Pseudotsuga menziesii var. lindleyana

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Mexican Douglas-fir
Mexican Douglas fir (Pseudotsuga lindleyana) branch.jpg
Mexican Douglas-fir branch with cones
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Pseudotsuga
Species:
Variety:
P. m. var. lindleyana
Trinomial name
Pseudotsuga menziesii var. lindleyana
Synonyms
  • P. lindleyana
  • P. flahaultii
  • P. guinieri
  • P. macrolepis
  • P. menziesii var. oaxacana
  • P. rehderi
  • Tsuga 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]

Contents

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]

Related Research Articles

<i>Pseudotsuga</i> Genus of conifers in the family Pinaceae

Pseudotsuga is a genus of evergreen coniferous trees in the family Pinaceae. Common names for species in the genus include Douglas fir, Douglas-fir, Douglas tree, Oregon pine and Bigcone spruce. Pseudotsuga menziesii is widespread in western North America and is an important source of timber. The number of species has long been debated, but two in western North America and two to four in eastern Asia are commonly acknowledged.

<i>Pseudotsuga macrocarpa</i> Species of conifer

Pseudotsuga macrocarpa, commonly called the bigcone spruce or bigcone Douglas-fir, is an evergreen conifer native to the mountains of southern California. It is notable for having the largest cones in the genus Pseudotsuga, hence the name.

<span class="mw-page-title-main">Douglas fir</span> Species of tree

The Douglas fir is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three varieties: coast Douglas-fir, Rocky Mountain Douglas-fir and Mexican Douglas-fir.

<i>Pseudotsuga menziesii <span style="font-style:normal;">var.</span> glauca</i> Variety of plants

Pseudotsuga menziesii var. glauca, or Rocky Mountain Douglas-fir, is an evergreen conifer native to the interior mountainous regions of western North America, from central British Columbia and southwest Alberta in Canada southward through the United States to the far north of Mexico. The range is continuous in the northern Rocky Mountains south to eastern Washington, eastern Oregon, Idaho, western and south-central Montana and western Wyoming, but becomes discontinuous further south, confined to "sky islands" on the higher mountains in Utah, Colorado, Arizona and New Mexico, with only very isolated small populations in eastern Nevada, westernmost Texas, and northern Mexico. It occurs from 600 m altitude in the north of the range, up to 3,000 m, rarely 3,200 m, in the south. Further west towards the Pacific coast, it is replaced by the related coast Douglas-fir, and to the south, it is replaced by Mexican Douglas-fir in high mountains as far south as Oaxaca. Some botanists have grouped Mexican Douglas-fir with P. menziesii var. glauca, but genetic and morphological evidence suggest that Mexican populations should be considered a different variety.

<span class="mw-page-title-main">Mexican blind lizard</span> Species of lizard

The Mexican blind lizard is a species of legless lizard in the family Dibamidae, and the only species in the genus Anelytropsis. It is endemic to Mexico. They look like Amphisbaenia, but are in fact, only distantly related.

<i>Pinus arizonica</i> Species of conifer

Pinus arizonica, commonly known as the Arizona pine, is a medium-sized pine in northern Mexico, southeast Arizona, southwest New Mexico, and western Texas in the United States. It is a tree growing to 25–35 m tall, with a trunk diameter of up to 1.2 m. The needles are in bundles of 3, 4, or 5, with 5-needle fascicles being the most prevalent. This variability may be a sign of hybridization with the closely related ponderosa pine. The cones are single, paired, or in whorls of three, and 5–11 cm long.

<span class="mw-page-title-main">Sierra Madre Occidental pine–oak forests</span> Temperate broadleaf and mixed forests ecoregion of Mexico and the United States

The Sierra Madre Occidental pine–oak forests are a Temperate broadleaf and mixed forests ecoregion of the Sierra Madre Occidental range from the southwest USA region to the western part of Mexico. They are home to a large number of endemic plants and important habitat for wildlife.

<i>Abies vejarii</i> Species of conifer

Abies vejarii is a species of fir native to northeastern Mexico, in the states of Coahuila, Nuevo León, and Tamaulipas, where it grows at high altitudes in the Sierra Madre Oriental.

<i>Pinus douglasiana</i> Species of conifer

Pinus douglasiana is a species of evergreen conifer in the family Pinaceae. It is found only in Mexico.

