View source for Crataegus ×vailiae

{{Treatment/ID
|accepted_name=Crataegus ×vailiae
|accepted_authority=Crataegus ×vailiae Britton
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=24: 53. 1897
|year=1897
|other_info_on_pub=as species
}}
|common_names=Vail’s hawthorn
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Crataegus conjungens
|authority=Sargent
|rank=species
}} {{Treatment/ID/Synonym
|name=C. missouriensis
|authority=Ashe
|rank=species
}} {{Treatment/ID/Synonym
|name=C. palliata
|authority=Sargent
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Crataegus;Crataegus ×vailiae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Gillenieae]]</div><div class="higher-taxon"><small>genus</small>[[Crataegus]]</div><div class="higher-taxon"><small>species</small>[[Crataegus ×vailiae]]</div></div>
|volume=Volume 9
|mention_page=page 516, 518, 522, 605, 610, 643
|treatment_page=page 642
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 20–40(–50) dm. <b>Stems</b>: twigs: new growth densely pubescent, 1-year old sparsely pubescent, 2-years old shiny, dark blackish brown to dark gray, glabrous, older dark gray; thorns on twigs absent or few, straight to slightly recurved, 2-years old black, ± narrow, 3 cm. <b>Leaves</b> deciduous; petiole length 5–15% blade, pubescent, sometimes glandular; blade elliptic to rhombic-elliptic, 4–5(–6) cm, ± coriaceous, base cuneate, lobes 1–3 per side, sinuses extremely shallow, lobe apex subacute, margins toothed, teeth large, acute or subacute except near base, sharp or obtuse, eglandular, tapered to bases, venation craspedodromous, veins 4–6 per side, apex subacute, adaxial surfaces matte, appressed-pubescent young, abaxial very sparsely pubescent, glabrescent, veins persistently densely pubescent. <b>Inflorescences</b> 2–8(–20)-flowered; branches very densely appressed-pubescent; bracteoles caducous, few, linear, membranous, margins glandular, sometimes larger (15 × 3 mm), more herbaceous in basal parts. <b>Flowers</b> 15–20 mm diam.; hypanthium densely pubescent; sepals narrowly triangular, 6–8 mm, ± equal to petals, ± foliaceous, margins glandular-laciniate, abaxial surface slightly pubescent; stamens 20, anthers cream, pink, or red; styles 3–5. <b>Pomes</b> straw yellow to ruddy, suborbicular, 7–9 mm diam., hairy; sepals reflexed; pyrenes 3–5, dorsally grooved, sides usually shallowly eroded.</span><!--

-->{{Treatment/Body
|phenology=Flowers Apr–May; fruiting Sep–Oct.
|habitat=Brush, stream banks, borders of woods
|distribution=Ark.;Ga.;Mo.;N.C.;Tenn.;Va.
|discussion=<p><i>Crataegus ×vailiae</i>, with its similarities to <i>C. uniflora</i>, may be a hybrid between that species and a member of ser. Macracanthae, most likely <i>C. calpodendron</i>. Fruit color is recorded as in cultivation at Kew; B. F. Bush (on herbarium label) noted it as deep red and succulent on wild plants in Missouri. <i>Crataegus</i> conjungens appears to be a smaller form of <i>C. ×vailiae</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Crataegus ×vailiae
|authority=Crataegus ×vailiae Britton
|rank=species
|parent rank=genus
|synonyms=Crataegus conjungens;C. missouriensis;C. palliata
|basionyms=
|family=Rosaceae
|phenology=Flowers Apr–May; fruiting Sep–Oct.
|habitat=Brush, stream banks, borders of woods
|distribution=Ark.;Ga.;Mo.;N.C.;Tenn.;Va.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1897
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_1108.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Crataegus
|species=Crataegus ×vailiae
}}<!--

-->[[Category:Treatment]][[Category:Crataegus]]