Crataegus collina var. collina

Endemic
Synonyms: Crataegus sucida Sargent C. vicina Sargent
Treatment appears in FNA Volume 9. Treatment on page 544. Mentioned on page 545.

Leaf-blades rhombic-obovate or broadly rhombic-elliptic to narrowly obovate, 3–6 cm, 1/3–1/2 full grown at anthesis, length/width = 1.4–1.7, membranous (young) to chartaceous or subcoriaceous (mature), lobes 0, or 1 or 2 per side, max LII 10%, lobe apex acute, margins crenate to serrate, teeth 0.5–0.8 mm, apex subacute to obtuse, adaxial surface matte or lustrous, densely short-pubescent young. Inflorescence branches hairy. Flowers 14–18 mm diam.; stamens 20, anthers white or cream.


Phenology: Flowering Apr–May; fruiting Sep–Oct.
Habitat: Pastures, fencerows, scrub, open woodlands
Elevation: 10–500 m

Distribution

V9 916-distribution-map.jpg

Ala., Ark., Ga., Ill., Ind., Kans., Ky., La., Miss., Mo., N.C., S.C., Tenn., Va.

Discussion

Crataegus collina is recorded from Oklahoma without variety, probably var. collina.

Variety collina comprises three forms. The two predominant forms are thin-leaved. The first, most resembling the type, has leaves more obovate with lobes absent and marginal teeth smaller and obtuse; the second has narrower leaves, more like var. succincta but somewhat broader, with 2 or 3 acute lobes per side and marginal teeth sharper. Both are widespread. The third, C. sucida, from Missouri, is distinguished by leaves that are more or less obovate, subcoriaceous, with lobes absent, sharply and evenly toothed with teeth 1 mm.

Selected References

None.

Lower Taxa

None.
68 +, 51 +  and 34 +
scabrous-pubescent +
lustrous +  and matte +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cream +  and white +
James B. Phipps +
Chapman +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
tapering +
Crataegus sect. Punctatae +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
broadly rhombic-elliptic +  and narrowly obovate +
5 cm50 mm <br />0.05 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
rhombic-elliptic +, obtrullate +, obovate +, elliptic +  and rhombic-obovate +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
appressed-pubescent +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ala. +, Ark. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Miss. +, Mo. +, N.C. +, S.C. +, Tenn. +  and Va. +
not +  and aggregated +
10–500 m +
1.4 cm14 mm <br />0.014 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 +  and grayish brown +
older +, old +  and new +
Pastures, fencerows, scrub, open woodlands +
pubescent +  and glabrous +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
short-stipitate-glandular +
crenate +  and serrate +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
eglandular +  and unwinged +
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 +
1 cm10 mm <br />0.01 m <br /> (?) +
Flowering Apr–May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
ruddy +  and deep red +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
orbicular +
Fl. S.E. U.S. ed. +
not arillate +
persistent +
free +  and distinct +
patent-reflexed +
triangular +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus sucida +  and C. vicina +
Crataegus collina var. collina +
Crataegus collina +
variety +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
straight +
slender +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
craspedodromous +  and gland-tipped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
inconspicuous +
less erect +  and oblique +
1 +  and several +
determinate +
few +  and numerous +
not +  and pubescent +
5 +  and 7 +