Alsophila kermadecensis
Alsophila kermadecensis, synonym Cyathea kermadecensis,[1] is a species of tree fern endemic to Raoul Island in the Kermadec Islands, where it is locally common in damp, and sometimes drier, forest and scrub. The trunk of this plant is erect, slender, and up to 20 m tall. It is often covered with scars of old stipe-bases. Fronds are tripinnate and up to 4 m in length. The rachis and stipe are both brown in colouration and bear basal scales that are brown, glossy, and often twisted. Sori are borne on either side of the pinnule midvein. They are covered by hood-like indusia.[2]
| Alsophila kermadecensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Alsophila |
| Species: | A. kermadecensis |
| Binomial name | |
| Alsophila kermadecensis (W.R.B.Oliv.) R.M.Tryon[1] | |
| Synonyms[1] | |
| |
Large and Braggins (2004) note that A. kermadecensis is similar to Alsophila cunninghamii.[2]
A. kermadecensis should be cultivated in good humus and provided shade as well as shelter from the wind. Nevertheless, it is a hardy species that will survive full sun and slight frost.[2]
The specific epithet kermadecensis refers to the Kermadec Islands. A. kermadecensis is one of two tree fern species endemic to the islands, the other being Alsophila milnei.[2]
References
- Hassler, Michael & Schmitt, Bernd (June 2019). "Alsophila kermadecensis". Checklist of Ferns and Lycophytes of the World. Retrieved 2019-08-25.
- Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 150. ISBN 978-0-88192-630-9.