Tetraplasandra
| Tetraplasandra | |
|---|---|
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ʻOhe mauka (Tetraplasandra oahuensis) |
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Apiales |
| Family: | Araliaceae |
| Subfamily: | Aralioideae |
| Genus: |
Tetraplasandra Asa Gray |
| Species | |
| Synonyms | |
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Tetraplasandra is an obsolete genus of flowering plants in the ivy family, Araliaceae. They are small to medium trees, (rarely shrubs or large trees) of mesic to wet forests.
Some authors have recognized as many as 19 species in Tetraplasandra, while others have recognized as few as six. In 2007, the authors of a scientific paper recommended that the genus be divided into nine species. In 2010, all of these nine species were included in ''Polyscias'' subgenus Tetraplasandra, a subgenus of 21 species in the large genus Polyscias, which will comprise about 250 species, when about 90 undescribed species are published.
The range of variation in Tetraplasandra is unusually large for a genus in Araliaceae Most of the species were originally described in other genera which were later merged with Tetraplasandra.
The type species for the genus is T. hawaiensis.
As defined by in 1970, Tetraplasandra is endemic to Hawaii and occurs on six of the eight main islands. Niʻihau and Kahoʻolawe are low-lying and dry; consequently, they do not support Tetraplasandra. T. oahuensis, T. kavaiensis, and T. hawaiensis are found on six, five, and four of the islands, respectively. The other species are single-island endemics.
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Wikipedia