Crataegus margarettae var. brownii

(Britton) Sargent

3: 199. 1922.

Endemic
Basionym: Crataegus brownii Britton 1: 447. 1900
Treatment appears in FNA Volume 9. Treatment on page 602.

Leaves: blade broadly elliptic, obovate to ovate, or suborbiculate, 3–5 cm, base broadly cuneate, lobe sinuses shallow, apex obtuse to subacute. Flowers 8–10 mm diam. Pomes ellipsoid.


Phenology: Flowering Apr–May; fruiting Sep–Oct.
Habitat: Hedgerows, thickets, wood margins, dry areas
Elevation: 100–300 m

Discussion

Variety brownii is sporadic in occurrence. It is notable for having small flowers. Reports from Indiana and West Virginia need validation.

Selected References

None.

Lower Taxa

None.

"thin" is not a number."entire" is not a number."glabrous" is not a number."adnate" is not a number."dm" is not declared as a valid unit of measurement for this property.

glabrescent +  and appressed-short-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
glabrous +  and pubescent +
obtuse;subacute +
James B. Phipps +
(Britton) Sargent +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Crataegus brownii +
lance-elliptic +  and elliptic +
6 cm60 mm <br />0.06 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
green +  and bluish green +
obovate +  and ovate or suborbiculate +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
subcoriaceous +
elliptic +  and linear +
pubescent +  and glabrous +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ky. +, Mo. +  and Va. +
not +  and aggregated +
100–300 m +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 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 +, brownish gray +  and brownish tan +
older +, old +  and new +
dull +  and shiny +
Hedgerows, thickets, wood margins, dry areas +
constricted +
crassinucellate +
stipitate-glandular +
deciduous +
glandular-serrate +  and serrate +
subentire +, entire +  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 (?) +
pale paper brown +
free +  and distinct +
post-mature +
pubescent +  and glabrous +
Flowering Apr–May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
burgundy +, dull +, red +, orange-red +  and yellow +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
ellipsoid +
J. Elisha Mitchell Sci. Soc. +
nonaccrescent +
not arillate +
persistent +
free +  and distinct +
triangular +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1-50-flowered +  and few-leaved +
concave +  and plane +
deep +  and shallow +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus margarettae var. brownii +
Crataegus margarettae +
variety +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
straight +
slender +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
few +  and numerous +
4 (?) +  and 3 (?) +