Asplenium surrogatum
| Asplenium surrogatum | |
|---|---|
| File:Asplenium surrogatum RBG Sydney.jpg | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Aspleniaceae |
| Genus: | Asplenium |
| Species: | A. surrogatum
|
| Binomial name | |
| Asplenium surrogatum | |
| Synonyms[1] | |
| |
Asplenium surrogatum is a species of fern in the family Aspleniaceae.[1][2] It is endemic to Australia's subtropical Lord Howe Island in the Tasman Sea. It grows both terrestrially and as an epiphyte. It occurs in forest at high elevations on the island's mountains.[3]
Taxonomy
[edit | edit source]A global phylogeny of Asplenium published in 2020 divided the genus into eleven clades,[4] which were given informal names pending further taxonomic study. A. surrogatum belongs to the "Neottopteris clade",[5] members of which generally have somewhat leathery leaf tissue. It forms a clade with A. milnei and A. pteridoides, two other Lord Howe Island endemics, suggesting that all three species diverged after a single colonization of the island by their ancestor.[6] This clade is sister to a large group of Pacific Ocean spleenworts.[5]
References
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- ^ Xu et al. 2020, p. 27.
- ^ a b Xu et al. 2020, p. 31.
- ^ Xu et al. 2020, p. 41.
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