Cyathea latebrosa

Cyathea latebrosa
Scientific classification
Kingdom:	Plantae
Division:	Pteridophyta
Class:	Pteridopsida
Order:	Cyatheales
Family:	Cyatheaceae
Genus:	Cyathea
Subgenus:	Cyathea
Section:	Alsophila
Species:	C. latebrosa
Binomial name
Cyathea latebrosa (Wallich ex W. J. Hooker) Copeland, 1909
Synonyms
Polypodium latebrosum Wallich, 1828 (non Polypodium latebrosum Salisbury, 1796; quae Dryopteris phegopteris) Alsophila latebrosa Wallich ex Presl, 1836 Alsophila latebrosa Wallich ex W. J. Hooker, 1844 Dichorexia latebrosa Presl, 1848 Hemitelia latebrosa Mettenius, 1856

Cyathea latebrosa is a common and widespread species of tree fern native to Indochina. Its natural range covers Cambodia and Thailand, and stretches from the Malay Peninsula to Indonesia, where it is present on the islands of Borneo and Sumatra. Plants reported from India and Sri Lanka have thinner indusia and may represent a separate, as-yet undescribed, species. C. latebrosa grows in a wide range of habitats, including forest, secondary forest, and plantations, from sea level up to an elevation of about 1500 m.

Description

The trunk of Cyathea latebrosa is erect and usually grows to a height of 3-4 m. Fronds may be bi- or tripinnate and are about 2 m long. They are lighter in colouration underneath and form a sparse, feathery crown. The stipe is reddish-brown, spiny, and bears some scales near the base. These scales are dark, glossy, and have fragile edges. Stipes may be retained in younger plants, forming a characteristic messy skirt around the trunk. Sori occur near the fertile pinnule midvein. They are protected by small, bilobed indusia that are scale-like in appearance.

C. latebrosa is a variable tree fern. Braggins and Large (2004) note that it forms part of a complex of species that is not fully understood.

C. latebrosa appears to be most closely related to Cyathea incisoserrata, from which it differs in pinnule morphology and in not having scales throughout the length of the stipe.

Cultivation

In cultivation, this species does best in warmer climates and is not tolerant of frost. Plants should be provided with a plentiful supply of moisture and grown in well-drained humus.

References

• Braggins, John E. & Large, Mark F. 2004. Tree Ferns. Timber Press, Inc., p. 151. ISBN 0-88192-630-2
• The International Plant Names Index: Cyathea latebrosa