Alsophila doctersii
Alsophila doctersii, synonym Cyathea doctersii,[1] is a species of tree fern endemic to Sumatra, where it grows in forest at an altitude of approximately 150 m. The trunk is erect and 2–3 m tall. Fronds are bi- or tripinnate and 2–3 m long. The stipe is covered with scattered flat, brown scales and some hairs. Sori occur near the fertile pinnule midvein and are covered by thin, brown indusia that are scale-like in appearance.[2]
| Alsophila doctersii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Alsophila |
| Species: | A. doctersii |
| Binomial name | |
| Alsophila doctersii (Alderw.) R.M.Tryon[1] | |
| Synonyms[1] | |
| |
A. doctersii appears to be most closely related to Alsophila javanica. Large and Braggins (2004) note that it may in fact be of hybrid origin between A. javanica and a member of the Alsophila latebrosa complex.[2]
The specific epithet doctersii commemorates botanist Willem Marius Docters van Leeuwen (1880-1960), who collected numerous plant species in Asia.[2]
References
- Hassler, Michael & Schmitt, Bernd (June 2019). "Alsophila doctersii". Checklist of Ferns and Lycophytes of the World. Vol. 8. Archived from the original on 2017-09-02. Retrieved 2019-09-14.
- Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 126. ISBN 978-0-88192-630-9.