Crataegus venusta

Beadle

Bot. Gaz. 30: 338. 1900.

Endemic
Treatment appears in FNA Volume 9. Treatment on page 583. Mentioned on page 581, 584.

Shrubs or trees, 40–70 dm. Stems: twigs: new growth reddish green, 1-year old usually deep chestnut; thorns on twigs ± straight, 2-years old very dark, usually slender, 2–5 cm. Leaves: petiole length 25–30% blade, sparsely sessile-glandular; blade broadly oblong to ovate, 5–8 cm, base cuneate to broadly cuneate, lobes 0, or 1 or 2 per side, sinuses shallow, lobe apex acuminate young, obtuse later, margins dentate, teeth acute to acuminate, veins 5–7 per side, apex acute to acuminate angle from widest lobe to tip ca. 90˚, adaxial midvein sparsely long-hairy young. Inflorescences 5–8-flowered; branches glabrous; bracteoles caducous, numerous, hyaline to greenish, narrowly oblanceolate to linear, membranous, margins densely glandular. Flowers 15–20 mm diam.; sepals narrowly triangular, length not recorded, margins finely glandular, abaxially glabrous; anthers pink to purplish, sometimes cream; styles 3 or 4. Pomes greenish yellow to yellow, sometimes reddish, suborbicular, 8–10 mm diam.; sepals spreading or erose; pyrenes 3–5.


Phenology: Flowering early–mid Apr; fruiting Sep–Nov.
Habitat: Brushy forest regrowth, forest gaps and margins
Elevation: 20–200 m

Distribution

V9 994-distribution-map.jpg

Ala., Fla., Ga., La., Miss., Tex.

Discussion

Crataegus venusta is most abundant in Alabama. When flowering, it is one of the most striking members of ser. Pulcherrimae, with typical oblong leaf blades, their margins with lobes more or less absent and bearing numerous acuminate teeth. At maturity this characteristic is diminished, and typical larger short-shoot leaves then have several shallow lobes per side, these more or less subacute. Crataegus venusta was described by Beadle as possessing reddish pomes and cream anthers, but all material where color determination was possible had yellowish pomes and pink to purple anthers.

The most distinctive form possibly synonymous with Crataegus venusta is C. pallens Beadle [C. venusta Beadle var. pallens (Beadle) Lance], a morphotype with a very sparse and scattered distribution that is found from its type locality in western North Carolina to the type locality of its synonym C. alma Beadle in Mississippi. Compared to typical C. venusta, it usually has smaller leaves (blades typically less than 5 cm), differently shaped lobes that are wider than those of C. venusta with the leading edge usually more or less perpendicular to the midvein, and less sharp teeth. Definite intermediates with typical C. venusta are not known.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus venusta"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cream +, pink +  and purplish +
James B. Phipps +
Beadle +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +  and broadly cuneate +
Pulcherrimae +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
broadly oblong +  and ovate +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
hyaline +  and greenish +
narrowly oblanceolate +  and linear +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ala. +, Fla. +, Ga. +, La. +, Miss. +  and Tex. +
not +  and aggregated +
20–200 m +
less hard +  and mealy +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 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 />) +
chestnut +  and reddish green +
old +  and new +
Brushy forest regrowth, forest gaps and margins +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glandular +
crenate 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 +
sessile-glandular +
stipitate-glandular +
Flowering early–mid Apr +  and fruiting Sep–Nov. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
reddish +, greenish yellow +  and yellow +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
suborbicular +
not arillate +
persistent +
free +  and distinct +
triangular +
nonaccrescent +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Crataegus venusta +
Crataegus (sect. Coccineae) ser. Pulcherrimae +
species +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
straight +
slender +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +  and gland-tipped +
acute +  and acuminate +
inconspicuous +
corrugated +  and rough +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
few +  and numerous +
5 +  and 7 +
tree +  and shrub +