Pinus devoniana

Pinus devoniana
Scientific classification
Kingdom:Plantae
Division:Pinophyta
Class:Pinopsida
Order:Pinales
Family:Pinaceae
Genus:Pinus
Subgenus:P. subg. Pinus
Section:P. sect. Trifoliae
Subsection:P. subsect. Ponderosae
Species: P. devoniana
Binomial name
Pinus devoniana
Lindl. (Lindley 1839)
Natural range of Pinus devoniana
Synonyms

Pinus michoacana

Pinus devoniana is a species of conifer in the Pinaceae family. It is found in more than 15 states of Mexico - from S. Sinaloa to Chiapas - and Guatemala in montane, relatively open pine or pine-oak forests at altitudes from 900 to 2500 m.[2]

Pinus devoniana, which is locally called “pino blanco”, “pino lacio” or “pino prieto”, is a tree of medium size, which can grow 20–30 m. tall, with a dbh to 80–100 cm. It has curved foliage twigs and very long needles, from 25–40 cm. in fascicles of 5. The cones, which grow solitary or in whorls of 2-4 on thick, short peduncles, leaving a few scales on the branch when falling, are usually large and often curved, 15–35 cm. long and 8–15 cm. wide when open.[3]

Pinus devoniana is closely related to Pinus montezumae (the Montezuma pine).[4] These species are sometimes difficult to distinguish, while hybrids probably occur. The cones are especially variable. Overall, both foliage and cones are larger in Pinus devoniana.[5]

References

  1. ↑ Farjon, A. (2013). "Pinus devoniana". The IUCN Red List of Threatened Species. IUCN. 2013: e.T42356A2974898. doi:10.2305/IUCN.UK.2013-1.RLTS.T42356A2974898.en. Retrieved 13 December 2017.
  2. ↑ Farjon et al. 1997, p. 58, Farjon 2001, p. 175
  3. ↑ Farjon et al. 1997, p. 58, Farjon and Styles 1997, p. 137
  4. ↑ Kent 1900, p. 345, Dallimore and Jackson 1954, p. 504 and Farjon 1984, p. 115 treat P. devoniana as a synonym of P. montezumae
  5. ↑ Farjon et al. Kew 1997, p. 58

Literature and sources

  • Dallimore, W. and Bruce Jackson – A handbook of Coniferae. Edward Arnold Publishers, London 1923, 2nd ed. 1931, 3rd ed. 1948, reprinted 1954
  • Farjon, Aljos – Pines; drawings and descriptions of the genus Pinus. Brill/Backhuys, Leiden 1984
  • Farjon, Aljos, Jorge A. Perez de la Rosa & Brian T. Styles (ill. Rosemary Wise) – A field guide to the Pines of Mexico and Central America. Royal Botanic Gardens, Kew, in association with the Oxford Forestry Institute, Oxford 1997
  • Farjon, Aljos and Brian T. Styles – Pinus (Pinaceae); monograph 75 of Flora Neotropica. New York Botanical Gardens, New York 1997
  • Farjon, Aljos – World checklist and bibliography of Conifers. Second edition. Royal Botanic Gardens, Kew 2001
  • IUCN - Conifer Specialist Group 1998: Pinus devoniana in 2006 IUCN Red List of Threatened Species. Conservation status downloaded on 10 July 2007.
  • Kent, Adolphus H. – Veitch's Manual of the Coniferae. James Veitch & Sons, Chelsea 1900.
  • Lanyon, Joyce W. - A card key to Pinus based on needle anatomy. Min. for Conservation, Sydney, New South Wales, Australia 1966
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