Difference between revisions of "Quercus graciliformis"

C. H. Muller

Torreya 34: 120. 1934.

Common names: Chisos oak
Conservation concernEndemicSelected by author to be illustrated
Synonyms: Species Cory & ParksVariety C. H. Muller
Treatment appears in FNA Volume 3.
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--><span class="statement" id="st-d0_s0" data-properties="tree duration;tree some measurement"><b>Trees,</b> tardily deciduous, to 8 m.</span> <span class="statement" id="st-d0_s1" data-properties="bark coloration;bark architecture"><b>Bark </b>gray, furrowed.</span> <span class="statement" id="st-d0_s2" data-properties="twig coloration;twig coloration;twig coloration;twig coloration;twig coloration;twig diameter;twig pubescence;twig pubescence"><b>Twigs </b>straw colored to brown or deep reddish-brown, 1-2 mm diam., glabrate or somewhat pubescent at apex.</span> <span class="statement" id="st-d0_s3" data-properties="terminal bud coloration;terminal bud coloration;terminal bud coloration;terminal bud shape;terminal bud some measurement;terminal bud architecture or pubescence or shape"><b>Terminal </b>buds glossy brown or redbrown, ovoid, 1.5-3 mm, minutely ciliate.</span> <span class="statement" id="st-d0_s4" data-properties="petiole some measurement;petiole pubescence;petiole pubescence"><b>Leaves:</b> petiole 10-20 mm, glabrous or glabrate.</span> <span class="statement" id="st-d0_s5" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade position;leaf-blade position;leaf-blade position;leaf-blade position;leaf-blade length;leaf-blade width;base shape;base shape;base shape;margin architecture or shape;margin architecture or shape;tooth quantity;lobe depth;sinuse shape;awn quantity;apex shape;apex shape;apex shape"><b>Leaf-</b>blade lanceolate to narrowly elliptic, widest proximal to middle, 45-90 × 10-25 mm, base rounded to cuneate, margins entire or with 8-10 teeth or shallow lobes with rounded sinuses, awns 1-9, apex acute to long-attenuate;</span> <span class="statement" id="st-d0_s6" data-properties="surface pubescence;surface pubescence;surface pubescence;axillary tuft size">surfaces abaxially glabrous or occasionally with small axillary tufts of tomentum, adaxially glabrous except for scattered pubescence near base and along midrib.</span> <span class="statement" id="st-d0_s7" data-properties="acorn duration"><b>Acorns </b>biennial;</span> <span class="statement" id="st-d0_s8" data-properties="cup shape;cup width;cup width;nut quantity;outer surface pubescence;outer surface pubescence;outer surface pubescence;inner surface pubescence;scale fixation or orientation;scale shape;scale relief">cup saucer to shallowly bowl-shaped, 4-6 mm high × 7-10 mm wide, covering 1/4-1/3 nut, outer surface puberulent to glabrate, inner surface uniformly pubescent, scales appressed, acute, occasionally tuberculate at base;</span> <span class="statement" id="st-d0_s9" data-properties="nut shape;nut shape;nut shape;nut length;nut width;nut pubescence;scar diam">nut ovoid to narrowly ellipsoid, 9-18 × 7-10 mm, minutely puberulent, scar diam. 3-4.5 mm.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> tardily deciduous, to 8 m. <b>Bark</b> gray, furrowed. <b>Twigs</b> straw colored to brown or deep reddish brown, 1-2 mm diam., glabrate or somewhat pubescent at apex. <b>Terminal</b> buds glossy brown or red-brown, ovoid, 1.5-3 mm, minutely ciliate. <b>Leaves</b>: petiole 10-20 mm, glabrous or glabrate. <b>Leaf</b> blade lanceolate to narrowly elliptic, widest proximal to middle, 45-90 × 10-25 mm, base rounded to cuneate, margins entire or with 8-10 teeth or shallow lobes with rounded sinuses, awns 1-9, apex acute to long-attenuate; surfaces abaxially glabrous or occasionally with small axillary tufts of tomentum, adaxially glabrous except for scattered pubescence near base and along midrib. <b>Acorns</b> biennial; cup saucer- to shallowly bowl-shaped, 4-6 mm high × 7-10 mm wide, covering 1/4-1/3 nut, outer surface puberulent to glabrate, inner surface uniformly pubescent, scales appressed, acute, occasionally tuberculate at base; nut ovoid to narrowly ellipsoid, 9-18 × 7-10 mm, minutely puberulent, scar diam. 3-4.5 mm.</span><!--
  
