Crataegus holmesiana

Ashe

J. Elisha Mitchell Sci. Soc. 16: 78. 1900.

Common names: Holmes’ hawthorn aubépine de Holmes
Endemic
Synonyms: Crataegus anomala Sargent C. eamesii Sargent C. elongata Sargent C. holmesiana var. villipes Ashe C. pura Sargent C. sertata Sargent C. tardipes
Treatment appears in FNA Volume 9. Treatment on page 560. Mentioned on page 558, 561, 563.

Shrubs or trees, 40–70 (–100) dm, single-trunked. Stems: twigs: new growth greenish to reddish, glabrous or pubescent; thorns on twigs recurved, often slender, 3–6 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. Inflorescences: branches usually pubescent, rarely glabrous or tomentose. Flowers: hypanthium usually pubescent; stamens 5–8 (–10), anthers pink to rose-purple, sometimes crimson. Pomes bright to deep red, ellipsoid to broadly pyriform, 12–14 mm, usually glabrous; sepals widespreading or erose. 2n = 34, 51.


Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Woodland edges, old pastures, fencerows
Elevation: 10–300 m

Distribution

V9 951-distribution-map.jpg

Ont., Que., Conn., Ill., Ind., Maine, Mass., Mich., Minn., N.H., N.Y., Ohio, Pa., R.I., Vt., Wis.

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.

Selected References

None.

Lower Taxa

None.

"glabrate" is not a number.

... more about "Crataegus holmesiana"
scabrous-pubescent +
appressed-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
crimson +, pink +  and rose-purple +
James B. Phipps +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
rounded +  and cuneate +
Crataegus sect. Coccineae +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
bright green +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
tomentose +, glabrous +  and pubescent +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Holmes’ hawthorn +  and aubépine de Holmes +
Ont. +, Que. +, Conn. +, Ill. +, Ind. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.Y. +, Ohio +, Pa. +, R.I. +, Vt. +  and Wis. +
not +  and aggregated +
10–300 m +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
yellow +  and red or purplish +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
greenish +  and reddish +
pubescent +  and glabrous +
Woodland edges, old pastures, fencerows +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
short-stipitate-glandular +
serrate +  and crenate +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
elliptic +  and circular +
0 (?) +  and 4 (?) +
free +  and distinct +
post-mature +
at-least +  and eglandular +
Flowering May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
ellipsoid +  and broadly pyriform +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
J. Elisha Mitchell Sci. Soc. +
not arillate +
persistent +
free +  and distinct +
widespreading +
triangular +
nonaccrescent +
1-50-flowered +  and few-leaved +
shallow +  and more or less deep +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus anomala +, C. eamesii +, C. elongata +, C. holmesiana var. villipes +, C. pura +, C. sertata +  and C. tardipes +
Crataegus holmesiana +
Crataegus (sect. Coccineae) ser. Coccineae +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
brown +  and dark blackish +
straight +
slender +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
craspedodromous +
2 cm20 mm <br />0.02 m <br /> (?) +
inconspicuous +
exfoliating +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
few +  and numerous +
5 +  and 7 +
tree +  and shrub +