Trithuria sect. AltofiniaTrithuria sect. Altofinia is a section within the genus Trithuria native to Australia.DescriptionThe indehiscent, slightly beaked, apocarpous berry fruit with papillae does not have longitudinal ribs or distinct epicuticular wax deposits on the surface. The fruit stalk bears a distal constriction, serving as an abscission zone. The smooth seeds have a thick cuticle.TaxonomyIt was described by Dmitry Dmitrievich Sokoloff, William J. D. Iles, Paula J. Rudall, and Sean W. Graham with Trithuria cowieana as the type species.SpeciesIt has two species:Trithuria cookeana ''Trithuria cowieana''EtymologyThe section name Altofinia is derived from altus meaning elevated or high, and finis meaning limit or boundary. It refers to the geographic distribution of its species, which occur on the upper end of the Northern Territory, Australia.DistributionIts species occur in Australia.PhylogenyTrithuria sect. Altofinia split from Trithuria sect. Hamannia about 6 million years ago in the Upper Miocene.