Crataegus ×fretalis

Crataegus ×fretalis Sargent

Rhodora 5: 112. 1903.

Endemic
Treatment appears in FNA Volume 9. Treatment on page 638. Mentioned on page 561, 562.

Shrubs or trees, 60–70 dm. Stems: trunk bark grayish to grayish brown, checked; twigs straight or slightly flexuous, new growth green, tinged red, at end of 1st year bright reddish-brown, lustrous, 1–2-years old darker redbrown; thorns on twigs few, ± straight, 1-year old shiny redbrown, stout, 2–4 cm. Leaves deciduous; petiole slender, length 33–60% blade, glabrous, minutely red-glandular; blade yellow-green, ovate or oval, 5–8 × 4.5–7 cm, thin but firm, base rounded, lobes 3–5 per side, small, lobe apex acute to acuminate (or larger and sometimes with proximal lobes enlarged and deeply cleft), margins sharply serrate, venation craspedodromous, veins 4–6 per side, apex acute to acuminate, abaxial surface glabrous, adaxial short-appressed-pubescent young, glabrescent. Inflorescences 5–12-flowered; branches glabrous; bracteoles caducous, linear, membranous, margins glandular. Flowers 20 mm diam.; hypanthium glabrous; sepals lanceolate, margins coarsely glandular-serrate; stamens 5, rarely 6–8, anthers red, small; styles 3. Pomes bright red, oblong or obovate, 10–12 × 9–10 mm, glabrous; flesh slightly succulent; sepals often lost, ± erect, incurved; pyrenes 3, dorsally grooved, sides plane.


Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Brush, open woods, rocky pastures
Elevation: 20–100 m

Discussion

Crataegus ×fretalis is probably a hybrid between C. macrosperma and a species of ser. Coccineae. Crataegus tortilis Ashe from northern Illinois and Wisconsin is similar but has 20 stamens and usually five pyrenes. Crataegus vittata Ashe, from Pennsylvania, is also similar, but has truncate leaf bases. Crataegus knieskerniana Sargent is similar in foliage, flowers, and fruit, but it has pyrenes depressed or pitted on the inner faces and occurred near East Herkimer, New York.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus ×fretalis"
glabrescent +  and short-appressed-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
Crataegus ×fretalis Sargent +
compound +  and simple +
opposite +  and alternate +
rounded +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
yellow-green +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oval +  and ovate +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
thin +, 4.5cm +  and 7cm +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Conn. +, Maine +  and Mass. +
not +  and aggregated +
20–100 m +
bright reddish-brown +
succulent +
20 cm200 mm <br />0.2 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 />) +
darker redbrown +, tinged red +  and green +
old +  and new +
tomentose +  and glabrous +
Brush, open woods, rocky pastures +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glandular-serrate +  and serrate +
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 +
Flowering May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
bright red +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
obovate +  and oblong +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not arillate +
persistent +
free +  and distinct +
incurved +  and erect +
lanceolate +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus ×fretalis +
Crataegus +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
straight +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
flexuous +  and straight +
4 +  and 6 +
tree +  and shrub +