Crataegus stonei

Sargent

Rhodora 5: 62. 1903.

Common names: Stone’s hawthorn
Conservation concernEndemic
Synonyms: Crataegus biltmoreana var. stonei (Sargent) Kruschke
Treatment appears in FNA Volume 9. Treatment on page 591. Mentioned on page 586.
Revision as of 22:53, 5 November 2020 by imported>Volume Importer
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Shrubs, 10–20 dm. Stems: twigs: new growth reddish green, glabrous or villous, 1-year old dull reddish brown, eventually gray; thorns on twigs ± straight, 2-years old blackish, ultimately gray, ± slender, 4–6 cm. Leaves: petiole length 30–40% blade, winged distally, villous, glandular; blade narrowly ovate, 7–8 cm, base cuneate, lobes 0 or 1–3 per side, sinuses shallow, lobe apex acute, margins serrate, teeth gland-tipped, veins 4 or 5 per side, apex acuminate, abaxial surface sparsely villous along veins, adaxial sparsely villous. Inflorescences 4–6-flowered; branches villous; bracteoles not seen. Flowers 18–20 mm diam.; hypanthium densely pubescent; sepal length not recorded, margins coarsely glandular-serrate, acuminate, abaxially pubescent; stamens 5–10, anthers pink; styles 3 or 4. Pomes dull yellow to russet, broadly ellipsoid, 12–14 mm diam., hairy; sepals on collar, ± reflexed; pyrenes 3 or 4.


Phenology: Flowering late May–early Jun; fruiting Sep–Oct.
Habitat: Woods, openings
Elevation: 20–300 m

Discussion

Of conservation concern.

Crataegus stonei is another species related to C. biltmoreana, from which it differs mainly in its pink anthers, proportionately narrower and more elongate leaves, and lower stature.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus stonei"
James B. Phipps +
Sargent +
Intricatae +
Stone’s hawthorn +
Mass. +, N.Y. +  and Pa. +
20–300 m +
Woods, openings +
Flowering late May–early Jun +  and fruiting Sep–Oct. +
Conservation concern +  and Endemic +
Crataegus biltmoreana var. stonei +
Crataegus stonei +
Crataegus (sect. Coccineae) ser. Intricatae +
species +