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Tree, approx. 10 m tall, on Cerro Potosí (at 24.893°N, 100.218°W) [C.J. Earle, 2007.02.19].

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Tree, 5 m tall [C.J. Earle, 2007.02.18].

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Sapling, 1.5 m tall [C.J. Earle, 2007.02.18].

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Seedling, 15 cm tall [C.J. Earle, 2007.02.18].

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Foliar units; needles approx. 20 cm long [C.J. Earle, 2007.02.18].

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Fascicles [C.J. Earle, 2007.02.18].

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Mature cones in situ [C.J. Earle, 2007.02.18].

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Mature cone [C.J. Earle, 2007.02.18].

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Bark on 30 cm and 15 cm diameter trunks [C.J. Earle, 2007.02.18].

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Parkland stand at elev. 1774 m, Nuevo León (24.708°N, 100.034°W) [C.J. Earle, 2007.02.19].

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Stand developed on gypsum amid Pinus cembroides developed on carbonate soils. Stand in the southern Sierra Peña Nevada at about 23.8°N, 99.9°W [C.J. Earle, 2007.02.18].

 

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Conservation status

Pinus arizonica var. stormiae

Martínez 1945

Common names

Pino real, pino blanco [Spanish] (Perry 1991).

Taxonomic notes

Syn: Pinus ponderosa D. Douglas ex P. Lawson var. stormiae (Martínez) Silba 1990 (Farjon and Styles 1997).

Description

As for Pinus arizonica, except that the needles, 3-4(-5) per fascicle, are quite long (14-25 cm) and thick (1.4-1.8 mm), with 8-12 lines of stomata on the abaxial (outer) side.

Distribution and Ecology

Mexico: Coahuila, Nuevo León, southwest Tamaulipas (Miquihuana) and parts of San Luis Potosí (Perry 1991); probably most abundant in southern Nuevo León. Occurs at 1,500-3,000 m elevation, commonly with Quercus, Juniperus, or other pines, particularly P. cembroides and P. pseudostrobus (Farjon and Styles 1997). In Nuevo León I observed that on gypsum-derived soils in was the only tree (photo at left), whereas adjacent carbonate substrates were dominated by P. cembroides but supported a variety of conifers, including P. arizonica var. stormiae. See Pinus arizonica for an interactive distribution map.

Big tree

Oldest

Dendrochronology

Ethnobotany

Observations

Have seen it in the Sierra Peña Nevada of southern Nuevo León, and in extensive stands on the plains south of and at mid-elevations on Cerro Potosí, also in Nuevo León. Within its range it is a common and conspicuous pine.

Remarks

This species is one of many principal hosts for the dwarf mistletoe Arceuthobium vaginatum subsp. vaginatum, and is also a principal host for A. vaginatum subsp. cryptopodum (Hawksworth and Wiens 1996).

Citations

See also

Last Modified 2014-03-16