Gymnosphaera khasyana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Gymnosphaera
Species:
G. khasyana
Binomial name
Gymnosphaera khasyana
(T.Moore ex Kuhn) Ching (1984)[1]
Synonyms[1]
  • Alsophila khasyana T.Moore ex Kuhn (1869)
  • Alsophila latebrosa var. ornata (J.Scott ex Bedd.) Bedd. (1909)
  • Alsophila oldhamii Bedd. (1870)
  • Alsophila ornata J.Scott ex Bedd. (1870)
  • Alsophila ornata var. sikkimensis (C.B.Clarke & Baker) Bedd. (1893)
  • Alsophila pingbianica Y.K.Yang, Y.M.He & J.K.Wu (1999)
  • Alsophila scottiana Baker (1872)
  • Alsophila sikkimensis C.B.Clarke & Baker (1888)
  • Cyathea khasyana (Moore ex Kuhn) Domin (1929)
  • Cyathea oldhamii (Bedd.) Domin (1930)
  • Cyathea ornata (J.Scott ex Bedd.) Copel. (1909)
  • Cyathea sikkimensis (C.B.Clarke & Baker) Cretz. (1941)

Gymnosphaera khasyana, synonyms Alsophila khasyana and Cyathea khasyana,[2] is a species of tree fern. Its natural distribution extends from the Himalayas and eastern India to Myanmar and south-central China, although it is absent from Sri Lanka. G. khasyana grows in forest at an elevation of 1400–1700 m. The trunk of this plant is erect and 5–7 m tall. Fronds may be bi- or tripinnate and 2–3 m in length. G. khasyana has a long, dark stipe that is covered in numerous scales. These scales are dark and have broad, pale, fringed edges. Sori are borne near the midvein of fertile pinnules and lack indusia.[3]

The specific epithet khasyana refers to the Khasi Hills of India.[3]

References

  1. 1 2 Gymnosphaera khasyana (T.Moore ex Kuhn) Ching. Plants of the World Online. Retrieved 27 December 2023.
  2. ↑ Hassler, Michael & Schmitt, Bernd (June 2019). "Alsophila khasyana". Checklist of Ferns and Lycophytes of the World. Vol. 8. Archived from the original on 2017-09-02. Retrieved 2019-08-25.
  3. 1 2 Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 150. ISBN 978-0-88192-630-9.
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