Pseudotsuga macrocarpa

(Vasey) Mayr

Wald. Nordamer. 278, plates 6, 8, 9. 1890.

Common names: Bigcone Douglas-fir bigcone-spruce
Endemic
Basionym: Abies macrocarpa Vasey Gard. Monthly & Hort. 18: 21. 1876 (Jan.)
Synonyms: Pseudotsuga californica Flous Pseudotsuga douglasii var. macrocarpa (Vasey) Engelmann
Treatment appears in FNA Volume 2.
Revision as of 23:22, 29 July 2020 by imported>Volume Importer
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Trees to 44m; trunk to 2.3m diam.; crown broadly conic. Twigs slender, glabrous or pubescent. Leaves (20–) 25–45 × 1–1.5mm, bluish green, apex mucronulate. Pollen cones pale-yellow. Seed-cones 9–20 × 4–7cm. Seeds 9–12mm. 2n =24.


Habitat: Slopes, cliffs, and canyons, in chaparral and mixed coniferous forests
Elevation: 200–2400m

Discussion

Pseudotsuga macrocarpa, a tree of scattered occurrence and of no concern for timber, is valuable for esthetics and watershed protection. The northernmost stands of the species, in Kern County, are about 35 kilometers east of the closest approach of P. menziesii.

Lower Taxa

None.

"relatively thin" is not a number.

... more about "Pseudotsuga macrocarpa"
mucronulate +
pendent +  and deflexed +
cylindric +, ovoid +  and ellipsoid +
Barney Lipscomb +
(Vasey) Mayr +
reddish-brown +
Abies macrocarpa +
not resinous +
conspicuous +
elongate +
Bigcone Douglas-fir +  and bigcone-spruce +
200–2400m +
Slopes, cliffs, and canyons, in chaparral and mixed coniferous forests +
flush +  and raised +
short-stalked +
alternate +  and singly +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
bluish green +
persisting +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
6 (?) +  and 8 (?) +
flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not winged +  and 2-winged +
ovoid +  and ellipsoid or cylindric +
Wald. Nordamer. +
minnich1982a +
fibrous;woody +
arranged +  and overlapping +
persistent +
flattened +
grouped +  and solitary +
long-persistent +
9 cm90 mm <br />0.09 m <br /> (20 cm200 mm <br />0.2 m <br />) +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
reduced;well-defined short +
Pseudotsuga californica +  and Pseudotsuga douglasii var. macrocarpa +
Pseudotsuga macrocarpa +
Pseudotsuga +
species +
decurrent +  and elongate +
pubescent +  and glabrous +
slender +
reduced +