Crataegus lumaria

Ashe

J. Elisha Mitchell Sci. Soc. 19: 25. 1903.

Endemic
Synonyms: Crataegus dodgei var. lumaria (Ashe) Sargent C. jackii Sargent
Treatment appears in FNA Volume 9. Treatment on page 604. Mentioned on page 596, 602.

Shrubs or trees, 50 dm. Stems: twigs: new growth often ± reddish young, glabrous, 1-year old gray-brown, older dull gray; thorns on twigs ± 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, broadly rhombic to rhombic-ovate, or narrowly ovate to broadly elliptic, 2–4 (–5) cm, thin, base rounded to cuneate, lobes 3 or 4 per side, sinuses shallow, lobe apex acute, margins serrate, veins 4–6 per side, apex acute to obtuse, abaxial surface glabrous, adaxial glabrate young, soon glabrescent. Inflorescences 6–15-flowered; branches pilose; bracteoles usually hyaline, linear, membranous, margins of proximal bracteoles usually stipitate-glandular. Flowers 13–18 mm diam.; hypanthium glabrous; sepals narrowly triangular, 5 mm, margins entire, glandular; stamens 10, anthers ivory; styles 2 or 3. Pomes yellowish, dull orange, or reddish, suborbicular, 7–12 mm diam., glabrous; sepals reflexed; pyrenes 2 or 3.2n = 68.


Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Brush, fallow pastures
Elevation: 30–300 m

Distribution

V9 1039-distribution-map.jpg

Ont., Que., Mich., N.Y., Wis.

Discussion

Crataegus lumaria is sporadic through much of its range; it is locally common in southern Ontario.

Crataegus lumaria is much like a hairy-inflorescence form of C. dodgei. The disjunct C. jackii is a form with particularly hairy, suborbiculate leaves and larger flowers (to 20 mm).

Selected References

None.

Lower Taxa

None.
... more about "Crataegus lumaria"
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 +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
broadly rhombic +  and rhombic-ovate or narrowly ovate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
elliptic +  and linear +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ont. +, Que. +, Mich. +, N.Y. +  and Wis. +
not +  and aggregated +
30–300 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 +
Brush, fallow pastures +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
stipitate-glandular +
deciduous +
entire +  and serrate +
stipitate-glandular +
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 May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
reddish +, orange +, dull +  and yellowish +
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 +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus dodgei var. lumaria +  and C. jackii +
Crataegus lumaria +
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 +