Difference between revisions of "Calocedrus"

Kurz

J. Bot. 11: 196. 1873.

Etymology: Greek callos, beautiful, and kedros, cedar
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="tree duration;tree size"><b>Trees </b>evergreen, large.</span> <span class="statement" id="st-d0_s1" data-properties="branchlet shape;spray shape;spray shape"><b>Branchlets </b>flattened, in fan-shaped flattened sprays.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement;rank count"><b>Leaves </b>opposite in 4 ranks (although apparently in whorls of 4).</span> <span class="statement" id="st-d0_s3" data-properties="leaf life cycle;leaf growth form;leaf fixation or orientation;leaf arrangement;leaf shape;facial leaf arrangement;portion fusion"><b>Adult </b>leaves dimorphic, appressed, overlapping, scalelike, lateral leaves overlapping facial leaves, free portion of long-shoot leaves to ca. 3 mm;</span> <span class="statement" id="st-d0_s4" data-properties="abaxial gland count">abaxial glands present.</span> <span class="statement" id="st-d0_s5" data-properties="pair count;pollen-sac count"><b>Pollen </b>cones with 6–8 pairs of sporophylls, each sporophyll with 4 pollen-sacs.</span> <span class="statement" id="st-d0_s6" data-properties="seed-cone life cycle;seed-cone structure subtype;seed-cone shape;seed-cone distance"><b>Seed-</b>cones maturing and opening first-year, ellipsoid, 17–30 mm;</span> <span class="statement" id="st-d0_s7" data-properties="scale duration;scale atypical count;scale count;scale shape;scale fixation;scale width;scale texture">scales persistent, (2–) 3 pairs, oblong and basifixed, thin and woody;</span> <span class="statement" id="st-d0_s8" data-properties="">proximal pair reduced, sterile, often reflexed or lacking;</span> <span class="statement" id="st-d0_s9" data-properties="">median pair fertile;</span> <span class="statement" id="st-d0_s10" data-properties="proximal scale size;proximal scale reproduction;proximal scale orientation;proximal scale count;proximal scale position;proximal scale reproduction;proximal scale position or shape;proximal scale fusion;proximal scale reproduction">distal pair connate, sterile.</span> <span class="statement" id="st-d0_s11" data-properties="seed count;seed shape;seed architecture"><b>Seeds </b>2 per scale, lenticular, unequally 2-winged;</span> <span class="statement" id="st-d0_s12" data-properties="">cotyledons 2.</span> <span class="statement" id="st-d0_s13" data-properties="cotyledon count;x chromosome count">x = 11.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>evergreen, large. <b>Branchlets</b> flattened, in fan-shaped flattened sprays. <b>Leaves</b> opposite in 4 ranks (although apparently in whorls of 4). <b>Adult</b> leaves dimorphic, appressed, overlapping, scalelike, lateral leaves overlapping facial leaves, free portion of long-shoot leaves to ca. 3 mm; abaxial glands present. <b>Pollen</b> cones with 6–8 pairs of sporophylls, each sporophyll with 4 pollen sacs. <b>Seed</b> cones maturing and opening first year, ellipsoid, 17–30 mm; scales persistent, (2–)3 pairs, oblong and basifixed, thin and woody; proximal pair reduced, sterile, often reflexed or lacking; median pair fertile; distal pair connate, sterile. <b>Seeds</b> 2 per scale, lenticular, unequally 2-winged; cotyledons 2. <b>x</b> = 11.</span><!--
  
 
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|publication year=1873
 
|publication year=1873
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_795.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_795.xml
 
|genus=Calocedrus
 
|genus=Calocedrus
|abaxial gland count=present
 
|branchlet shape=flattened
 
|cotyledon count=2
 
|facial leaf arrangement=overlapping
 
|leaf arrangement=overlapping;opposite
 
|leaf fixation or orientation=appressed
 
|leaf growth form=dimorphic
 
|leaf life cycle=adult
 
|leaf shape=scalelike
 
|pair count=6;8
 
|pollen-sac count=4
 
|portion fusion=free
 
|proximal scale count=lacking
 
|proximal scale fusion=connate
 
|proximal scale orientation=reflexed
 
|proximal scale position=median
 
|proximal scale position or shape=distal
 
|proximal scale reproduction=sterile;fertile;sterile
 
|proximal scale size=reduced
 
|rank count=4
 
|scale atypical count=2;3
 
|scale count=3
 
|scale duration=persistent
 
|scale fixation=basifixed
 
|scale shape=oblong
 
|scale texture=woody
 
|scale width=thin
 
|seed architecture=2-winged
 
|seed count=2
 
|seed shape=lenticular
 
|seed-cone distance=17mm;30mm
 
|seed-cone life cycle=maturing
 
|seed-cone shape=ellipsoid
 
|seed-cone structure subtype=first-year
 
|spray shape=flattened;fan-shaped
 
|tree duration=evergreen
 
|tree size=large
 
|x chromosome count=11
 
 
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Latest revision as of 20:25, 5 November 2020

Trees evergreen, large. Branchlets flattened, in fan-shaped flattened sprays. Leaves opposite in 4 ranks (although apparently in whorls of 4). Adult leaves dimorphic, appressed, overlapping, scalelike, lateral leaves overlapping facial leaves, free portion of long-shoot leaves to ca. 3 mm; abaxial glands present. Pollen cones with 6–8 pairs of sporophylls, each sporophyll with 4 pollen sacs. Seed cones maturing and opening first year, ellipsoid, 17–30 mm; scales persistent, (2–)3 pairs, oblong and basifixed, thin and woody; proximal pair reduced, sterile, often reflexed or lacking; median pair fertile; distal pair connate, sterile. Seeds 2 per scale, lenticular, unequally 2-winged; cotyledons 2. x = 11.

Distribution

North America, Asia with 1 in Taiwan and 1 in s China and Myanmar.

Discussion

Species 3 (1 in the flora).

Selected References

None.