Trithuria sect. Hamannia
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| Trithuria sect. Hamannia Temporal range: Upper Miocene – Recent[1] | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Hydatellaceae |
| Genus: | Trithuria |
| Section: | Trithuria sect. Hamannia D.D. Sokoloff, Iles, Rudall & S.W. Graham[2] |
| Type species | |
| Trithuria lanterna | |
| Species | |
Trithuria sect. Hamannia is a section within the genus Trithuria[2] native to Australia and India.[3]
The dehiscent,[2][3] elliptical,[3] apocarpous, monomerous follicle fruit[4] has three longitudinal pericarp ribs.[2] The fruit does not have papillae, doesn't have distinct epicuticular wax deposits, and the apex does not have thickened endocarp cells.[2] The fruit apex also does not have a distinct beak.[3] The fruit splits into three parts along the longitudinal ribs.[4] The smooth seed has a thick cuticle. The sheathless cotyledon is strongly reduced.[2]
Taxonomy
It was described by Dmitry Dmitrievich Sokoloff, William J. D. Iles, Paula J. Rudall, and Sean W. Graham in 2012 with Trithuria lanterna D.A. Cooke as the type species.[2]
Species
- Trithuria polybracteata D.A.Cooke ex D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall
- Trithuria konkanensis S.R.Yadav & Janarth.
- Trithuria lanterna D.A.Cooke
Etymology
The section name Hamannia honours Ulrich Hamann who worked on[2] and described the family Hydatellaceae.[6]