Pinus muricata
Trans. Linn. Soc. London, Bot. 17: 441. 1836.
Trees to 24m; trunk to 0.9m diam., straight to contorted; crown becoming rounded, flattened, or irregular. Bark dark gray, deeply furrowed, ridges long, scaly-plated. Branches spreading-ascending, often contorted; twigs stout to slender, orangebrown, aging darker brown, rough. Buds ovoid-cylindric, dark-brown, 1–2.5cm, resinous. Leaves 2 per fascicle, spreading to upcurved, persisting 2–3 years, 8–15cm × (1.2–) 1.5 (–2) mm, slightly twisted, dark yellow-green, all surfaces with stomatal lines, margins strongly serrulate, apex abruptly conic-acute; sheath to 1.5cm, base persistent. Pollen cones ellipsoid, to 5mm, orange. Seed-cones maturing in 3 years, serotinous, long-persistent, mostly in whorls, mostly asymmetric, lanceoloid-ovoid before opening, curved-ovoid when open, 4–9cm, glossy bright to pale redbrown, sessile or on stalks to 1cm, mostly downcurved, scales with deep redbrown border distally on adaxial surface; apophyses much thickened, the abaxial ones progressively more angulately dome-shaped toward base of cone; umbo central, a stout-based, curved claw. Seeds obliquely ellipsoid; body 6–7mm, dark-brown to near black; wing 15–20mm. 2n =24.
Habitat: Dry ridges to coastal, windshorn forests, often in or around bogs
Elevation: 0–300m
Distribution
Calif., Mexico in Baja California
Discussion
The several varieties described for Pinus muricata reflect the high variability in leaf characters and in degree of elaboration of apophysis and umbo in this species. The extremes can sometimes occur together.
Of conservation concern.
Selected References
None.
Lower Taxa
"relatively thin" is not a number.