Trithuria austinensis is a species of aquatic plant in the family Hydatellaceae endemic to Western Australia.[1]
| Trithuria austinensis | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Hydatellaceae |
| Genus: | Trithuria |
| Species: | T. austinensis
|
| Binomial name | |
| Trithuria austinensis | |
| |
| Trithuria austinensis is endemic to Western Australia[1] | |
Description
editVegetative characteristics
editTrithuria austinensis is an annual herb with green to red, 20–40 mm long, linear leaves.[2]
Generative characteristics
editIt is a dioecious species[3][2] and in large populations male and female plants occur at equal rates.[4] The peduncles of the reproductive units ("flowers") are 10–50 mm long. In male plants, the 2-8 reproductive units consist of 2-4 4.2–7.2 mm long, and 1.0–3.0 mm wide bracts, and 3-15 stamens. In female plants, the up to 30 reproductive units are composed of 3-4 bracts, and 17-22 carpels. The bracts of the female reproductive units exhibit two different shapes.[2]
Taxonomy
editTrithuria austinensis D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall was published by Dmitry Dmitrievich Sokoloff, Margarita Vasilyena Remizowa, Terry Desmond Macfarlane & Paula J. Rudall in 2008.[2][1] The type specimen was collected by N. Gibson and M. Lyons in Austin Bay Nature Reserve, Australia on the 16th of November 1995.[2][5]
Etymology
editThe specific epithet austinensis refers to the type locality.[2]
Ecology
editHabitat
editIt has some tolerance towards salty water.[6]
Conservation
editIt is not threatened.[7] It is known from several populations.[6]
References
edit- ^ a b c d "Trithuria austinensis D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 17 October 2024.
- ^ a b c d e f Sokoloff, D. D., Remizowa, M. V., Macfarlane, T. D., & Rudall, P. J. (2008). Classification of the early‐divergent angiosperm family Hydatellaceae: One genus instead of two, four new species and sexual dimorphism in dioecious taxa. Taxon, 57(1), 179-200.
- ^ Iles, W. J., Rudall, P. J., Sokoloff, D. D., Remizowa, M. V., Macfarlane, T. D., Logacheva, M. D., & Graham, S. W. (2012). Molecular phylogenetics of Hydatellaceae (Nymphaeales): Sexual‐system homoplasy and a new sectional classification. American Journal of Botany, 99(4), 663-676.
- ^ Remizowa, M. V., Sokoloff, D. D., Macfarlane, T. D., Yadav, S. R., Prychid, C. J., & Rudall, P. J. (2008). Comparative pollen morphology in the early‐divergent angiosperm family Hydatellaceae reveals variation at the infraspecific level. Grana, 47(2), 81-100.
- ^ "Trithuria austinensis". International Plant Names Index. (n.d.). Retrieved October 17, 2024.
- ^ a b Sokoloff, D. D., Remizowa, M. V., Macfarlane, T. D., Yadav, S. R., & Rudall, P. J. (2011). Hydatellaceae: a historical review of systematics and ecology. Rheedea, 21(2), 115-138.
- ^ "Western Australian Herbarium (1998–)". Florabase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. Retrieved 18 October 2024.