Aporosa tetrapleura

Aporosa tetrapleura is a species of plant in the family Phyllanthaceae found in Cambodia and Vietnam. The wood is used in house and cattle barn construction and as firewood.

Aporosa tetrapleura
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Phyllanthaceae
Genus: Aporosa
Species:
A. tetrapleura
Binomial name
Aporosa tetrapleura
Hance
Synonyms[1]

none

Taxonomy and history

A. tetrapleura is in a clade with sisters Aporosa ficifolia, A. octandra, A. planchoniana, and A. villosa, separated from other species within the Appendiculatae section of the Aporosa genus.[2]

The species was first described by Henry Fletcher Hance (1827-86), an English diplomat and botanist, who worked in Zhōngguó/China from 1844 to his death. He published the description in 1876 in the Journal of Botany, British and Foreign.[3]

Description

A. tetrapleura is a tree, usually small, but up to 12m in height, with a trunk some 10cm in diameter[4] The petioles are some 9 to 21mm long. The leaves have large black basal glands; a (narrowly) elliptic leather and shiny blade, which when dry is often rather brittle; an acute to acuminate apex; and 6 to 8 pairs of nerves. Inflorescences occur axillary or just below the leaves. Laxly set flowers with 4 sepals and 2 stamens in the staminate flowers. The fruit are 11 to 14mm long, they are not stiped, and only the immature fruit are beaked, at the sutures there is ridging; the pericarp is 0.5-1.55mm thick. Flowering occurs in April and December, fruiting in March and June.

Distribution

The species is found in Cambodia and in south and central Vietnam.[1]

Habitat and ecology

The tree occurs in forests, favouring granitic soils at about 300m altitude.[4]

The primary forest adjacent to Khe Tran village (Phong Mỹ commune, Thừa Thiên Huế Province, central Vietnam) have Adinandra cf. hainanensis (Theaceae), A. tetrapleura and Aporosa octandra as the most abundant species.[5]

Vernacular names

A long mom pu xá, a long môt, mom are names used by Pahy and Vietnamese language speakers at Khe Tran village, Vietnam.[5]

Use

Large trees of this species from primary provides timber for house and light (cattle barn) construction, and wood for firewood in the Khe Tran village, Vietnam.[5] Smaller trees from secondary forest provide firewood and light (cattle barn) construction timber

Further reading
  • Govaerts, R., 1995, World Checklist of Seed Plants 1(1, 2), MIM, Deurne
  • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A., 2000, World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4, The Board of Trustees of the Royal Botanic Gardens, Kew
  • Schot, Anne M., 2004, 'Systematics of Aporosa (Euphorbiaceae), Blumea, Supplement 17:1-381

References
  1. "Aporosa tetrapleura Hance". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 28 February 2021.
  2. Shuichiro Tagane; Van Son Dang; Hironori Toyama; Akiyo Naiki; Hidetoshi Nagamasu; Tetsukazu Yahara; Hop Tran (2015). "Aporosa tetragona Tagane & V. S. Dang (Phyllanthaceae), a new species from Mt. Hon Ba, Vietnam". PhytoKeys (57): 51–60. doi:10.3897/phytokeys.57.6347. PMC 4698514. PMID 26752961.
  3. "Aporosa tetrapleura Hance, J. Bot. 14: 260 (1876)". International Plant Name Index (IPNI). The Royal Botanic Gardens, Kew. Retrieved 28 February 2021.
  4. Schot, Anne Marketta (2004). Systematics of Aporosa (Euphorbiaceae) (PDF). Netherlands: PhD thesis, Universiteit Leiden. p. 262. Retrieved 21 February 2021.
  5. Boissière, Manuel; with four others (2006). Biodiversity and Local Perceptions on the Edge of a Conservation Area, Khe Tran Village, Vietnam (PDF). Bogor, Indonesia: Center for International Forestry Research (CIFOR). ISBN 979-24-4642-7. Retrieved 28 February 2021.
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