Trithuria cowieana is a species of aquatic plant in the family Hydatellaceae endemic to the Northern Territory, Australia.[1]
| Trithuria cowieana | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Hydatellaceae |
| Genus: | Trithuria |
| Species: | T. cowieana
|
| Binomial name | |
| Trithuria cowieana | |
| |
| Trithuria cowieana is endemic to the Northern Territory, Australia[1] | |
Description
editVegetative characteristics
editTrithuria cowieana is an annual aquatic plant with linear, max. 75 mm long, and 0.3–0.4 mm wide leaves. The plant turns red, once it reaches the flowering stage.[2]
Generative characteristics
editIt is a monoecious species with bisexual reproductive units ("flowers"). The reproductive units are produced on 2–110 mm long peduncles. They consist of 4–8(–10), 1.2–2.3 mm long, and (0.2)0.3–0.5(0.6) mm wide involucral bracts, as well as 20–40 carpels, and 1–3 stamens with red filaments.[2] The fruit is 0.28–0.41 mm long.[3] The reproductive units are likely to be self-pollinating.[4]
Distribution
editIt is endemic to the Northern Territory, Australia.[1]
Taxonomy
editTrithuria cowieana D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall was described by Dmitry Dmitrievich Sokoloff, Margarita Vasilyena Remizowa, Terry Desmond Macfarlane, and Paula J. Rudall in 2008.[2][1] The type specimen was collected at the edge of a swamp by C.R. Michell in Northern Marrawal Plateau, Nitmiluk National Park, Northern Territory, Australia on the 28th of March 2002.[5][2] It is placed in the section Trithuria sect. Altofinia.[3]
Etymology
editConservation
editThe conservation status is Data Deficient.[6] It is known from three localities.[2]
Ecology
editIt occurs in swamps,[2] and in sand along roads and vehicle tracks.[4]
References
edit- ^ a b c d e "Trithuria cowieana D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2 November 2024.
- ^ a b c d e f g 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.
- ^ a b Sokoloff, D. D., Remizowa, M. V., Macfarlane, T. D., Conran, J. G., Yadav, S. R., & Rudall, P. J. (2013). Comparative fruit structure in Hydatellaceae (Nymphaeales) reveals specialized pericarp dehiscence in some early–divergent angiosperms with ascidiate carpels. Taxon, 62(1), 40-61.
- ^ a b c 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.
- ^ Trithuria cowieana D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall. (n.d.). Australian Plant Name Index (APNI). Retrieved November 2, 2024, from https://biodiversity.org.au/nsl/services/rest/name/apni/226467
- ^ Northern Territory Government. (n.d.-b). Trithuria cowieana D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall. FloraNT. Retrieved November 2, 2024, from https://eflora.nt.gov.au/factsheet?id=27700