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Pinus bhutanica

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA CONIFEROPSIDA CONIFERALES PINACEAE

Scientific Name: Pinus bhutanica
Species Authority: A.J.C.Grierson, D.G.Long & C.N.Page
Taxonomic Notes: This species was formerly not recognized as distinct from Pinus wallichiana and herbarium specimens belonging to P. bhutanica may remain unrecognized as the distinction is more in the habit (strongly pendulous leaves) and young shoots (not always collected). Some botanists regard it as a subspecies or variety of Pinus wallichiana. The identification of a seedling in China (Tibet) is therefore dubious, as seedling characters were not originally described from this species and no comparative study growing both species has been published.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2007
Assessor/s: Bachman, S. (RBG Kew), Farjon, A. (RBG Kew), Gardner, M. (RBG Edinburgh), Thomas, P. (RBG Edinburgh), Luscombe, D. (Forestry Comm. Bedgebury) & Reynolds, C. (Forestry Comm. Bedgebury)
Reviewer/s: Farjon, A. & Gardner, M. (Conifer Red List Authority)
Contributor/s:
Justification:
The known range of this species does not meet the threshold for a threatened category. It is also thought to occur more widely eastwards, but botanical collecting has been virtually absent in this region since this species was first described in 1980. It is reported to be harvested as part of a mixed timber resource, but there is no evidence of decline and new localities have been found. New collections have recently been made in China (Yunnan, Gaoligong Mts.) and an assessment of the species in this area is required.
History:
1998 – Data Deficient

Geographic Range [top]

Range Description: Bhutan, India, China: Yunnan (Gaoligong Mts.), Xizang (Tibet) (from a single seedling). Its distribution is still imperfectly known.
Countries:
Native:
Bhutan; China (Tibet [or Xizang]); India (Arunachal Pradesh)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: From the data on herbarium labels this species appears to occur in a variety of forest types, including mixed pine forest, mixed oak-pine forest, mixed broadleaved forest, secondary forests of these types, including thinned (managed?) forest. The elevation (from GIS) is 729 to 2,613 m, from herbarium specimens 1,676 to 2,750 m (the latter probably more reliable in this case).
Systems: Terrestrial

Threats [top]

Major Threat(s): Although timber harvesting affects this species, it appears to be adaptable judging from its habitat preferences and is at present not thought to be in decline.

Conservation Actions [top]

Conservation Actions: This species is reported to occur in the Khaling and Bumdeling Wildlife Sanctuaries (Bhutan).

Bibliography [top]

Farjon, A. 1998. World Checklist and Bibliograpy of Conifers. 1st edition. The Royal Botanic Gardens, Kew.

Farjon, A. 2001. World Checklist and Bibliograpy of Conifers. 2nd edition. The Royal Botanic Gardens, Kew.

IUCN. 2007. 2007 IUCN Red List of Threatened Species. Available at: www.iucnredlist.org. (Accessed: 12th September 2007).
Citation: Bachman, S. (RBG Kew), Farjon, A. (RBG Kew), Gardner, M. (RBG Edinburgh), Thomas, P. (RBG Edinburgh), Luscombe, D. (Forestry Comm. Bedgebury) & Reynolds, C. (Forestry Comm. Bedgebury) 2007. Pinus bhutanica. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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