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| − | --><span class="statement" id="st-d0_s0" data-properties="tree some measurement"><b>Trees,</b> to 21 m;</span> <span class="statement" id="st-d0_s1" data-properties="crown orientation;crown shape">crowns spreading, broadly rounded.</span> <span class="statement" id="st-d0_s2" data-properties="bark coloration;bark coloration;bark coloration;fissure depth"><b>Bark </b>light-brown to reddish with shallow fissures.</span> <span class="statement" id="st-d0_s3" data-properties="wood texture"><b>Wood </b>hard.</span> <span class="statement" id="st-d0_s4" data-properties="branch orientation;branch orientation;branch orientation;wing development;wing architecture or course;wing pubescence or texture"><b>Branches </b>spreading to pendulous, often developing irregular corky wings with maturity;</span> <span class="statement" id="st-d0_s5" data-properties="twig coloration;twig coloration;twig coloration;twig pubescence;twig pubescence;twig pubescence">twigs brown to gray, pubescent to glabrous.</span> <span class="statement" id="st-d0_s6" data-properties="bud coloration;apex shape;apex pubescence"><b>Buds </b>brown, apex acute, glabrous;</span> <span class="statement" id="st-d0_s7" data-properties="scale coloration;scale pubescence">scales dark-brown, glabrous.</span> <span class="statement" id="st-d0_s8" data-properties="petiole some measurement;petiole pubescence;petiole pubescence;petiole pubescence"><b>Leaves:</b> petiole ca. 6 mm, glabrous to pubescent.</span> <span class="statement" id="st-d0_s9" data-properties="leaf-blade shape;leaf-blade length;leaf-blade width;base orientation or shape;margin architecture or shape;apex shape"><b>Leaf-</b>blade oblong-obovate, 7-10 × 3-4.5 cm, base oblique, margins doubly serrate, apex acuminate;</span> <span class="statement" id="st-d0_s10" data-properties="surface coloration;surface pubescence;surface pubescence;surface coloration;surface pubescence">surfaces abaxially yellow-gold soft-pubescent, pubescence absent from axils of veins, adaxially yellow-green, glabrous.</span> <span class="statement" id="st-d0_s11" data-properties="inflorescences raceme architecture;inflorescences raceme length or size;inflorescences raceme some measurement"><b>Inflorescences </b>racemes, 8-12-flowered, long, to 5 cm;</span> <span class="statement" id="st-d0_s12" data-properties="pedicel some measurement">pedicel 0.5-1 cm.</span> <span class="statement" id="st-d0_s13" data-properties="calyx shape;lobe quantity"><b>Flowers:</b> calyx lobed almost to base, lobes 5-6;</span> <span class="statement" id="st-d0_s14" data-properties="stamen quantity">stamens 5-6;</span> <span class="statement" id="st-d0_s15" data-properties="anther coloration">anthers yellow-red;</span> <span class="statement" id="st-d0_s16" data-properties="stigma coloration;stigma pubescence">stigmas white, pubescent.</span> <span class="statement" id="st-d0_s17" data-properties="samara coloration;samara shape;samara shape;samara shape;samara some measurement;samara architecture;samara pubescence;margin architecture or pubescence or shape;tip shape"><b>Samaras </b>light-brown, ovoid to elliptic, 1-1.5 cm, narrowly winged, pubescent, margins densely ciliate, tip deeply notched.</span> <span class="statement" id="st-d0_s18" data-properties=""><b>Seeds </b>thickened, not inflated.</span> <span class="statement" id="st-d0_s19" data-properties="seed size or width;seed shape;2n chromosome quantity">2n = 28.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> to 21 m; crowns spreading, broadly rounded. <b>Bark</b> light brown to reddish with shallow fissures. <b>Wood</b> hard. <b>Branches</b> spreading to pendulous, often developing irregular corky wings with maturity; twigs brown to gray, pubescent to glabrous. <b>Buds</b> brown, apex acute, glabrous; scales dark brown, glabrous. <b>Leaves</b>: petiole ca. 6 mm, glabrous to pubescent. <b>Leaf</b> blade oblong-obovate, 7-10 × 3-4.5 cm, base oblique, margins doubly serrate, apex acuminate; surfaces abaxially yellow-gold soft-pubescent, pubescence absent from axils of veins, adaxially yellow-green, glabrous. <b>Inflorescences</b> racemes, 8-12-flowered, long, to 5 cm; pedicel 0.5-1 cm. <b>Flowers</b>: calyx lobed almost to base, lobes 5-6; stamens 5-6; anthers yellow-red; stigmas white, pubescent. <b>Samaras</b> light brown, ovoid to elliptic, 1-1.5 cm, narrowly winged, pubescent, margins densely ciliate, tip deeply notched. <b>Seeds</b> thickened, not inflated. <b>2n</b> = 28.</span><!-- |
