Cystodium (plant)
| Cystodium sorbifolium | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Polypodiopsida/Pteridopsida (disputed) |
| Order: | Polypodiales |
| Suborder: | Lindsaeineae |
| Family: |
Cystodiaceae J.R.Croft 1986 |
| Genus: |
Cystodium J.Sm. 1841 |
| Species: | C. sorbifolium |
| Binomial name | |
|
Cystodium sorbifolium (Sm.) J.Sm. |
|
| Synonyms | |
|
Cystodiopteris Rauschert 1982 |
|
Cystodiopteris Rauschert 1982
Cystodium is a fern genus in its own Cystodiaceae family. It contains a single species: Cystodium sorbifolium (Sm.) J.Sm. 1841. Because it looks like a small tree fern, it had previously been placed in the tree fern family Dicksoniaceae. Subsequent analysis had moved it to the Lindsaeaceae, but the most recent phylogenetic studies have placed it in its own separate family, Cystodiaceae, with a sister relationship to the current Lindsaeaceae.
Cystodium is distributed through lowland rainforests from Borneo to New Guinea and nearby islands, as well as the Solomon Islands.
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