Alsophila hermannii

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For Alsophila christii and Cyathea christii (Sodiro) Domin, see Lophosoria quadripinnata.

Alsophila hermannii
Scientific classification edit
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]
  • Cyathea christii Copel., not Cyathea christii (Sodiro) Domin[2]

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[]

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, 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, Plants of the World Online does not accept the transfer to Alsophila, accepting the name Cyathea christii Copel.[9]

References[]

  1. ^ Jump up to: 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 2021-08-01CS1 maint: date format (link)
  2. ^ Jump up to: a b "Cyathea christii Domin". The International Plant Names Index. Retrieved 2021-08-01.
  3. ^ Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 112. ISBN 978-0-88192-630-9.
  4. ^ "Cyathea christii Copel.". The International Plant Names Index. Retrieved 2021-08-01.
  5. ^ "Alsophila hermannii R.M.Tryon". The International Plant Names Index. Retrieved 2021-08-01.
  6. ^ Tryon, Rolla M. (1970). "The Classification of the Cyatheaceae". Contributions from the Gray Herbarium of Harvard University. 200: 34. Retrieved 2021-08-01.
  7. ^ 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 2021-08-01.CS1 maint: date format (link)
  8. ^ "Type of Alsophila christii Sodiro [family Lophosoriaceae]". JSTOR Global Plants. Retrieved 2021-08-01.
  9. ^ "Cyathea christii Copel.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2021-08-01.


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