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Pinus fenzeliana

Pinus fenzeliana
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Product Information
Specification

Scientific name: Pinus fenzeliana  Handel-Mazzetti  1931

Synonyms:Pinus armandii var. fenzeliana (Hand.-Mazz.) Eckenw., Pinus kwangtungensis Chun ex Tsiang, Pinus parviflora var. fenzeliana (Hand.-Mazz.) C.L.Wu, Pinus parviflora var. kwangtungensis (Chun ex Tsiang) Eckenw., Pinus wangii subsp. kwangtungensis (Chun ex Tsiang) Businský, Pinus wangii var. kwangtungensis (Chun ex Tsiang) Silba, Pinus wangii subsp. varifolia (Nan Li & Y.C.Zhong) Businský

Common names: Hainan white pine, Fenzel's pine, Hai nan wu zhen song (Chinese), Hua nan wu zhen song (Chinese)

 

Description

Tree to 25(-50) m tall, with trunk to 1(-2) m in diameter. Bark dark grayish brown, flaking and ultimately breaking up into small, square blocks at the base of large trees. Crown cylindrical, rather open, with widely spaced tiers of long, thin, horizontal branches bearing foliage onlynear their ends. Twigs grayish green to light grayish brown, hairless to transiently hairy. Buds about 7-10 mm long, slightly resinous. Needles in bundles of five, each needle 5-18 cm long, thin, flexible, and often drooping, with a kink near the base, lasting 2-3 years, dark green. Individual needles without stomates on the outer face, whitish green with wax over the stomates on the inner faces, with an undivided midvein, two small resin canals beneath the outer face either touching the epidermis or completely within the leaf tissue, usually with a third resin canal inside the leaf tissue near the corner between the two inner faces, and rarely with up to four additional resin canals scattered within the leaf tissue beneath any or all of the faces. Pollen cones 15-30 mm long, pale green with a reddish blush. Seed cones 6-14 cm long, egg- to elongate-shaped, green or purple and sometimes a little waxy before maturity, ripening yellowish brown or reddish brown, gaping and releasing the seeds at maturity, on a stalk (1-)2-4 cm long. Seed scales angularly egg-shaped, thick and a little fleshy, particularly around the seeds, the diamond-shaped or triangular tip tapering from the thickest point to a diamond-shaped or triangular umbo that is straight to curled back. Seed body 8-15 mm long, chestnut or pale brown, wingless or with a short, firmly attached wing 1-4(-7) mm long.

Vietnam and China: SW Anhui, Guangxi, C and N Guizhou, Hainan, SE Henan, E Hubei, and SE Sichuan; 900-1600 m.

 

Conservation Status

Red List Category & Criteria: Near Threatened

(Pinus fenzeliana has a broad distribution across southern China and northern Vietnam. Declines have been reported in outlying subpopulations in Hainan and across its range in northern Vietnam. The overall extent of this decline is unknown but may be approaching 30%. On this basis it is assessed as Near Threatened (almost qualifies as Vulnerable A2c)

 

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 CodePINNTDKX52


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