Pinus devoniana
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Pinus devoniana (synonym Pinus michoacana) is a species of conifer in the family Pinaceae. 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 Template:Cvt.[1]
Pinus devoniana, which is locally called "pino blanco", "pino lacio" or "pino prieto", is a tree of medium size, which can grow Template:Cvt tall, with a dbh to Template:Cvt. It has curved foliage twigs and very long needles, typically from Template:Cvt, though Mirov cites needles up to Template:Cvt long,[2] 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, Template:Cvt long and Template:Cvt 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]
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Cone
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Male strobili of Pinus devoniana at Hackfalls Arboretum
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Bark
References
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- ↑ Farjon et al. 1997, p. 58, Farjon 2001, p. 175
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- ↑ Farjon et al. 1997, p. 58, Farjon and Styles 1997, p. 137
- ↑ Kent 1900, p. 345, Dallimore and Jackson 1954, p. 504 and Farjon 1984, p. 115 treat P. devoniana as a synonym of P. montezumae
- ↑ Farjon et al. Kew 1997, p. 58
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Literature and sources
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- 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
- 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