Difference between revisions of "Crataegus margaretta"
J. Elisha Mitchell Sci. Soc. 16: 72. 1900.
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GeoffLevin (talk | contribs) m (Specific epithet corrected from "margarettae" to "margaretta", the original spelling.) |
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{{Treatment/ID | {{Treatment/ID | ||
| − | |accepted_name=Crataegus | + | |accepted_name=Crataegus margaretta |
|accepted_authority=Ashe | |accepted_authority=Ashe | ||
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
| Line 14: | Line 14: | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
| − | |hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Crataegus;Crataegus sect. Coccineae;Crataegus (sect. Coccineae) ser. Rotundifoliae;Crataegus | + | |hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Crataegus;Crataegus sect. Coccineae;Crataegus (sect. Coccineae) ser. Rotundifoliae;Crataegus margaretta |
| − | |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>section</small>[[Crataegus sect. Coccineae]]</div><div class="higher-taxon"><small>series</small>[[Crataegus (sect. Coccineae) ser. Rotundifoliae]]</div><div class="higher-taxon"><small>species</small>[[Crataegus | + | |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>section</small>[[Crataegus sect. Coccineae]]</div><div class="higher-taxon"><small>series</small>[[Crataegus (sect. Coccineae) ser. Rotundifoliae]]</div><div class="higher-taxon"><small>species</small>[[Crataegus margaretta]]</div></div> |
|volume=Volume 9 | |volume=Volume 9 | ||
|mention_page=page 593, 594, 595, 602, 604, 639, 642 | |mention_page=page 593, 594, 595, 602, 604, 639, 642 | ||
| Line 26: | Line 26: | ||
|distribution=Ont.;Ill.;Ind.;Iowa;Ky.;Mich.;Mo.;Ohio;Pa.;Va.;W.Va.;Wis. | |distribution=Ont.;Ill.;Ind.;Iowa;Ky.;Mich.;Mo.;Ohio;Pa.;Va.;W.Va.;Wis. | ||
|discussion=<p>Varieties 4 (4 in the flora).</p><!-- | |discussion=<p>Varieties 4 (4 in the flora).</p><!-- | ||
| − | --><p><i>Crataegus | + | --><p><i>Crataegus margaretta</i> is widespread and often common, extending east from Missouri and Iowa to Wisconsin, southern Michigan, southwestern Ontario (where it was always rare and is now perhaps lost), western Pennsylvania, and western Virginia.</p><!-- |
| − | --><p>Leaves of <i>Crataegus | + | --><p>Leaves of <i>Crataegus margaretta</i> are often somewhat blue-green at maturity, and the thorns are usually finer than found on its close relatives <i>C. dodgei</i> and <i>C. lumaria</i>. The variation in fruit color (yellow to burgundy) and leaf shape (suborbiculate to narrowly elliptic) is considerable; there are four varieties but only the typical one is common. The other varieties are extreme forms of which perhaps only <i></i>var.<i> angustifolia</i> has a genetic basis; <i></i>var.<i> brownii</i> and <i></i>var.<i> meiophylla</i> are possibly products of dry seasons or situations.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|1 | |1 | ||
|Leaf blades proportionately narrow, lance-elliptic or oblong-lanceolate, bases cuneate, lobes (0 or obscure), sinuses shallow, apices acute. | |Leaf blades proportionately narrow, lance-elliptic or oblong-lanceolate, bases cuneate, lobes (0 or obscure), sinuses shallow, apices acute. | ||
| − | |[[Crataegus | + | |[[Crataegus margaretta var. angustifolia|Crataegus margaretta var. angustifolia]] |
|-id=key-0-1 | |-id=key-0-1 | ||
|1 | |1 | ||
| Line 48: | Line 48: | ||
|2 | |2 | ||
|Flowers 8–10 mm diam.; pomes ellipsoid. | |Flowers 8–10 mm diam.; pomes ellipsoid. | ||
| − | |[[Crataegus | + | |[[Crataegus margaretta var. brownii|Crataegus margaretta var. brownii]] |
|-id=key-0-2 | |-id=key-0-2 | ||
|2 | |2 | ||
| Line 56: | Line 56: | ||
|3 | |3 | ||
|Leaf blades 3–5 cm, broadly elliptic to suborbiculate. | |Leaf blades 3–5 cm, broadly elliptic to suborbiculate. | ||
| − | |[[Crataegus | + | |[[Crataegus margaretta var. margaretta|Crataegus margarettae var. margarettae]] |
|-id=key-0-3 | |-id=key-0-3 | ||
|3 | |3 | ||
|Leaf blades less than 2.5 cm, round. | |Leaf blades less than 2.5 cm, round. | ||
