View source for Ulmus thomasii

{{Treatment/ID
|accepted_name=Ulmus thomasii
|accepted_authority=Sargent
|publications={{Treatment/Publication
|title=Silva
|place=14: 102. 1902
|year=1902
}}
|common_names=Rock elm;orme de Thomas
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms={{Treatment/ID/Synonym
|name=Species
|authority=Thomas
}}
|synonyms=
|hierarchy=Ulmaceae;Ulmus;Ulmus thomasii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ulmaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ulmus]]</div><div class="higher-taxon"><small>species</small>[[Ulmus thomasii]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> to 30 m; crowns oblong. <b>Bark</b> gray, deeply fissured with broad, flattened ridges. <b>Wood</b> hard. <b>Branches</b> short-spreading, young branches pubescent, old-growth with 3-5 prominent, irregular, corky wings; twigs reddish, pubescent. <b>Buds</b> brown, ovoid, acute, pubescent; scales brown, pilose on outer surface, ciliate on margins. <b>Leaves</b>: petiole ca. 5 mm, pubescent. <b>Leaf</b> blade obovate to oblong-oval, (2.5-)9-11(-16) × 2.5-5 cm, base oblique, margins doubly serrate, apex short-acuminate; surfaces abaxially white-pubescent, pubescence not tufted in axils of veins, adaxially dark green, usually glabrous, sometimes scabrous. <b>Inflorescences</b> racemose cymes, long-pendulous, (7-)10(-13)-flowered, to 5 cm; pedicel 0.5-1 cm. <b>Flowers</b>: calyx deeply lobed, divided nearly to middle, lobes 7-8; stamens 5-8; anthers dark purple; stigmas greenish, pubescent. <b>Samaras</b> elliptic to oval, 1.5-2.2 cm, narrowly winged, pubescent, margins short-ciliate, apex shallowly notched. <b>Seeds</b> inflated, not thickened. <b>2n</b> = 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Rocky slopes, limestone outcrops, rich woods, flood plains, stream banks
|elevation=30-900 m
|distribution=Ont.;Ark.;Ill.;Ind.;Iowa;Kans.;Ky.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;Ohio;S.Dak.;Tenn.;Vt.;W.Va.;Wis.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ulmus thomasii
|author=
|authority=Sargent
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Species
|family=Ulmaceae
|phenology=Flowering spring.
|habitat=Rocky slopes, limestone outcrops, rich woods, flood plains, stream banks
|elevation=30-900 m
|distribution=Ont.;Ark.;Ill.;Ind.;Iowa;Kans.;Ky.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;Ohio;S.Dak.;Tenn.;Vt.;W.Va.;Wis.
|reference=None
|publication title=Silva
|publication year=1902
|special status=Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_488.xml
|genus=Ulmus
|species=Ulmus thomasii
}}<!--

-->[[Category:Treatment]][[Category:Ulmus]]