 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. 176, 177. ISBN   983-2181-59-3.


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