| − | |[[Crataegus | + | |[[Crataegus margaretta var. meiophylla|Crataegus margaretta var. meiophylla]] |
|} | |} | ||
</div></div><!-- | </div></div><!-- | ||
-->{{#Taxon: | -->{{#Taxon: | ||
| − | name=Crataegus | + | name=Crataegus margaretta |
|authority=Ashe | |authority=Ashe | ||
|rank=species | |rank=species | ||
| Line 77: | Line 77: | ||
|publication year=1900 | |publication year=1900 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_1033.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
| Line 83: | Line 83: | ||
|section=Crataegus sect. Coccineae | |section=Crataegus sect. Coccineae | ||
|series=Crataegus (sect. Coccineae) ser. Rotundifoliae | |series=Crataegus (sect. Coccineae) ser. Rotundifoliae | ||
| − | |species=Crataegus | + | |species=Crataegus margaretta |
}}<!-- | }}<!-- | ||
| Line 90: | Line 90: | ||
[[Category:Treatment]] | [[Category:Treatment]] | ||
[[Category:Crataegus (sect. Coccineae) ser. Rotundifoliae]] | [[Category:Crataegus (sect. Coccineae) ser. Rotundifoliae]] | ||
| − | [[Category: | + | [[Category:Revised Since Print]] |
Latest revision as of 17:10, 16 February 2025
Shrubs, 60–70 dm. Stems: twigs: new growth becoming shiny, brownish tan by fall in 1st year, glabrous, 1-year old brownish gray, older dull gray; thorns on twigs few to numerous, straight to recurved, 1-year old blackish, ± shiny, slender, 2.5–5 cm. Leaves: petiole length 30–60% blade, glabrous, usually with small glands at first, becoming eglandular, glands ± caducous, small; blade green to bluish green, suborbiculate, ovate, or obovate, rarely elliptic-rhombic to elliptic or lance-elliptic, 3–5 cm (less than 2.5 in var. meiophylla), subcoriaceous, base cuneate to broadly cuneate, lobes 1–3(or 4) per side, sinuses usually shallow, sometimes deep, lobe apex obtuse to angled, margins crenate to finely, sharply serrate, veins 3 or 4 per side, apex subacute to obtuse, abaxial surface glabrous, adaxial ± sparsely appressed-short-pubescent young, glabrescent. Inflorescences 6–15-flowered; branches glabrous, rarely pubescent; bracteoles late caducous, linear, subherbaceous, margins glandular. Flowers (8–)12–17 mm diam.; hypanthium glabrous; sepals narrowly triangular, 4–5 mm, margins entire or subentire, glandular, abaxially glabrous; stamens 20, anthers ivory; styles 2 or 3(or 4). Pomes yellow, orange-red, red, or dull burgundy, broadly ellipsoid to suborbicular, 7–12 mm diam., glabrous; sepals reflexed, often on collar; pyrenes 2–4. 2n = 34.
Distribution
Ont., Ill., Ind., Iowa, Ky., Mich., Mo., Ohio, Pa., Va., W.Va., Wis.
Discussion
Varieties 4 (4 in the flora).
Crataegus margaretta is widespread and often common, extending east from Missouri and Iowa to Wisconsin, southern Michigan, southwestern Ontario (where it was always rare and is now perhaps lost), western Pennsylvania, and western Virginia.
Leaves of Crataegus margaretta are often somewhat blue-green at maturity, and the thorns are usually finer than found on its close relatives C. dodgei and C. lumaria. The variation in fruit color (yellow to burgundy) and leaf shape (suborbiculate to narrowly elliptic) is considerable; there are four varieties but only the typical one is common. The other varieties are extreme forms of which perhaps only var. angustifolia has a genetic basis; var. brownii and var. meiophylla are possibly products of dry seasons or situations.
Selected References
None.
Lower Taxa
Key
| 1 | Leaf blades proportionately narrow, lance-elliptic or oblong-lanceolate, bases cuneate, lobes (0 or obscure), sinuses shallow, apices acute. | Crataegus margaretta var. angustifolia |
| 1 | Leaf blades proportionately wide, broadly elliptic, obovate to ovate, suborbiculate, or round, bases broadly cuneate, lobe sinuses ± shallow to ± deep, apices obtuse to subacute | > 2 |
| 2 | Flowers 8–10 mm diam.; pomes ellipsoid. | Crataegus margaretta var. brownii |
| 2 | Flowers 12–17 mm diam.; pomes broadly ellipsoid to suborbicular | > 3 |
| 3 | Leaf blades 3–5 cm, broadly elliptic to suborbiculate. | Crataegus margarettae var. margarettae |
| 3 | Leaf blades less than 2.5 cm, round. | Crataegus margaretta var. meiophylla |