<i>Pseudotsuga sinensis</i> Species of conifer

Pseudotsuga sinensis is a species of conifer in the family Pinaceae. It is a tree up to 50 metres tall. It is found in China and Taiwan as well as in northernmost parts of Vietnam.

<span class="mw-page-title-main">Alberta Mountain forests</span> Temperate coniferous forests ecoregion of Alberta and British Columbia, Canada

The Alberta Mountain forests are a temperate coniferous forests ecoregion of Western Canada, as defined by the World Wildlife Fund (WWF) categorization system.

<span class="mw-page-title-main">Wasatch and Uinta montane forests</span> Temperate coniferous forests ecoregion of the United States

The Wasatch and Uinta montane forest is a temperate coniferous forest ecoregion in the Wasatch Range and Uinta Mountains of the western Rocky Mountains system, in the Western United States.

<i>Pseudotsuga menziesii <span style="font-style:normal;">var.</span> menziesii</i> Variety of conifer

Pseudotsuga menziesii var. menziesii, commonly known as Coast Douglas-fir, Pacific Douglas-fir, Oregon pine, or Douglas spruce, is an evergreen conifer native to western North America from west-central British Columbia, Canada southward to Central California, United States. In Oregon and Washington its range is continuous from the Cascades crest west to the Pacific Coast Ranges and Pacific Ocean. In California, it is found in the Klamath and California Coast Ranges as far south as the Santa Lucia Mountains with a small stand as far south as the Purisima Hills, Santa Barbara County. In the Sierra Nevada it ranges as far south as the Yosemite region. It occurs from near sea level along the coast to 1,800 metres (5,900 ft) in the California Mountains. Further inland, coast Douglas-fir is replaced by Rocky Mountain or interior Douglas-fir. Interior Douglas-fir intergrades with coast Douglas-fir in the Cascades of northern Washington and southern British Columbia.

<i>Symphoricarpos oreophilus</i> Species of flowering plant

Symphoricarpos oreophilus is a North American species of flowering plant in the Caprifoliaceae, or honeysuckle family, known by the common name mountain snowberry. It has a wide distribution in western Canada, the United States, and northwestern Mexico. It is found in mountainous areas such as the Cascades, the Sierra Nevada, the Rockies, and the Sierra Madre Occidental from British Columbia to the Copper Canyon region of Chihuahua, from the coastal states as far inland as the Black Hills, the Oklahoma Panhandle, and trans-Pecos Texas.

<span class="mw-page-title-main">Red Creek Fir</span> Largest known Douglas fir in the world, in British Columbia, Canada

The Red Creek Fir is a large Douglas fir tree located in the San Juan Valley of Vancouver Island in British Columbia, Canada. By volume, it is the largest known Douglas fir tree on Earth.

<span class="mw-page-title-main">Laricoideae</span> Subfamily of plants

The Laricoideae are a subfamily of the Pinaceae, a Pinophyta division family. They take their name from the genus Larix (larches), which contains inside most of the species of the group and is one of only two deciduous genera of the pines complex. Ecologically important trees, the Laricoideae form pure or mixed forest associations often dominant in the ecosystems in which they are present, thanks also to their biological adaptations to natural disturbances, to reproductive strategies put in place and high average longevity of the individuals. Currently are assigned to this subfamily three genera and its members can be found only in Northern Hemisphere. The various species live for the most part in temperate or cold climates and are the more northerly conifers; some constitute an important source of timber and non-timber forest products.

La Michilía Biosphere Reserve is a protected area in northwestern Mexico. It is located in the Sierra Madre Occidental range in the south of the state of Durango.

Papigochic Flora and Fauna Protection Area is a protected area in Chihuahua state of Mexico. It covers an area of 2227.64 km2 in the eastern Sierra Madre Occidental. To the northwest it adjoins Tutuaca Flora and Fauna Protection Area.

The Cuenca Alimentadora del Distrito Nacional de Riego 026 Bajo Río San Juan is a protected area in northeastern Mexico. It extends over part of the northern Sierra Madre Occidental, near the cities of Monterrey and Saltillo.

<i>Quercus saltillensis</i> Species of oak tree

Quercus saltillensis is a species of oak. It is native to northeastern Mexico. It is placed in Quercus section Lobatae.

References

  1. 1 2 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". New Phytologist. 189 (4): 1185–1199. doi: 10.1111/j.1469-8137.2010.03559.x . PMID   21118265.
  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. S2CID   23230135.
  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.

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