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| | |publication year=1899 | | |publication year=1899 |
| | |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_1111.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_1111.xml |
| | |genus=Ulmus | | |genus=Ulmus |
| | |species=Ulmus serotina | | |species=Ulmus serotina |
| − | |2n chromosome quantity=28
| |
| − | |anther coloration=yellow-red
| |
| − | |apex pubescence=glabrous
| |
| − | |apex shape=acuminate;acute
| |
| − | |bark coloration=light-brown;reddish
| |
| − | |base orientation or shape=oblique
| |
| − | |branch orientation=spreading;pendulous
| |
| − | |bud coloration=brown
| |
| − | |calyx shape=lobed
| |
| − | |crown orientation=spreading
| |
| − | |crown shape=rounded
| |
| − | |fissure depth=shallow
| |
| − | |inflorescences raceme architecture=8-12-flowered
| |
| − | |inflorescences raceme length or size=long
| |
| − | |inflorescences raceme some measurement=0cm;5cm
| |
| − | |leaf-blade length=7cm;10cm
| |
| − | |leaf-blade shape=oblong-obovate
| |
| − | |leaf-blade width=3cm;4.5cm
| |
| − | |lobe quantity=5;6
| |
| − | |margin architecture or pubescence or shape=ciliate
| |
| − | |margin architecture or shape=serrate
| |
| − | |pedicel some measurement=0.5cm;1cm
| |
| − | |petiole pubescence=glabrous;pubescent
| |
| − | |petiole some measurement=6
| |
| − | |samara architecture=winged
| |
| − | |samara coloration=light-brown
| |
| − | |samara pubescence=pubescent
| |
| − | |samara shape=ovoid;elliptic
| |
| − | |samara some measurement=1cm;1.5cm
| |
| − | |scale coloration=dark-brown
| |
| − | |scale pubescence=glabrous
| |
| − | |seed shape=not inflated
| |
| − | |seed size or width=thickened
| |
| − | |stamen quantity=5;6
| |
| − | |stigma coloration=white
| |
| − | |stigma pubescence=pubescent
| |
| − | |surface coloration=yellow-green;yellow-gold
| |
| − | |surface pubescence=glabrous;absent;soft-pubescent
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| − | |tip shape=notched
| |
| − | |tree some measurement=0m;21m
| |
| − | |twig coloration=brown;gray
| |
| − | |twig pubescence=pubescent;glabrous
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| − | |wing architecture or course=irregular
| |
| − | |wing development=developing
| |
| − | |wing pubescence or texture=corky
| |
| − | |wood texture=hard
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| | -->[[Category:Treatment]][[Category:Ulmus]] | | -->[[Category:Treatment]][[Category:Ulmus]] |
Trees, to 21 m; crowns spreading, broadly rounded. Bark light brown to reddish with shallow fissures. Wood hard. Branches spreading to pendulous, often developing irregular corky wings with maturity; twigs brown to gray, pubescent to glabrous. Buds brown, apex acute, glabrous; scales dark brown, glabrous. Leaves: petiole ca. 6 mm, glabrous to pubescent. Leaf blade oblong-obovate, 7-10 × 3-4.5 cm, base oblique, margins doubly serrate, apex acuminate; surfaces abaxially yellow-gold soft-pubescent, pubescence absent from axils of veins, adaxially yellow-green, glabrous. Inflorescences racemes, 8-12-flowered, long, to 5 cm; pedicel 0.5-1 cm. Flowers: calyx lobed almost to base, lobes 5-6; stamens 5-6; anthers yellow-red; stigmas white, pubescent. Samaras light brown, ovoid to elliptic, 1-1.5 cm, narrowly winged, pubescent, margins densely ciliate, tip deeply notched. Seeds thickened, not inflated. 2n = 28.
Phenology: Flowering late summer–fall.
Habitat: Limestone bluffs, stream sides, rich woods
Elevation: 0-400 m
Distribution
Ala., Ark., Ga., Ill., Miss., Okla., Tenn., Tex.
Discussion
Ulmus serotina is infrequent, and few populations are found outside of Tennessee. It reputedly is highly susceptible to Dutch elm disease (W. H. Duncan and M. B. Duncan 1988), and it is sometimes cultivated. Ulmus serotina hybridizes with U. crassifolia, and plants have been informally designated U. arkansana, an unpublished name. In Arkansas and Oklahoma where hybrid swarms are common, specimens are often difficult to assign to either taxon.
