Difference between revisions of "Pinus aristata"
in Parry & Engelmann,Amer. J. Sci. Arts ser. 2, 34: 331. 1862.
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|common_names=Colorado bristlecone pine | |common_names=Colorado bristlecone pine | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication title=in Parry & Engelmann,Amer. J. Sci. Arts | |publication title=in Parry & Engelmann,Amer. J. Sci. Arts | ||
|publication year=1862 | |publication year=1862 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_619.xml |
|genus=Pinus | |genus=Pinus | ||
|species=Pinus aristata | |species=Pinus aristata | ||
Revision as of 21:14, 27 May 2020
Trees to 15m; trunk to 1m diam., strongly tapering, twisted; crown rounded, flattened (sheared), or irregular. Bark gray to red-brown, shallowly fissured, with long, flat, irregular ridges. Branches contorted; twigs pale red-brown, aging gray, puberulent, young branches resembling long bottlebrushes because of persistent leaves. Buds ovoid-acuminate, pale red-brown, ca. 1cm, resinous. Leaves 5 per fascicle, upcurved, persisting 10–17 years, (2–)3–4cm × 0.8–1mm, mostly connivent, deep blue-green, with drops and scales of resin, abaxial surface with strong, narrow median groove, adaxial surfaces conspicuously whitened by stomates, margins entire or distantly serrulate, apex conic-acute to conic-subulate; sheath 0.5–1.5cm, scales soon recurving, shed early. Pollen cones ellipsoid, ca. 10mm, bluish to red. Seed cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, lance-cylindric before opening, lance-ovoid to ovoid or cylindric when open, 6–11cm, purple to brown, nearly sessile; apophyses much thickened; umbo central, with triangular base, extended into slender, brittle prickle 4–10mm. Seeds obliquely obovoid; body 5–6mm, gray-brown to near black; wing ca. 10–13mm. 2n =24.
Habitat: Subalpine and alpine
Elevation: 2500–3400m
Distribution
Ariz., Colo., N.Mex.
Discussion
Pinus aristata has leaves usually narrower and sharper than in P. longaeva and P. balfouriana, and the leaves almost always have a narrow, median groove on the abaxial surface.
Selected References
None.