Gymnosphaera khasyana

Gymnosphaera khasyana
Scientific 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)
Synonyms
	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 edit

^ ^a ^b Gymnosphaera khasyana (T.Moore ex Kuhn) Ching. Plants of the World Online. Retrieved 27 December 2023.
^ 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.
^ ^a ^b Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 150. ISBN 978-0-88192-630-9.

[powo-1] Gymnosphaera khasyana (T.Moore ex Kuhn) Ching. Plants of the World Online. Retrieved 27 December 2023.

[CFLW-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.

[LargBrag04-3] Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 150. ISBN 978-0-88192-630-9.

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