 
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|publication year=1934
 
|publication year=1934
 
|special status=Conservation concern;Endemic;Selected by author to be illustrated
 
|special status=Conservation concern;Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_11.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_11.xml
 
|genus=Quercus
 
|genus=Quercus
 
|section=Quercus sect. Lobatae
 
|section=Quercus sect. Lobatae
 
|species=Quercus graciliformis
 
|species=Quercus graciliformis
|acorn duration=biennial
 
|apex shape=acute;long-attenuate
 
|awn quantity=1;9
 
|axillary tuft size=small
 
|bark architecture=furrowed
 
|bark coloration=gray
 
|base shape=rounded;cuneate
 
|cup shape=bowl--shaped
 
|cup width=×7-10;4mm;6mm
 
|inner surface pubescence=pubescent
 
|leaf-blade length=45mm;90mm
 
|leaf-blade position=proximal;middle
 
|leaf-blade shape=lanceolate;narrowly elliptic
 
|leaf-blade width=10mm;25mm
 
|lobe depth=shallow
 
|margin architecture or shape=with 8-10 teeth or shallow lobes;entire
 
|nut length=9mm;18mm
 
|nut pubescence=puberulent
 
|nut quantity=1/4;1/3
 
|nut shape=ovoid;narrowly ellipsoid
 
|nut width=7mm;10mm
 
|outer surface pubescence=puberulent;glabrate
 
|petiole pubescence=glabrate;glabrous
 
|petiole some measurement=10mm;20mm
 
|scale fixation or orientation=appressed
 
|scale relief=tuberculate
 
|scale shape=acute
 
|scar diam=3mm;4.5mm
 
|sinuse shape=rounded
 
|surface pubescence=glabrous;occasionally;glabrous
 
|terminal bud architecture or pubescence or shape=ciliate
 
|terminal bud coloration=redbrown;brown;glossy
 
|terminal bud shape=ovoid
 
|terminal bud some measurement=1.5mm;3mm
 
|tooth quantity=8;10
 
|tree duration=deciduous
 
|tree some measurement=0m;8m
 
|twig coloration=straw colored;brown or deep reddish-brown
 
|twig diameter=1mm;2mm
 
|twig pubescence=pubescent;glabrate
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Quercus sect. Lobatae]]
 
-->[[Category:Treatment]][[Category:Quercus sect. Lobatae]]

Revision as of 13:31, 27 July 2019

Trees, tardily deciduous, to 8 m. Bark gray, furrowed. Twigs straw colored to brown or deep reddish brown, 1-2 mm diam., glabrate or somewhat pubescent at apex. Terminal buds glossy brown or red-brown, ovoid, 1.5-3 mm, minutely ciliate. Leaves: petiole 10-20 mm, glabrous or glabrate. Leaf blade lanceolate to narrowly elliptic, widest proximal to middle, 45-90 × 10-25 mm, base rounded to cuneate, margins entire or with 8-10 teeth or shallow lobes with rounded sinuses, awns 1-9, apex acute to long-attenuate; surfaces abaxially glabrous or occasionally with small axillary tufts of tomentum, adaxially glabrous except for scattered pubescence near base and along midrib. Acorns biennial; cup saucer- to shallowly bowl-shaped, 4-6 mm high × 7-10 mm wide, covering 1/4-1/3 nut, outer surface puberulent to glabrate, inner surface uniformly pubescent, scales appressed, acute, occasionally tuberculate at base; nut ovoid to narrowly ellipsoid, 9-18 × 7-10 mm, minutely puberulent, scar diam. 3-4.5 mm.


Phenology: Flowering spring.
Habitat: Dry rocky canyons of the Chisos Mountains
Elevation: 0-1650 m

Discussion

Of conservation concern.

Quercus graciliformis reportedly hybridizes with Q. emoryi.

Selected References

None.

Lower Taxa

None.