Crataegus dodgei

Ashe

J. Elisha Mitchell Sci. Soc. 19: 26. 1903.

Common names: Dodge hawthorn
EndemicIllustrated
Synonyms: Crataegus chrysocarpa var. dodgei (Ashe) E. J. Palmer C. crassifolia Sargent C. delosii Sargent C. dodgei var. flavida (Sargent) P. G. Smith & J. B. Phipps C. dodgei var. rotundata (Sargent) Kruschke C. flavida Sargent C. gravesii C. rotundata
Treatment appears in FNA Volume 9. Treatment on page 603. Mentioned on page 528, 594, 595, 600, 602, 604.

Shrubs or trees, 50 dm. Stems: twigs: new growth often ± reddish young, glabrous, 1-year old gray-brown, older dull gray; thorns on twigs few to plentiful, straight to ± recurved, 1-year old shiny, dark-brown or black, older gray, slender, 2.5–7 cm. Leaves: petiole length 40–60% blade, glabrous, sparsely to densely minutely glandular; blade green, suborbiculate, ± ovate, broadly rhombic to rhombic-ovate, sometimes broadly elliptic, 2–5 cm, thin, base rounded to cuneate, lobes 0 or 1–4 per side, sinuses shallow to moderately deep, lobe apex acute to obtuse, margins crenate-serrate to serrate, veins 4–6 per side, apex subacute to obtuse, abaxial surface glabrous, adaxial glabrate young, soon glabrescent. Inflorescences 6–15-flowered; branches glabrous; bracteoles linear, membranous, margins glandular, larger proximally stipitate-glandular. Flowers 13–18 mm diam.; hypanthium glabrous; sepals narrowly triangular, 5 mm, margins entire or ± glandular-denticulate; stamens 10, anthers ivory; styles 2 or 3. Pomes yellow to yellow-orange, dull orange, or ruddy to red, suborbicular, 7–12 mm diam., glabrous; sepals reflexed; pyrenes 2 or 3.2n = 51, 68.


Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Thickets, successional fields, brush
Elevation: 0–900 m

Distribution

V9 1038-distribution-map.jpg

Ont., Que., Conn., Ill., Ind., Mass., Mich., N.Y., N.C., Ohio, Pa., Va., W.Va., Wis.

Discussion

Crataegus dodgei ranges from Wisconsin and northern Illinois through the southern Great Lakes to Connecticut, and south to West Virginia and the North Carolina Blue Ridge. The southern limits are poorly understood.

Crataegus dodgei is unusually variable in leaf shape, and also variable in plant size, thorn length, and bracteole glandularity. The typical form resembles a ten-stamen C. margarettae, though often with larger and more veiny leaves. It occurs throughout the range of C. dodgei and is usually easily recognizable. An opposite tendency is found in the C. flavida form, which is also common but where the plants are smaller with usually finer thorns and particularly small, usually acutely lobed leaves. Rather scarce forms with larger, proportionately broad, often suborbiculate leaves and obtuse lobes represent the C. delosii form. Still other variants are known.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus dodgei"
glabrescent +  and glabrate +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
glabrous +  and pubescent +
James B. Phipps +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
rounded +  and cuneate +
Crataegus sect. Rotundifoliae +
6 cm60 mm <br />0.06 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
broadly rhombic +  and rhombic-ovate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
elliptic +  and linear +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Dodge hawthorn +
Ont. +, Que. +, Conn. +, Ill. +, Ind. +, Mass. +, Mich. +, N.Y. +, N.C. +, Ohio +, Pa. +, Va. +, W.Va. +  and Wis. +
not +  and aggregated +
0–900 m +
1.3 cm13 mm <br />0.013 m <br /> (1.8 cm18 mm <br />0.018 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 />) +
gray +, gray-brown +  and reddish +
older +, old +, young +  and new +
Thickets, successional fields, brush +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
stipitate-glandular +
deciduous +
glandular-serrate +  and serrate +
stipitate-glandular +
glandular-denticulate +  and entire +
crenate-serrate to serrate +
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 +
pubescent +  and glabrous +
Flowering Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
yellow +  and yellow-orange dull orange or ruddy +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
suborbicular +
J. Elisha Mitchell Sci. Soc. +
nonaccrescent +
not arillate +
persistent +
free +  and distinct +
triangular +
5 cm50 mm <br />0.05 m <br /> (?) +
1-50-flowered +  and few-leaved +
concave +  and plane +
shallow +  and moderately deep +
Endemic +  and Illustrated +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus chrysocarpa var. dodgei +, C. crassifolia +, C. delosii +, C. dodgei var. flavida +, C. dodgei var. rotundata +, C. flavida +, C. gravesii +  and C. rotundata +
Crataegus dodgei +
Crataegus (sect. Coccineae) ser. Rotundifoliae +
species +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
gray +, black +  and dark-brown +
straight +
older +  and old +
slender +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
4 +  and 6 +
tree +  and shrub +