Crataegus nitida

(Engelmann ex Britton & A. Brown) Sargent

Bot. Gaz. 31: 231. 1901.

Conservation concernEndemic
Basionym: Crataegus viridis var. nitida Engelmann ex Britton & A. Brown Ill. Fl. N. U.S. 2: 242. 1897
Treatment appears in FNA Volume 9. Treatment on page 535. Mentioned on page 531, 533.

Trees, 100 dm. Stems: mature trunk bark broken into gray-brown platelike scales; twigs: new growth not recorded, 1-year old chestnut-brown, subcoriaceous; thorns on twigs absent or few, 1–2-years old chestnut-brown, 2.5–4 cm. Leaves: petiole 1.5–2.5 cm, length 33% blade, adaxially pubescent young, sparsely glandular; blade broadly lanceolate to narrowly rhombic-elliptic, 5–8 cm, subcoriaceous, base tapered, lobes 0, or 1 or 2 (or 3) per side, sinuses shallow, max LII (0–) 5–10 (–20) %, margins strongly serrate (teeth 2–3 mm), venation craspedodromous, veins 5 or 6 per side, apex acute to acuminate, surfaces glabrous. Inflorescences 10–20-flowered, dome-shaped; branches glabrous. Flowers 15–18 mm diam.; hypanthium glabrous; sepals 7 mm, margins glandular-denticulate, abaxially glabrous; anthers cream or pale-pink. Pomes brick-red to red, pruinose on drying, suborbicular, 8–12 mm diam.; sepals spreading. 2n = 51.


Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Flood plains
Elevation: 10–200 m

Discussion

Of conservation concern.

Crataegus nitida is found from southern Illinois to eastern Arkansas along the Mississippi River flood plain; it appears to be rare. The species differs only slightly from C. viridis var. viridis, mainly in the larger fruit, more pronounced leaf marginal teeth, and more coriaceous mature leaves. Horticultural plants labeled C. nitida are usually a C. crus-galli × C. viridis cross.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus nitida"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
pale-pink +  and cream +
James B. Phipps +
(Engelmann ex Britton & A. Brown) Sargent +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
tapered +
Crataegus viridis var. nitida +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
broadly lanceolate +  and narrowly rhombic-elliptic +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
linear-filiform +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ark. +, Ill. +  and Mo. +
not +  and aggregated +
10–200 m +
hard +  and mealy +
1.5 cm15 mm <br />0.015 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 />) +
chestnut-brown +
old +  and new +
subcoriaceous +
Flood plains +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glandular-denticulate +
serrate to obscurely +
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 +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
brick-red +  and red +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
suborbicular +
plate-like +
not arillate +
persistent +
free +  and distinct +
triangular +
7 cm70 mm <br />0.07 m <br /> (?) +
1-50-flowered +  and few-leaved +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Virides +
Crataegus nitida +
Crataegus (sect. Coccineae) ser. Virides +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
chestnut-brown +
straight +
slender +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
thin-exfoliating +, whitish to light gray +  and plated +
less erect +  and oblique +
1 +  and several +
determinate +
6 +  and 5 +