Range of Pinus douglasiana (1). Adapted from a map by  www.expediamaps.com |
Pinus douglasiana
Martínez 1943
Common NamesTaxonomic notesType: Nayarit, Cerro Juanacata, July 1940, M. Martínez 3429 (holotype, MEXU) (1).DescriptionRangeMexico: Mainly Jalisco, Michoacán, México & N Morelos, but extending N into Nayarit and the Sierra Medre Occidental crest between Sinaloa and Durango, and extending S locally into Guerrero & Oaxaca. Found at (1100-)1400-2500(-2700) m elevation in mixed pine and pine-oak forests. At the highest and wettest sites it is associated with Abies sp., Picea sp. (in Durango) or Cupressus lusitanica . More commonly, it is found with Pinus pseudostrobus, P. herrerae, P. leiophylla, P. lawsonii, P. ayacahuite in the S part of its range, P. oocarpa at low elevations, and P. devoniana in drier sites (1). See also (2).Big TreeOldestDendrochronologyEthnobotanyAn important timber tree within its range, typically logged with its congeners in mixed stands (1).ObservationsRemarksCitations(1) Farjon & Styles 1997 .(2) Robert S. Thompson, Katherine H. Anderson and Patrick J. Bartlein. 1999. Atlas of Relations Between Climatic Parameters and Distributions of Important Trees and Shrubs in North America. U.S. Geological Survey Professional Paper 1650 A&B. URL= http://greenwood.cr.usgs.gov/pub/ppapers/p1650-a/pages/conifers.html, accessed 22-Jan-2000. |
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