Difference between revisions of "Picea breweriana"

S. Watson

Proc. Amer. Acad. Arts 20: 378. 1885.

Common names: Brewer spruce weeping spruce
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="tree some measurement"><b>Trees </b>to 40m;</span> <span class="statement" id="st-d0_s1" data-properties="trunk diameter;trunk architecture">trunk to 1.5m diam., typically buttressed;</span> <span class="statement" id="st-d0_s2" data-properties="crown shape">crown conic.</span> <span class="statement" id="st-d0_s3" data-properties="bark coloration;bark coloration;bark coloration"><b>Bark </b>gray to brown.</span> <span class="statement" id="st-d0_s4" data-properties="branch orientation"><b>Branches </b>drooping;</span> <span class="statement" id="st-d0_s5" data-properties="twig orientation;twig shape;twig size;twig coloration;twig pubescence">twigs pendent, elongate, slender, gray-brown, finely pubescent.</span> <span class="statement" id="st-d0_s6" data-properties="bud coloration;bud some measurement;apex shape"><b>Buds </b>gray-brown, 5–7mm, apex rounded.</span> <span class="statement" id="st-d0_s7" data-properties="leaf some measurement;leaf shape;leaf shape;leaf texture;abaxial surface coloration;stomatal count;band count;adaxial surface pubescence;stomatal prominence;stomatal arrangement;band prominence;band arrangement;ridge prominence;apex shape"><b>Leaves </b>1.5–3cm, flattened or broadly triangular in cross-section (abaxial surface rounded or slightly angular), rather rigid, abaxial surface dark green with stomatal bands absent, adaxial surface glaucous with conspicuous stomatal bands separated by slight ridge or angle, apex blunt (especially on older leaves).</span> <span class="statement" id="st-d0_s8" data-properties="seed-cone distance"><b>Seed-</b>cones 6.5–12cm;</span> <span class="statement" id="st-d0_s9" data-properties="scale shape;scale length;scale width;scale texture;apex architecture;apex architecture;apex architecture">scales fan-shaped, 15–20 × 15–20mm, rigid, margin at apex entire to slightly erose.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 40m; trunk to 1.5m diam., typically buttressed; crown conic. <b>Bark</b> gray to brown. <b>Branches</b> drooping; twigs pendent, elongate, slender, gray-brown, finely pubescent. <b>Buds</b> gray-brown, 5–7mm, apex rounded. <b>Leaves</b> 1.5–3cm, flattened or broadly triangular in cross section (abaxial surface rounded or slightly angular), rather rigid, abaxial surface dark green with stomatal bands absent, adaxial surface glaucous with conspicuous stomatal bands separated by slight ridge or angle, apex blunt (especially on older leaves). <b>Seed</b> cones 6.5–12cm; scales fan-shaped, 15–20 × 15–20mm, rigid, margin at apex entire to slightly erose.</span><!--
  
 
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|publication year=1885
 
|publication year=1885
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_107.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_107.xml
 
|genus=Picea
 
|genus=Picea
 
|species=Picea breweriana
 
|species=Picea breweriana
|abaxial surface coloration=dark green
 
|adaxial surface pubescence=glaucous
 
|apex architecture=entire;slightly erose
 
|apex shape=blunt;rounded
 
|band arrangement=separated
 
|band count=absent
 
|band prominence=conspicuous
 
|bark coloration=gray;brown
 
|branch orientation=drooping
 
|bud coloration=gray-brown
 
|bud some measurement=5mm;7mm
 
|crown shape=conic
 
|leaf shape=triangular;flattened
 
|leaf some measurement=1.5cm;3cm
 
|leaf texture=rigid
 
|ridge prominence=slight
 
|scale length=15mm;20mm
 
|scale shape=fan-shaped
 
|scale texture=rigid
 
|scale width=15mm;20mm
 
|seed-cone distance=6.5cm;12cm
 
|stomatal arrangement=separated
 
|stomatal count=absent
 
|stomatal prominence=conspicuous
 
|tree some measurement=0m;40m
 
|trunk architecture=buttressed
 
|trunk diameter=0m;1.5m
 
|twig coloration=gray-brown
 
|twig orientation=pendent
 
|twig pubescence=pubescent
 
|twig shape=elongate
 
|twig size=slender
 
 
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}}<!--
  
 
-->[[Category:Treatment]][[Category:Picea]]
 
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Revision as of 14:10, 27 July 2019

Trees to 40m; trunk to 1.5m diam., typically buttressed; crown conic. Bark gray to brown. Branches drooping; twigs pendent, elongate, slender, gray-brown, finely pubescent. Buds gray-brown, 5–7mm, apex rounded. Leaves 1.5–3cm, flattened or broadly triangular in cross section (abaxial surface rounded or slightly angular), rather rigid, abaxial surface dark green with stomatal bands absent, adaxial surface glaucous with conspicuous stomatal bands separated by slight ridge or angle, apex blunt (especially on older leaves). Seed cones 6.5–12cm; scales fan-shaped, 15–20 × 15–20mm, rigid, margin at apex entire to slightly erose.


Habitat: Montane to subalpine forests of the Siskiyou Mountains
Elevation: 1000–2300m

Discussion

Lower Taxa

None.