Biology:Sphaeropteris elmeri

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Short description: Species of fern

Sphaeropteris elmeri
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Sphaeropteris
Species:
S. elmeri
Binomial name
Sphaeropteris elmeri
(Copel.) R.M.Tryon[1]
Synonyms[2]
  • Alsophila christii Alderw.
  • Christ Copel.
  • Copel. Cyathea dimorphotricha
  • Alsophila fenicis Copel.
  • Alsophila dimorphotricha Posth.
  • Domin Cyathea elmeri
  • Alsophila latebrosa var. major (Copel.) Copel.
  • Alsophila comosa (Copel.) Alderw.
  • Christ Alsophila subcomosa
  • Alsophila elmeri C. Chr.
  • Cyathea subcomosa Cyathea argyrolepis

Sphaeropteris elmeri, synonym Cyathea elmeri,[2] is a species of tree fern native to the Philippines , Talaud Islands, and northern Sulawesi, where it grows in forest at an altitude of 500–1400 m. The trunk of this plant is erect and 5–10 m tall. Fronds may be bi- or tripinnate and up to 2 m or more in length. The lower surface of the rachis is distinctively pale and warty. The stipe is covered with scales and has warts towards the base. The scales are large, tapering, thin, and medium brown in colouration. Sori are borne near the fertile pinnule midvein. Indusia are absent.[3]

The specific epithet elmeri commemorates pteridologist Adolph Daniel Edward Elmer (1870-1942).[3]

References

  1. "Sphaeropteris elmeri (Copel.) R.M.Tryon". Plants of the World Online. Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:17531940-1. 
  2. 2.0 2.1 Hassler, Michael; Schmitt, Bernd (June 2019), "Sphaeropteris elmeri", Checklist of Ferns and Lycophytes of the World, 8, https://worldplants.webarchiv.kit.edu/ferns/, retrieved 2019-08-23 
  3. 3.0 3.1 Large, Mark F.; Braggins, John E. (2004), Tree Ferns, Timber Press, p. 128, ISBN 978-0-88192-630-9, https://archive.org/details/treeferns00mark/page/128 

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