Trithuria australis
From Wikipedia, the free encyclopedia
| Trithuria australis | |
|---|---|
_(20402793025).jpg) | |
| Botanical illustration of Trithuria australis | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Hydatellaceae |
| Genus: | Trithuria |
| Section: | Trithuria sect. Hydatella |
| Species: | T. australis |
| Binomial name | |
| Trithuria australis | |
 | |
| Trithuria australis is endemic to Western Australia[1] | |
| Synonyms[1] | |
| |
Trithuria australis is a species of aquatic plant in the family Hydatellaceae endemic to Western Australia.[1]
Vegetative characteristics
Trithuria australis is an annual,[2] submerged aquatic plant. The terete, pointed leaves are 20–25 mm long, and 0.3 mm wide.[3]
Generative characteristics
The reproductive units ("flowers") are unisexual. Both female and male reproductive units are present on the same plant.[2] The reproductive units are sessile or exhibit very short peduncles.[4] The male reproductive unit has 3-8 stamens.[2] The seed coat is brown[3] and smooth.[2] It is believed to be self-pollinating.[4][5][6]
Cytology
The chromosome count is 2n = 14.[5]
Distribution
Taxonomy
Trithuria australis (Diels) D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall was first described as Hydatella australis Diels by Friedrich Ludwig Emil Diels in 1904.[1][3] Later it was included in the genus Trithuria Hook.f. as Trithuria australis (Diels) D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall by Dmitry Dmitrievich Sokoloff, Margarita Vasilyena Remizowa, Terry Desmond Macfarlane & Paula J. Rudall in 2008.[1][2] The type specimen was collected by L. Diels in Hamersley River, Western Australia in October 1901.[2] It is included in Trithuria sect. Hydatella (Diels) D.D. Sokoloff, Iles, Rudall & S.W. Graham, of which it is the type species.[5]