FNA>Volume Importer |
FNA>Volume Importer |
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| − | --><span class="statement" id="st-d0_s0" data-properties="tree duration;tree atypical some measurement;tree some measurement"><b>Trees,</b> deciduous, to 20 (-25) m.</span> <span class="statement" id="st-d0_s1" data-properties="bark coloration;bark architecture or pubescence;bark shape;ridge width"><b>Bark </b>pale gray, scaly, eventually divided into broad ridges.</span> <span class="statement" id="st-d0_s2" data-properties="twig coloration;twig coloration;twig diameter;lenticel prominence;lenticel pubescence or texture;lenticel coloration"><b>Twigs </b>dark-brown to somewhat reddish, 2-2.5 mm diam., often with prominent, corky, white lenticels.</span> <span class="statement" id="st-d0_s3" data-properties="bud coloration;bud shape;bud shape;bud length;bud width;bud pubescence"><b>Buds </b>dark reddish-brown, ovoid, distally acute, 3-5 × 2-2.5 mm, puberulent.</span> <span class="statement" id="st-d0_s4" data-properties="petiole some measurement"><b>Leaves:</b> petiole 3-5 mm.</span> <span class="statement" id="st-d0_s5" data-properties="leaf-blade coloration;leaf-blade coloration;leaf-blade shape;leaf-blade shape;leaf-blade atypical length;leaf-blade atypical length;leaf-blade length;leaf-blade atypical width;leaf-blade atypical width;leaf-blade width;base shape;base shape;margin shape;lobe shape;lobe shape;secondary-vein atypical quantity;secondary-vein quantity;apex shape"><b>Leaf-</b>blade green or grayish green, narrowly obovate or elliptic, (40-) 70-100 (-200) × (13-) 30-50 (-115) mm, base cuneate or attenuate, margins sinuately and irregularly shallowly lobed, lobes rounded, sometimes obtuse, secondary-veins 4-6 (-8) on each side, apex narrowly or broadly rounded;</span> <span class="statement" id="st-d0_s6" data-properties="surface diameter;surface pubescence;surface pubescence;surface reflectance;hair orientation;hair arrangement or shape;hair quantity">surfaces abaxially loosely covered with semierect stellate hairs to 0.5 mm diam., glabrous at maturity, often with a few hairs remaining along veins near midrib, adaxially glabrous, glossy.</span> <span class="statement" id="st-d0_s7" data-properties="acorn architecture;acorn architecture;axillary peduncle fragility or size;axillary peduncle some measurement"><b>Acorns </b>subsessile or on stout axillary peduncle to 15 mm;</span> <span class="statement" id="st-d0_s8" data-properties="cup shape;cup shape;cup shape;cup width;cup width;nut quantity;scale fixation or orientation;scale coloration;scale shape;scale size or width;scale relief;scale pubescence">cup hemispheric or deeply goblet or cupshaped, 9-10 mm deep × 10-13 mm wide, enclosing 1/3-1/2 nut, scales loosely appressed, gray, narrowly ovate, sometimes thickened near base, not tuberculate, canescent;</span> <span class="statement" id="st-d0_s9" data-properties="nut shape;nut shape;nut length;nut width">nut ovoid or elliptic, 17 × 12 mm.</span> <span class="statement" id="st-d0_s10" data-properties="cotyledon fusion"><b>Cotyledons </b>distinct.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> deciduous, to 20(-25) m. <b>Bark</b> pale gray, scaly, eventually divided into broad ridges. <b>Twigs</b> dark brown to somewhat reddish, 2-2.5 mm diam., often with prominent, corky, white lenticels. <b>Buds</b> dark reddish brown, ovoid, distally acute, 3-5 × 2-2.5 mm, puberulent. <b>Leaves</b>: petiole 3-5 mm. <b>Leaf</b> blade green or grayish green, narrowly obovate or elliptic, (40-)70-100(-200) × (13-)30-50(-115) mm, base cuneate or attenuate, margins sinuately and irregularly shallowly lobed, lobes rounded, sometimes obtuse, secondary veins 4-6(-8) on each side, apex narrowly or broadly rounded; surfaces abaxially loosely covered with semi-erect stellate hairs to 0.5 mm diam., glabrous at maturity, often with a few hairs remaining along veins near midrib, adaxially glabrous, glossy. <b>Acorns</b> subsessile or on stout axillary peduncle to 15 mm; cup hemispheric or deeply goblet- or cup-shaped, 9-10 mm deep × 10-13 mm wide, enclosing 1/3-1/2 nut, scales loosely appressed, gray, narrowly ovate, sometimes thickened near base, not tuberculate, canescent; nut ovoid or elliptic, 17 × 12 mm. <b>Cotyledons</b> distinct.</span><!-- |
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| | |publication year=1903 | | |publication year=1903 |
| | |special status=Endemic;Selected by author to be illustrated | | |special status=Endemic;Selected by author to be illustrated |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_659.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_659.xml |
