Pinus contorta var. murrayana

(Greville & Balfour) Engelmann in S. Watson

in S. Watson,Bot. California 2: 126. 1880.

Common names: Sierra lodgepole pine
Basionym: Pinus murrayana in A. Murray bis, Bot. Exped. Oregon 8: no. 740, plate 1853
Synonyms: Pinus contorta subsp. murrayana (Greville & Balfour) Critchfield
Treatment appears in FNA Volume 2.
Revision as of 23:25, 29 July 2020 by imported>Volume Importer
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Trees to 50m; trunk to 0.9m diam., straight, little tapering; crown mostly conic at maturity. Bark scaly, not evidently furrowed, orange to purple-brown. Branches spreading, ascending at tips. Leaves 5–8cm × 1–2mm, yellow-green, apex acute. Seed-cones maturing in 2 years, shedding seeds and falling soon thereafter, nearly symmetric, mostly spreading, rarely in whorls, more often paired or solitary, mid and lower apophyses mostly shallowly domed.


Habitat: Montane forests
Elevation: 400–3500m

Distribution

V2 255-distribution-map.gif

Calif., Nev., Oreg., Wash., Mexico in Baja California

Discussion

Pinus contorta var. murrayana is the tallest and best-formed variety of this species.

Selected References

None.

Lower Taxa

None.

"relatively thin" is not a number.

resinous +
mammillate +, cross-keeled +, elongate +  and rhombic +
Robert Kral +
(Greville & Balfour) Engelmann in S. Watson +
orange;purple-brown +
Pinus murrayana +
black +, mottled with black +  and redbrown +
5 cm50 mm <br />0.05 m <br /> (?) +
ascending +  and spreading +
resinous +
dark redbrown +
conspicuous +
0 cm0 mm <br />0 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Sierra lodgepole pine +
Calif. +, Nev. +, Oreg. +, Wash. +  and Mexico in Baja California +
400–3500m +
sheathed +  and sessile +
rounded +, 2-3-angled +  and terete +
Montane forests +
arranged +  and fascicles +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
yellow-green +
persisting +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ascending;spreading +
3 (?) +  and 8 (?) +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not winged +  and 2-winged +
ellipsoid +  and cylindric +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
barely elongate;stubby +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
in S. Watson,Bot. California +
fibrous;woody +
arranged +  and overlapping +
persistent +
flattened +
pliable +  and woody +
solitary +  and paired +
long-persistent +
falling +  and maturing +
wingless +, winged +, stalked +  and sessile +
persistent +
pendent;more or less erect +
obovoid;compressed +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced;well-defined short +
extended +
Pinus contorta subsp. murrayana +
Pinus contorta var. murrayana +
Pinus contorta +
variety +
decurrent +  and elongate +
straight +
tapering +
darker brown +, orange +  and redbrown +
slender +
depressed-triangular +
reduced +
1 cm10 mm <br />0.01 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +