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Cathaya argyrophylla

Cathaya argyrophylla
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Product Information
Specification

Scientific name: Cathaya argyrophylla  W.Y.Chun & Kuang  1962

Synonyms:Cathaya nanchuanensis Chun & Kuang, Pseudotsuga argyrophylla (Chun & Kuang) Greguss, Tsuga argyrophylla (Chun & Kuang) de Laub. & Silba

Common names:Cathaya, Yinshan (Chinese)

 

Description

Tree to 24 m tall, with trunk to 40(-85) cm in diameter. Bark gray, irregularly and narrowly fissured. New shoots yellowish brown, ribbed with attached leaf bases, densely short hairy, the hairs wearing off by the second year. Buds light yellowish brown, 6-8 mm long. Needles sticking straight out all around the branch, 4-6 cm long and 2.5-3 mm wide, up to 3 cm long on short shoots, dark green above, with two white, stomatal bands beneath, each band with 11-17 lines of stomates, the tip rounded to bluntly pointed, the edges hairy at first, curled slightly under. Seed cones green before maturity, ripening dark brown, 3-5 cm long, 1.5-2 cm wide, with 13-16 seed scaled, these circular to oval, 15-25 mm long and 10-25 mm wide. Seed body 5-6 mm long, 3-4 mm thick, dark green with lighter mottling, the wing 5-9 mm longer.

South-central China, from southeastern Sichuan to eastern Hunan, south to central Guangxi. Scattered or forming small groves in mixed forests on rocky ridges and cliffs; 900-1,900 m.

 

Conservation Status

Red List Category & Criteria: Vulnerable

(This species has a small global population, and the number of mature individuals is estimated to number not much more than 500 mature individuals; certainly less than 1,000 mature individuals. It is not clear if this species has been harvested much in the past, it appears to be a naturally scarce species. Much of the population is in protected areas and it enjoys the highest level of protection in China plus there is a general logging ban which has recently been imposed by the Chinese Government. Hence, although there is no evidence for any decline this species is listed as Vulnerable based simply on the small population size)

 

References

Farjon, A. (2010). A Handbook of the World's Conifers. Koninklijke Brill, Leiden.

Eckenwalder, J.E. (2009) Conifers of the World: The Complete Reference. Timber Press, Portland.

IUCN Red List of Threatened Species, International Union for Conservation of Nature and Natural Resources. Cambridge, UK /Gland, Switzerland

 

Copyright © Aljos Farjon, James E. Eckenwalder, IUCN, Conifers Garden. All rights reserved.

Product CodeCATTWSQB54


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