Macarthuria

Macarthuria is a genus of dicotyledonous plants belonging to the family Macarthuriaceae,[2] and consists of about 9 species which are endemic to Australia.[3]

Macarthuria
Macarthuria australis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Macarthuriaceae
Genus: Macarthuria
Hugel ex Endl.[1]
Type species
Macarthuria australis[1]
Diversity
About 9 species

Description

Plants in the genus, Macarthuria, are rigid or wiry herbs or subshrubs.[4] The leaves are usually basal, with short petioles, with leaves on the stems being alternate and reduced to scales.[4]The flowers are small and have stems.[4] The outer perianth whorl is 5-partite and persists persistent, and the inner perianth is 5-lobed and petaloid, or absent. The flowers have 8 stamens whose filaments are united at the base. The ovary is 3-locular and superior, with each locule having 1-3 ovules. There are three styles and the placentation is basal.[4] The fruit is a capsule and dehisces in 3 valves. The seeds have arils.[4]

Accepted species

(according to Plants of the World Online)[5]
Macarthuria apetala Harv.
Macarthuria australis Hügel ex Endl.
Macarthuria complanata E.M.Ross
Macarthuria ephedroides C.T.White
Macarthuria georgeana Keighery
Macarthuria intricata Keighery
Macarthuria keigheryi Lepschi
Macarthuria neocambrica F.Muell.
Macarthuria vertex Lepschi

Etymology

Macarthuria is named to honour Sir William Macarthur (1800 – 1882), son of Captain John Macarthur.[6]

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References
  1. "Macarthuria". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 14, July 2017 [and more or less continuously updated since]. http://www.mobot.org/MOBOT/research/APweb/.
  3. "Macarthuria". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. Jacobs, S.W.L. & J. Highet, J. (1999) PlantNET: Macarthuria. National Herbarium of NSW, Royal Botanic Garden, Sydney, Australia.
  5. Govaerts, R. et. al. (2018) Plants of the world online: Macarthuria. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 9 December 2018.
  6. Friends of Queen Park: Macarthuria keigheryi. Retrieved 10 December 2018.
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