Difference between revisions of "Crataegus ×incaedua"
Trees & Shrubs 2: 3, plate 102. 1907.
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|elevation=150–200 m | |elevation=150–200 m | ||
|distribution=Ark.;Ind.;Mo. | |distribution=Ark.;Ind.;Mo. | ||
| − | |discussion=<p>Crataegus ×incaedua is similar to C. collina var. sordida except for the cream anthers and two or three styles and pyrenes; it probably is a hybrid of C. collina with C. calpodendron, according to E. J. Palmer (1952).</p> | + | |discussion=<p><i>Crataegus ×incaedua</i> is similar to <i>C. collina </i>var.<i> sordida</i> except for the cream anthers and two or three styles and pyrenes; it probably is a hybrid of <i>C. collina</i> with <i>C. calpodendron</i>, according to E. J. Palmer (1952).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1907 | |publication year=1907 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V9/V9_1098.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Revision as of 19:14, 18 September 2019
Shrubs or trees, 50–70 dm. Stems: twigs: new growth pubescent, 1-year old light gray-brown, older grayish; thorns on twigs numerous, 1-year old bright chestnut brown, slender, 4–7 cm. Leaves: petiole length 20% blade, villous early, glabrescent; blade narrowly obovate, 5–6 cm, base narrowly cuneate, lobes 0, margins serrulate, venation camptodromous, veins 4–6 per side, apex acute, abaxial surface veins villous, adaxial soft-white-hairy young, glabrescent. Inflorescences 12–20-flowered; branches puberulent; bracteoles ± persistent, numerous, very narrow, membranous, margins glandular. Flowers 14–15 mm diam.; hypanthium densely villous; sepals narrowly triangular, margins glandular-serrate; stamens 10–15, anthers cream; styles 2 or 3. Pomes yellowish red, suborbicular, 9–10 mm diam., punctate, glabrous; sepals narrow, ± reflexed; pyrenes 2, dorsally grooved, sides plane.
Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Gravelly stream beds
Elevation: 150–200 m
Distribution
Ark., Ind., Mo.
Discussion
Crataegus ×incaedua is similar to C. collina var. sordida except for the cream anthers and two or three styles and pyrenes; it probably is a hybrid of C. collina with C. calpodendron, according to E. J. Palmer (1952).
Selected References
None.