Hollandaea
| Hollandaea | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Subfamily: | Grevilleoideae |
| Genus: |
Hollandaea F.Muell. |
| Type species | |
|
Hollandaea sayeri (F.Muell.) F.Muell. – a nomenclatural synonym of: Hollandaea sayeriana (F.Muell.) L.S.Sm. |
|
| Species | |
|
See text |
|
See text
Hollandaea is a genus of four species known to science, of Australian rainforest trees, constituting part of the plant family Proteaceae.
All four species of trees grow naturally only (endemic) in restricted areas of the rainforests of the Wet Tropics region of north eastern Queensland.
European science formally described this genus in 1887, authored by German–Australian government botanist Ferdinand von Mueller, who named it in honour of Sir Henry Holland, Secretary of State for the Colonies from 1888 to 1892.
Lawrie Johnson and Barbara G. Briggs noted the unusual fruits and placed genus in its own subtribe Hollandaeinae within the tribe Helicieae in the subfamily Grevilleoideae in their 1975 monograph "On the Proteaceae: the evolution and classification of a southern family". Molecular genetic analysis shows Hollandaea correlates most closely with the genus Helicia and the two are classified in the subtribe Heliciinae within the tribe Roupaleae.
Hollandaea sayeriana is a species of small trees growing naturally only in the region of Mounts Bellenden Ker,Bartle Frere and the eastern Atherton Tableland. They grow naturally as understory trees beneath the canopy of rainforests, from the lowlands to tablelands, up to about 800 m (2,600 ft) altitude. As of December 2013[update] this species has the official, current, Queensland Government conservation status of "near threatened" species.
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