Pseudotsuga menziesii var. lindleyana

Pseudotsuga menziesii var. lindleyana, commonly known as the Mexican Douglas-fir, is a conifer in the genus Pseudotsuga that is endemic to Mexico.[1] DNA sequence[2] and morphological[3] evidence suggests it is most closely related to Rocky Mountain Douglas-fir (P. menziesii var. glauca) and might best be treated as an additional variety within P. menziesii.[1]

Mexican Douglas-fir
Mexican Douglas-fir branch with cones
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Pseudotsuga
Species:
P. menziesii
Variety:
P. m. var. lindleyana
Trinomial name
Pseudotsuga menziesii var. lindleyana
Synonyms
  • P. flahaultii
  • P. guinieri
  • P. macrolepis
  • P. menziesii var. oaxacana
  • P. rehderi
  • Tsuga lindleyana

Distribution

Pseudotsuga menziesii var. lindleyana is native to the Sierra Madre Occidental, Sierra Madre Oriental, and scattered mountains as far south as Oaxaca. The Mexican Government lists Mexican Douglas-fir as "subject to special protection"[4] because its populations are small, isolated and show signs of low fertility and recruitment due to inbreeding depression.[5][6]

References
  1. Earle, C.J. "The Gymnosperm Database: Pseudotsuga lindleyana". Retrieved 9 January 2018.
  2. Gugger, Paul F.; González-Rodríguez, Antonio; Rodríguez-Correa, Hernando; Sugita, Shinya; Cavender-Bares, Jeannine (2011). "Southward Pleistocene migration of Douglas-fir into Mexico: phylogeography, ecological niche modeling, and conservation of 'rear edge' populations" (PDF). New Phytologist. 189 (4): 1185–1199. doi:10.1111/j.1469-8137.2010.03559.x. PMID 21118265. Archived from the original (PDF) on 2015-02-20.
  3. Reyes-Hernández, VJ; Vargas-Hernández JJ; López-Upton J; Vaquera-Huerta H (2006). "Phenotypic similarity among Mexican populations of Pseudotsuga Carr" (PDF). Agrociencia. 40 (4): 545–556.
  4. Norma Oficial Mexicana NOM-059-SEMARNAT-2010, Protección ambiental-Especies nativas de México de flora y fauna silvestres-Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio-Lista de especies en riesgo (PDF). Mexico City: Secretaría de Medio Ambiente y Recursos Naturales. 2010.
  5. Mápula-Larreta, M.; López-Upton, J.; Vargas-Hernández, J. J.; Hernández-Livera, A. (2007). "Reproductive indicators in natural populations of Douglas-fir in Mexico". Biodiversity and Conservation. 16 (3): 727–742. doi:10.1007/s10531-005-5821-y.
  6. Velasco-García MV, López-Upton J, Angeles-Pérez G, Vargas-Hernández JJ, Guerra-de la Cruz V (2007). "Pseudotsuga menziesii seed dispersion in populations of central Mexico" (PDF). Agrociencia. 41 (1): 121–131.

Data related to Pseudotsuga menziesii var. lindleyana at Wikispecies


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