Crataegus holmesiana |
Crataegus neobushii |
|
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aubépine de Holmes, Holmes' hawthorn |
Bush's hawthorn |
|
Habit | Shrubs or trees, 40–70(–100) dm, single-trunked. | Shrubs, 20–40 dm. |
Stems | twigs: new growth greenish to reddish, glabrous or pubescent; thorns on twigs recurved, often slender, 3–6 cm. |
twigs: new growth reddish young, glabrous, 1-year old brownish purple, older dark gray; thorns on twigs straight to reflexed, 2-years old dark, sometimes blackish, ± slender, 3–5 cm. |
Leaves | petiole length 30–35% blade, glabrate to densely hairy, often sparsely glandular; blade ± narrowly ovate, 6–9 cm, base cuneate or ± rounded, lobe apex acuminate, margins serrate or doubly serrate, teeth 2 mm, adaxial usually densely scabrous-pubescent young. |
petiole 1 mm wide, length 33–50% blade, glabrous, sometimes stipitate-glandular; blade trullate-ovate, 4–6 cm, length/width = 1.2–1.6, thin, base ± cuneate, lobes 4 per side, sinuses shallow, lobe apex acute, margins serrate except proximally, teeth 1 mm, gland-tipped, veins 4–6 per side, apex acute, abaxial surface glabrous, adaxial sparsely pubescent or glabrous young, glabrescent, veins persistently pilose. |
Inflorescences | branches usually pubescent, rarely glabrous or tomentose. |
3–7-flowered; branches glabrous; bracteoles initially abundant, often reddish, margins short-stipitate-glandular. |
Flowers | hypanthium usually pubescent; stamens 5–8(–10), anthers pink to rose-purple, sometimes crimson. |
18–22 mm diam.; hypanthium glabrous; sepal length not recorded, margins glandular-pectinate, at least distally; stamens 10, anthers rose; styles 3–5. |
Pomes | bright to deep red, ellipsoid to broadly pyriform, 12–14 mm, usually glabrous; sepals wide-spreading or erose. |
yellowish to orangish, suborbicular, 10 mm diam., glabrous, sometimes gland-dotted; sepals on collar, patent; pyrenes 3–5. |
2n | = 34, 51. |
|
Crataegus holmesiana |
Crataegus neobushii |
|
Phenology | Flowering May; fruiting Sep–Oct. | Flowering Apr; fruiting Sep–Oct. |
Habitat | Woodland edges, old pastures, fencerows | Open woodland understory |
Elevation | 10–300 m (0–1000 ft) | 20–300 m (100–1000 ft) |
Distribution |
CT; IL; IN; MA; ME; MI; MN; NH; NY; OH; PA; RI; VT; WI; ON; QC
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AL; AR; GA; MO; TN; VA |
Discussion | Crataegus holmesiana ranges from Wisconsin and Illinois through the southern Great Lakes region to southern Quebec and Maine, and to Pennsylvania; it is common in much of its range and should be expected in West Virginia. In its usual form, Crataegus holmesiana is readily distinguished from C. coccinea vars. coccinea and pringlei, though occasional intermediates occur. Crataegus robesoniana Sargent [C. pedicellata var. robesoniana (Sargent) E. J. Palmer] is one and perhaps C. amicta Ashe [C. holmesiana var. amicta (Ashe) E. J. Palmer] is another. Crataegus holmesiana is routinely interpreted as a typical member of ser. Coccineae, thus, a villous inflorescence taxon with serrate sepals. However, the protologue by Ashe (authentic material not located) states that the inflorescences are glabrous and the sepals are nearly entire, causing confusion with C. tenuifolia Britton (ser. Tenuifoliae). Current usage for C. holmesiana became fixed after Ashe erected a var. villosa with serrate sepals and villous inflorescences. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Crataegus neobushii is sparsely distributed from Missouri and Arkansas to Virginia and Georgia. In Crataegus neobushii, the length-width ratio of the leaves is variable; the more or less straight edge from near the widest part of the leaf along the lobe apices to the tip of the leaf, forming a trullate to deltate overall shape, is distinctive. The difference between C. neobushii and C. buckleyi may seem slight but the latter has a different leaf shape as indicated in the key. Specimens of C. neobushii with leaves shallowly incised may be hard to distinguish from C. rubella. Crataegus neobushii is similar to the inadequately studied C. cuprea Sargent (a prior name), and this requires resolution. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 560. | FNA vol. 9, p. 589. |
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Coccineae | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Intricatae |
Sibling taxa | ||
Synonyms | C. anomala, C. eamesii, C. elongata, C. holmesiana var. villipes, C. pura, C. sertata, C. tardipes | C. intricata var. neobushii, C. leioclada |
Name authority | Ashe: J. Elisha Mitchell Sci. Soc. 16: 78. (1900) | Sargent: Trees & Shrubs 2: 9, plate 105. (1907) |
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