Difference between revisions of "Crataegus prona"

Ashe

J. Elisha Mitchell Sci. Soc. 19: 17. 1903.

Endemic
Synonyms: Crataegus gravis Ashe
Treatment appears in FNA Volume 9. Treatment on page 570. Mentioned on page 568.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_969.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_969.xml
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|tribe=Rosaceae tribe Gillenieae
 
|tribe=Rosaceae tribe Gillenieae

Latest revision as of 23:00, 5 November 2020

Shrubs or trees, 60 dm. Stems: twigs: new growth reddish green, glabrous, 1-year old reddish brown, sometimes very dark, older mid gray; thorns on twigs recurved, 2-years old dark blackish red, ± shiny, ± slender, 3–5 cm. Leaves: petiole 2–4 cm, glabrous, eglandular or sparsely glandular; blade deltate-ovate to ovate, 4–7 cm length/width = 1.1–1.2, subcoriaceous, base broadly rounded to ± cuneate, lobes 3–5 per side, sinuses usually shallow, lobe apex acute, margins strongly serrate, veins 5 or 6 per side, apex acute to acuminate, surfaces glabrous except adaxial appressed-hairy young. Inflorescences 5–12-flowered; branches glabrous; bracteoles few, margins glandular. Flowers 16–18 mm diam.; hypanthium glabrous; sepals narrowly triangular, 5–6 mm, margins subentire, abaxially glabrous; stamens 6–10, anthers red to purple; styles 3 or 4. Pomes reddish orange to bright red, suborbicular to oblong, 8–11 mm diam.; sepals patent-reflexed or commonly erose; pyrenes 3 or 4, dorsally grooved.


Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Brush
Elevation: 100–300 m

Distribution

V9 969-distribution-map.jpg

Ont., Ind., Mich., N.Y., Pa., Wis.

Discussion

Crataegus prona ranges from Wisconsin and Indiana through Michigan to New York and Pennsylvania.

Crataegus prona is similar to C. populnea but with proportionately wider leaves and narrow pomes. When better known, it may prove the same as C. populnea. Crataegus gravis is a form with more oblong fruit and smaller leaves with sharper lobes.

Selected References

None.

Lower Taxa

None.