Gymnosphaera commutata
Gymnosphaera commutata is a Malesian species of tree fern found in wet and swampy forests.
| Gymnosphaera commutata | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Gymnosphaera |
| Species: | G. commutata |
| Binomial name | |
| Gymnosphaera commutata (Mett.) S.Y.Dong[1] | |
| Synonyms[1] | |
| |
Description
The trunk is erect and rarely taller than 3 m. Fronds are bipinnate and 1–2 m long. Characteristically of this species, the lowest pair of pinnae are usually reduced and occur towards the base of the stipe. The stipe itself is dark and bears dark, glossy basal scales with thin, fragile edges. Fertile pinnules are notably smaller than sterile ones. Sori occur near the fertile pinnule midvein and lack indusia.[2]
Distribution and habitat
Gymnosphaera commutata is native to the Malay Peninsula, central and southern Sumatra and Borneo, where it grows in acidic peaty or sandy soils in wet forest, as well as swamp forest, from sea level to an altitude of 1,500 metres (4,900 ft).
References
- Hassler, Michael (19 January 2023). "Gymnosphaera commutata". Checklist of Ferns and Lycophytes of the World. 14.1. Retrieved January 21, 2023.
- Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 251. ISBN 978-0-88192-630-9.
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