Difference between revisions of "Crataegus (sect. Coccineae) ser. Madrenses"
Monogr. N. Mex. Crataegus, 14. 1997.
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|distribution=North America;Mexico;introduced in Europe. | |distribution=North America;Mexico;introduced in Europe. | ||
|discussion=<p>Species 2 (1 in the flora).</p><!-- | |discussion=<p>Species 2 (1 in the flora).</p><!-- | ||
| − | --><p>The two species of ser. Madrenses occur in northeastern Mexico. Crataegus tracyi extends to west-central Texas; C. aurescens J. B. Phipps is endemic to northeastern Mexico. Species of ser. Madrenses resemble those of ser. Crus-galli but have more styles and pyrenes (3–5) than is usual in the latter series, as well as strongly glandular-serrate to glandular-laciniate sepal margins.</p> | + | --><p>The two species of ser. Madrenses occur in northeastern Mexico. <i>Crataegus tracyi</i> extends to west-central Texas; C. aurescens J. B. Phipps is endemic to northeastern Mexico. Species of ser. Madrenses resemble those of ser. Crus-galli but have more styles and pyrenes (3–5) than is usual in the latter series, as well as strongly glandular-serrate to glandular-laciniate sepal margins.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Crataegus (sect. Coccineae) ser. Madrenses | name=Crataegus (sect. Coccineae) ser. Madrenses | ||
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|authority=J. B. Phipps | |authority=J. B. Phipps | ||
|rank=series | |rank=series | ||
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|publication year=1997 | |publication year=1997 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_927.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Latest revision as of 00:00, 6 November 2020
Shrubs or trees, 40–80 dm, main trunk dominant. Stems: trunk bark not recorded; twigs: new growth pubescent at least initially, 1-year old brown, older dull gray; thorns on twigs numerous, straight to slightly recurved, 2-years old dark gray, ± shiny, ± slender, 2.5–5 cm. Leaves: petiole length 10–25% blade, pubescent, glandularity not recorded; blade broadly elliptic or elliptic-rhombic, rarely narrowly oblanceolate, 3–4 cm, subcoriaceous, base cuneate, lobes 0 or sinuses shallow, lobe apex acute, margins serrate except proximally, venation craspedodromous, veins 5 or 6 per side, apex acute to obtuse, abaxial surface glabrate except on veins, adaxial appressed-pilose, usually persisting. Inflorescences 6–15-flowered; branches canescent; bracteoles caducous, linear, membranous, margins stipitate-glandular. Flowers 15–17 mm diam.; hypanthium tomentose especially proximally; sepals narrowly triangular, 2/3 petal length, margins glandular-serrate to glandular-pectinate; stamens 10–20, anthers pink; styles 3–5. Pomes bright red, suborbicular, 8–10(–20) mm diam., pubescent; flesh not recorded; sepals patent-reflexed; pyrenes 3.
Distribution
North America, Mexico, introduced in Europe.
Discussion
Species 2 (1 in the flora).
The two species of ser. Madrenses occur in northeastern Mexico. Crataegus tracyi extends to west-central Texas; C. aurescens J. B. Phipps is endemic to northeastern Mexico. Species of ser. Madrenses resemble those of ser. Crus-galli but have more styles and pyrenes (3–5) than is usual in the latter series, as well as strongly glandular-serrate to glandular-laciniate sepal margins.
Selected References
None.