Ceratopetalum corymbosum
| Ceratopetalum corymbosum | |
|---|---|
 | |
| Herbarium specimen | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Oxalidales |
| Family: | Cunoniaceae |
| Genus: | Ceratopetalum |
| Species: | C. corymbosum |
| Binomial name | |
| Ceratopetalum corymbosum | |
Ceratopetalum corymbosum, commonly known as mountain sycamore, is a species of plant in the family Cunoniaceae. It is endemic to a very small part of the Wet Tropics bioregion of Queensland, Australia and has been given the conservation status of critically endangered.
Description
Ceratopetalum corymbosum is a small tree with trifoliate leaves arranged in opposite pairs, and stipules about 10 mm (0.39 in) long. The leaflets are stiff and sessile, measuring up to 8 cm (3.1 in) long and 3 cm (1.2 in) wide. The inflorescences take the form of a corymb and are terminal, i.e. they grow from the ends of the twigs. The flowers are fragrant, the calyx tube is about 2 mm (0.08 in) diameter and the tepals about 5 mm (0.2 in) long. The fruit is about 15 mm (0.6 in) long and five-winged.[4][5]
Taxonomy
It was first described in 1942 by Cyril Tenison White, based on material collected by Hugo Flecker from Thornton Peak.[5] It is most closely related to Ceratopetalum iugumensis and Ceratopetalum macrophyllum.[6]
Distribution and habitat
Ceratopetalum corymbosum is restricted to the area between the Daintree River and Cape Tribulation, mostly at around 1,200–1,300 m (3,900–4,300 ft) altitude on Thornton Peak.[7] It grows in stunted rainforest.[4][6]
Conservation
This species has been assessed as having the conservation status of critically endangered by the Queensland Government under its Nature Conservation Act.[1] As of May 2026, it has not been assessed by the International Union for Conservation of Nature.
References
- 1 2 "Taxon - Ceratopetalum corymbosum". WildNet. Queensland Government. 2026. Retrieved 12 May 2026.
- ↑ "Ceratopetalum corymbosum C.T.White". Australian Plant Name Index (APNI). Centre for Australian National Biodiversity Research, Australian Government. Retrieved 12 May 2026.
- ↑ "Ceratopetalum corymbosum C.T.White". Plants of the World Online. Royal Botanic Gardens, Kew. 2026. Retrieved 12 May 2026.
- 1 2 F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Ceratopetalum corymbosum". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 12 May 2026.
- 1 2 White, C.T. (1942). "Contributions to the Queensland Flora, No. 7". The Proceedings of the Royal Society of Queensland. 53: 201–238.
- 1 2 Rozefelds, Andrew C.; Barnes, Richard W. (2002). "The Systematic and Biogeographical Relationships of Ceratopetalum (Cunoniaceae) in Australia and New Guinea". International Journal of Plant Sciences. 163 (4): 651–673.
- ↑ "Search: species: Ceratopetalum corymbosum | Occurrence records". Australasian Virtual Herbarium. Australian Government. Retrieved 12 May 2026.
External links
- Map of herbarium collections of this species at the Australasian Virtual Herbarium
- Observations of this species on iNaturalist
- Images of this species on Flickriver.com