Alloxylon brachycarpum

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Alloxylon brachycarpum
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
Order: Proteales
Family: Proteaceae
Genus: Alloxylon
Species: A. brachycarpum
Binomial name
Alloxylon brachycarpum
(Sleumer) P.Weston & M.Crisp
Synonyms

Oreocallis brachycarpa (Sleumer) Sleumer

Alloxylon brachycarpum is a species of plant in the family Proteaceae. It is found in Indonesia and Papua New Guinea. It is threatened by habitat loss.

Dutch botanist Herman Sleumer described this species as Embothrium brachycarpum in 1939 before transferring it to the genus Oreocallis. The species name is derived from the Ancient Greek words brachy- "short" and carpus "fruit". However the fruit of the type specimen were deformed and the species in fact has the largest fruit of the genus.[1]

Peter Weston and Mike Crisp of the Royal Botanic Gardens in Sydney reviewed and recognised the Australasian members of the genus Oreocallis as distinct from their South American counterparts, and hence reallocated them to the new genus Alloxylon in 1991.[2]

Local native names include kawoli in Merauke, and anga in Trangan.[1]

Alloxylon brachycarpum grows as a tree reaching 20–40 m high, with a rough, flaking grey to brown trunk. The adult leaves are simple and oval shaped, measuring 6–15 cm long by 2.5–5 cm wide with entire margins. The orange-red flower heads each contain 8 to 25 individual flowers arranged in racemes. These are followed by the development of the leathery seed pods, or fruit, up to 14 cm long and 2.5 cm wide, each of which contain 10-14 winged seeds in two rows.[1] It resembles the Australian species A. flammeum, which has longer, narrower leaves and brighter flowers.[3]

Alloxylon brachycarpum is found in dry rainforest and eucalypt-bamboo forest in southern New Guinea, along the Upper Merauke River, Lower Fly River and Oriomo River, and in the Aru Islands.[1] Its ecological community is threatened by logging.[4]

References[edit]

  1. ^ a b c d Sleumer, Hermann (1956). C.G.G.J. van Steenis, ed. Flora Malesiana. Series I, Seed plants. 5. Jakarta, Indonesia: Noordhoff-Kolff. pp. 201–03. 
  2. ^ Weston, Peter H.; Crisp, Michael D. (1991). "Alloxylon (Proteaceae), a new genus from New Guinea and eastern Australia" (pdf). Telopea. 4 (3): 497–507. 
  3. ^ Crisp, Michael D.; Weston, Peter H. (1995). "Telopea". In McCarthy, Patrick. Flora of Australia: Volume 16: Eleagnaceae, Proteaceae 1. Collingwood, Victoria: CSIRO Publishing / Australian Biological Resources Study. pp. 382–90. ISBN 0-643-05693-9. 
  4. ^ Eddowes, P.J. 1998. Alloxylon brachycarpum. 2006 IUCN Red List of Threatened Species. Archived June 27, 2014, at the Wayback Machine. Downloaded on 20 August 2007