Alsophila hermannii
For Alsophila christii and Cyathea christii (Sodiro) Domin, see Lophosoria quadripinnata.
| Alsophila hermannii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Alsophila |
| Species: | A. hermannii
|
| Binomial name | |
| Alsophila hermannii R.M.Tryon[1]
| |
| Synonyms[1] | |
| |
Alsophila hermannii, synonym Cyathea christii Copel.,[1] is a species of tree fern endemic to Mindanao in the Philippines, where it grows in forest at an altitude of 900–1800 m. The trunk is erect and may be 5 m tall or more. Fronds are bi- or tripinnate and 2–3 m long. The stipe is covered with some warts and narrow, brown scales. Sori occur near the midvein of fertile pinnules and are covered by thin, fragile indusia.[3]
Taxonomy[edit]
The species was first described by Edwin Copeland in 1906 as Cyathea christii.[4] In 1970, Rolla Tryon transferred it to the genus Alsophila, but as the name Alsophila christii had already been used by Luis Sodiro in 1908, Tryon published the replacement name Alsophila hermannii.[5][6] As of August 2021[update], the transfer is accepted by World Ferns.[1]
Alsophila christii Sodiro is now regarded as a synonym of Lophosoria quadripinnata.[7] Cyathea christii (Sodiro) Domin[8] is a synonym of Alsophila christii,[2] so also of Lophosoria quadripinnata and not of this species.
As of August 2021[update], Plants of the World Online does not accept the transfer to Alsophila, accepting the name Cyathea christii Copel.[9]
References[edit]
- ^ a b c d Hassler, Michael (2004–2021), "Genus Alsophila R.Br.", World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.3, retrieved 1 August 2021
- ^ a b "Cyathea christii Domin". The International Plant Names Index. Retrieved 1 August 2021.
- ^ Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 112. ISBN 978-0-88192-630-9.
- ^ "Cyathea christii Copel.". The International Plant Names Index. Retrieved 1 August 2021.
- ^ "Alsophila hermannii R.M.Tryon". The International Plant Names Index. Retrieved 1 August 2021.
- ^ Tryon, Rolla M. (1970). "The Classification of the Cyatheaceae". Contributions from the Gray Herbarium of Harvard University. 200: 34. Retrieved 1 August 2021.
- ^ Hassler, Michael (2004–2021). "Genus Lophosoria C.Presl". World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.3. Retrieved 1 August 2021.
- ^ "Type of Alsophila christii Sodiro [family Lophosoriaceae]". JSTOR Global Plants. Retrieved 1 August 2021.
- ^ "Cyathea christii Copel.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 1 August 2021.
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