Difference between revisions of "Abies lowiana"
Proc. Roy. Hort. Soc. London 3: 317. 1863.
Common names: Sierra white fir California white fir
Basionym: Picea lowiana Gordon
Synonyms: Abies concolor var. lowiana (Gordon) Lemmon
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 60m; trunk to 1.9m diam.; crown somewhat spirelike. <b>Bark</b> gray, thin, smooth, with age thickening and breaking into deep longitudinal furrows ("corky"), which may reveal inner yellow-caramel periderm. <b>Branches</b> diverging from trunk at right angles, or slightly drooping; twigs mostly opposite, yellow-green, pubescent or glabrous. <b>Buds</b> exposed, tan, globose, resinous, moderately large, apex rounded; basal scales short, broad, equilaterally triangular, sparsely pubescent, not resinous, margins entire, apex sharp-pointed. <b>Leaves</b> 2–6cm × 2–3mm, mostly 2-ranked, flexible, proximal portion ± straight; cross section flat, grooved adaxially; odor pungent, pinelike; abaxial surface glaucous or not, with 5–8 stomatal rows on each side of midrib; adaxial surface light green, not glaucous, with ca. (5–)7(–9) stomatal rows at midleaf, these fewer toward leaf apex; apex weakly notched; resin canals small, near margins and abaxial epidermal layer. <b>Seed</b> cones cylindric, 8–9 × 4–4.5cm, olive-green, turning to yellowish brown, then darker brown, sessile, apex round; scales ca. 2.5–3 × 2.8–3.8cm, pubescent; bracts included. <b>Seeds</b> 8–12 × 3mm, body dull brown; wing about twice as long as body, brown with rosy tinge; cotyledons 5–9.</span><!-- |
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|publication year=1863 | |publication year=1863 | ||
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|genus=Abies | |genus=Abies | ||
|species=Abies lowiana | |species=Abies lowiana | ||
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Revision as of 14:24, 27 July 2019
Trees to 60m; trunk to 1.9m diam.; crown somewhat spirelike. Bark gray, thin, smooth, with age thickening and breaking into deep longitudinal furrows ("corky"), which may reveal inner yellow-caramel periderm. Branches diverging from trunk at right angles, or slightly drooping; twigs mostly opposite, yellow-green, pubescent or glabrous. Buds exposed, tan, globose, resinous, moderately large, apex rounded; basal scales short, broad, equilaterally triangular, sparsely pubescent, not resinous, margins entire, apex sharp-pointed. Leaves 2–6cm × 2–3mm, mostly 2-ranked, flexible, proximal portion ± straight; cross section flat, grooved adaxially; odor pungent, pinelike; abaxial surface glaucous or not, with 5–8 stomatal rows on each side of midrib; adaxial surface light green, not glaucous, with ca. (5–)7(–9) stomatal rows at midleaf, these fewer toward leaf apex; apex weakly notched; resin canals small, near margins and abaxial epidermal layer. Seed cones cylindric, 8–9 × 4–4.5cm, olive-green, turning to yellowish brown, then darker brown, sessile, apex round; scales ca. 2.5–3 × 2.8–3.8cm, pubescent; bracts included. Seeds 8–12 × 3mm, body dull brown; wing about twice as long as body, brown with rosy tinge; cotyledons 5–9.
Habitat: Mixed coniferous forests
Elevation: 900–2300m
Discussion
Selected References
None.
Lower Taxa
None.