Crataegus incilis

Beadle

Biltmore Bot. Stud. 1: 41. 1901.

Endemic
Synonyms: Crataegus pulcherrima var. incilis (Beadle) Lance
Treatment appears in FNA Volume 9. Treatment on page 585. Mentioned on page 580, 584.

Shrubs or trees, 40–70 dm. Stems: twigs: new growth reddish green, 1-year old dark red brown, 2-years old dark gray; thorns on twigs ± straight, 2-years old dark-brown to blackish, fine, 1.5–3 cm. Leaves: petiole length 40–55% blade, sparsely to densely sessile-glandular; blade trullate to narrowly ovate, 3.5–5.5 (–7.5) cm, base cuneate (tapering into distal winged part of petiole), lobes 3 or 4 per side, sinuses deep, max LII 25–50%, lobe apex usually ± narrowly cuspidate, margins dentate, teeth ± distant, subacute, veins 5–7 per side, apex subacute, vein pubescence not recorded. Inflorescences 3–7-flowered; branches glabrous; bracteoles caducous, numerous, linear, membranous, margins glandular. Flowers 14–18 mm diam.; sepals narrowly triangular, 7 mm, margins subentire or glandular-denticulate; anthers pink; styles 3–5. Pomes red or yellow, orbicular, 5–8 (–10) mm diam.; sepals widespreading; pyrenes 3–5.


Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Open woods, woodland margins
Elevation: 20–200 m

Discussion

The deeply cut trullate leaves of Crataegus incilis, with the acute tips of their triangular lobes in a more or less straight line in the more extreme forms, are very distinctive. The type, and most specimens seen, do not have quite straight-sided lobes as seen in the illustration in J. B. Phipps and K. A. Dvorsky (2006b), and their lobes may therefore be described as more or less narrowly cuspidate. Forms with somewhat more rounded lobes and yellow pomes that might key out here perhaps represent C. concinna Beadle.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus incilis"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
Beadle +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Pulcherrimae +
5.5 cm55 mm <br />0.055 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
trullate +  and narrowly ovate +
3.5 cm35 mm <br />0.035 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
obovate +, linear +  and narrowly oblong +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ala. +, Fla. +, Ga. +  and Miss. +
not +  and aggregated +
20–200 m +
less hard +  and mealy +
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 />) +
dark gray +, brown +, dark red +  and reddish green +
old +  and new +
Open woods, woodland margins +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
stipitate-glandular +
glandular-denticulate +  and subentire +
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 Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
yellow +  and red +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
orbicular +
Biltmore Bot. Stud. +
not arillate +
persistent +
free +  and distinct +
widespreading +
triangular +
nonaccrescent +
7 cm70 mm <br />0.07 m <br /> (?) +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Crataegus pulcherrima var. incilis +
Crataegus incilis +
Crataegus (sect. Coccineae) ser. Pulcherrimae +
species +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
dark-brown +  and blackish +
straight +
slender +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
craspedodromous +  and gland-tipped +
subacute +
inconspicuous +
corrugated +  and rough +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
few +  and numerous +
5 +  and 7 +
tree +  and shrub +