Peripentadenia
| Peripentadenia | |
|---|---|
| |
| P. mearsii fruit | |
| |
| P. phelpsii flowers | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Spermatophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Oxalidales |
| Family: | Elaeocarpaceae |
| Genus: | Peripentadenia L.S.Sm.[1][2] |
| Type species | |
| Peripentadenia mearsii | |
| Species | |
|
See text | |
Peripentadenia is a genus of two species of plants from the family Elaeocarpaceae endemic to the rainforests of northeastern Queensland, Australia. Both species have at-risk conservation statuses.
Description
[edit]Plants in this genus are large, often buttressed trees reaching up to 35 m (115 ft) in height. They are mostly glabrous (without hairs); leaves are simple (i.e. without lobes or divisions), arranged spirally on the twigs, and have petioles that are often swollen at both ends; flowers are solitary or grouped in loose clusters and have five petals; fruit are capsules which split open at maturity; seeds one or rarely two, enclosed in a red aril.[3]: 809 [4]
Taxonomy
[edit]This genus was erected in 1957 by Australian botanist Lindsay Stuart Smith when he reviewed the species Actephila mearsii, which was described by Cyril Tenison White in 1938. At the time of White's naming, Actephila was placed in a large and polyphylletic family Euphorbiaceae. The immediate result of Smith's review was to move the species out of both the genus and the family, and place it in the family Elaeocarpaceae under his newly-erected genus. The closest relatives to Peripentadenia are thought to be Crinodendron and Dubouzetia.[3][5]: 137
Etymology
[edit]The name Peripentadenia is derived from the Ancient Greek words perí (about), pentă (five), and hădḗn (gland). It refers to the arrangement of the stamens around the five-lobed floral disc.[4]
Species
[edit]- Peripentadenia mearsii (C.T.White) L.S.Sm. – Near threatened[6]
- Peripentadenia phelpsii B.Hyland & Coode – Vulnerable[7]
Distribution
[edit]Both species grow in rainforest in the Wet Tropics bioregion of Queensland. P. mearsii mostly occurs on the eastern edge of the Atherton Tableland from about Millaa Millaa to about Gadgarra, with a small outlying group in Mount Lewis National Park.[8][9] P. phelpsii mostly occurs around the Mossman Gorge area.[10][11]
References
[edit]
- ^ a b "Peripentadenia L.S.Sm". Australian Plant Name Index (APNI). Centre for Australian National Biodiversity Research, Australian Government. Retrieved 6 May 2026.
- ^ "Peripentadenia L.S.Sm". Plants of the World Online. Royal Botanic Gardens, Kew. 2026. Retrieved 6 May 2026.
- ^ a b Coode, M.J.E. (1987). "Crinodendron, Dubouzetia and Peripentadenia, closely related in Elaeocarpaceae". Kew Bulletin. 42 (4): 777–814. Bibcode:1987KewBu..42..777C. doi:10.2307/4109929. JSTOR 4109929.
- ^ a b Cooper, Wendy; Cooper, William T. (June 2004). Fruits of the Australian Tropical Rainforest. Clifton Hill, Victoria, Australia: Nokomis Editions. p. 163. ISBN 9780958174213.
- ^ Coode, M.J.E. (2004). "Elaeocarpaceae". In Kubitzki, Klaus (ed.). Flowering Plants, Celastrales, Oxalidales, Rosales, Cornales, Ericales. The Families and Genera of Vascular Plants. Vol. 6. Berlin: Springer. p. 141. doi:10.1007/978-3-662-07257-8. ISBN 978-3-642-05714-4.
- ^ "Taxon - Peripentadenia mearsii". WildNet. Queensland Government. 2026. Retrieved 6 May 2026.
- ^ "Taxon - Peripentadenia phelpsii". WildNet. Queensland Government. 2026. Retrieved 6 May 2026.
- ^ F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Peripentadenia mearsii". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 21 June 2021.
- ^ "Search: species: Peripentadenia mearsii | Occurrence records". Australasian Virtual Herbarium. Australian Government. Retrieved 6 May 2026.
- ^ F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Peripentadenia phelpsii". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 21 June 2021.
- ^ "Search: species: Peripentadenia mearsii | Occurrence records". Australasian Virtual Herbarium. Australian Government. Retrieved 6 May 2026.