| | |genus=Quercus | | |genus=Quercus |
| | |section=Quercus sect. Quercus | | |section=Quercus sect. Quercus |
| | |species=Quercus austrina | | |species=Quercus austrina |
| − | |acorn architecture=on stout axillary peduncle;subsessile
| |
| − | |apex shape=rounded
| |
| − | |axillary peduncle fragility or size=stout
| |
| − | |axillary peduncle some measurement=0mm;15mm
| |
| − | |bark architecture or pubescence=scaly
| |
| − | |bark coloration=pale gray
| |
| − | |bark shape=divided
| |
| − | |base shape=attenuate;cuneate
| |
| − | |bud coloration=dark reddish-brown
| |
| − | |bud length=3mm;5mm
| |
| − | |bud pubescence=puberulent
| |
| − | |bud shape=acute;ovoid
| |
| − | |bud width=2mm;2.5mm
| |
| − | |cotyledon fusion=distinct
| |
| − | |cup shape=cup-shaped;deeply;hemispheric
| |
| − | |cup width=×10-13;9mm;10mm
| |
| − | |hair arrangement or shape=stellate
| |
| − | |hair orientation=semierect
| |
| − | |hair quantity=few
| |
| − | |leaf-blade atypical length=100mm;200mm
| |
| − | |leaf-blade atypical width=50mm;115mm
| |
| − | |leaf-blade coloration=grayish green;green
| |
| − | |leaf-blade length=70mm;100mm
| |
| − | |leaf-blade shape=elliptic;obovate
| |
| − | |leaf-blade width=30mm;50mm
| |
| − | |lenticel coloration=white
| |
| − | |lenticel prominence=prominent
| |
| − | |lenticel pubescence or texture=corky
| |
| − | |lobe shape=obtuse;rounded
| |
| − | |margin shape=lobed
| |
| − | |nut length=17
| |
| − | |nut quantity=1/3;1/2
| |
| − | |nut shape=elliptic;ovoid
| |
| − | |nut width=12
| |
| − | |petiole some measurement=3mm;5mm
| |
| − | |ridge width=broad
| |
| − | |scale coloration=gray
| |
| − | |scale fixation or orientation=appressed
| |
| − | |scale pubescence=canescent
| |
| − | |scale relief=not tuberculate
| |
| − | |scale shape=ovate
| |
| − | |scale size or width=thickened
| |
| − | |secondary-vein atypical quantity=6;8
| |
| − | |secondary-vein quantity=4;6
| |
| − | |surface diameter=0mm;0.5mm
| |
| − | |surface pubescence=glabrous;glabrous
| |
| − | |surface reflectance=glossy
| |
| − | |tree atypical some measurement=20m;25m
| |
| − | |tree duration=deciduous
| |
| − | |tree some measurement=0m;20m
| |
| − | |twig coloration=reddish;dark-brown to somewhat
| |
| − | |twig diameter=2mm;2.5mm
| |
| | }}<!-- | | }}<!-- |
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| | -->[[Category:Treatment]][[Category:Quercus sect. Quercus]] | | -->[[Category:Treatment]][[Category:Quercus sect. Quercus]] |
Trees, deciduous, to 20(-25) m. Bark pale gray, scaly, eventually divided into broad ridges. Twigs dark brown to somewhat reddish, 2-2.5 mm diam., often with prominent, corky, white lenticels. Buds dark reddish brown, ovoid, distally acute, 3-5 × 2-2.5 mm, puberulent. Leaves: petiole 3-5 mm. Leaf blade green or grayish green, narrowly obovate or elliptic, (40-)70-100(-200) × (13-)30-50(-115) mm, base cuneate or attenuate, margins sinuately and irregularly shallowly lobed, lobes rounded, sometimes obtuse, secondary veins 4-6(-8) on each side, apex narrowly or broadly rounded; surfaces abaxially loosely covered with semi-erect stellate hairs to 0.5 mm diam., glabrous at maturity, often with a few hairs remaining along veins near midrib, adaxially glabrous, glossy. Acorns subsessile or on stout axillary peduncle to 15 mm; cup hemispheric or deeply goblet- or cup-shaped, 9-10 mm deep × 10-13 mm wide, enclosing 1/3-1/2 nut, scales loosely appressed, gray, narrowly ovate, sometimes thickened near base, not tuberculate, canescent; nut ovoid or elliptic, 17 × 12 mm. Cotyledons distinct.
Phenology: Flowering spring.
Habitat: River bottoms, wet forests, flatwoods
Elevation: 0-200 m
Distribution
Ala., Fla., Ga., Miss., N.C., S.C.
Discussion
Quercus austrina is probably the most misunderstood oak of the southeastern United States. Although the species is fairly widespread, it is apparently abundant only in local areas and is poorly represented in herbaria. This may be partly because Q. austrina is often misidentified as Q. sinuata, which it superficially resembles, or as Q. nigra, a red oak with similarly shaped leaves. It is easily distinguished from Q. sinuata by its larger, more acute buds; darker twigs; deeper, turbinate acorn cups; and absence of minute, appressed, stellate hairs on the abaxial leaf surface. Instead, Q. austrina has a tomentum of soft erect hairs on young leaves, and glabrate mature leaves.
Selected References
None.
