Cotoneaster melanocarpus

(Ledebour) Loddiges

Fam. Nat. Syn. Monogr. 3: 223. 1847.

Common names: Dark cotoneaster
Introduced
Basionym: Cotoneaster vulgaris var. melanocarpus Ledebour Fl. Altaica 2: 219. 1830 (as melanocarpa)
Treatment appears in FNA Volume 9. Treatment on page 467. Mentioned on page 438, 451, 452, 464, 468.

Shrubs, 2–2.5 m. Stems loosely erect; branches spiraled, yellow-brown to red brown, lenticellate, shiny, initially densely pilose. Leaves deciduous; petiole 4–7 mm, tomentose-villous; blade elliptic to ovate, 33–45 × 20–32 mm, chartaceous, base rounded, margins flat, veins 5–7, superficial, apex acute or obtuse, abaxial surfaces densely silvery-pilose-villous, adaxial green to dark green, dull to slightly shiny, not glaucous, flat between lateral-veins, rugose, sparsely pilose; fall leaves lacking notable color. Inflorescences on fertile shoots 25–30 mm with 3 or 4 leaves, 5–13-flowered, pendent, lax. Pedicels 3–8 mm, sometimes sparsely villous. Flowers erect, 6–7 mm, open; hypanthium cupulate, dark reddish-brown, glabrous; sepals: margins erose, apex acute or obtuse, surfaces glabrous, often apically villous; petals erect, greenish white with pink, red, base slightly darkened, margins white, glabrous; stamens 20 (–22), filaments white, anthers white; styles 2–4. Pomes purple-black, obovoid or globose, 7–9 × 7–9 mm, dull, glaucous with blue tinge, glabrous; sepals suberect, glabrous or apically villous; navel open; style remnants 2/3 from base. Pyrenes 2–4.2n = 48–52, 68 (Russia).


Phenology: Flowering Apr–May; fruiting Jul–Aug.
Habitat: Forested ravines
Elevation: 300–500 m

Distribution

V9 790-distribution-map.jpg

Introduced; Man., Eurasia (Russia), Eurasia (Ukraine)

Discussion

Cotoneaster melanocarpus is said to hybridize spontaneously with Sorbus aucuparia in Siberia, forming x\Sorbocotoneaster Pojarkova. The actual Cotoneaster parent is more likely to be a diploid and needs investigation.

Selected References

None.

Lower Taxa

None.
... more about "Cotoneaster melanocarpus"
68 +, 48 +  and 52 +
silvery-pilose-villous +
lacking +, green +  and dark green +
pilose +  and not glaucous +
dull +  and slightly shiny +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Jeanette Fryer +, Bertil Hylmö† +  and Peter F. Zika +
(Ledebour) Loddiges +
compound +  and simple +
opposite +  and alternate +
rounded +
Cotoneaster vulgaris var. melanocarpus +
15 cm150 mm <br />0.15 m <br /> (21 cm210 mm <br />0.21 m <br />) +
3.3 cm33 mm <br />0.033 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
elliptic +  and ovate +
0.4 cm4 mm <br />0.004 m <br /> (15 cm150 mm <br />0.15 m <br />) +
? (?) +  and ? (?) +
20mm +  and 32mm +
yellow-brown +  and red brown +
adnate +  and distinct +
strigose +  and tomentose +
Dark cotoneaster +
Man. +, Eurasia (Russia) +  and Eurasia (Ukraine) +
not +  and aggregated +
300–500 m +
hairy +  and glabrous +
unisexual +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not +  and aggregated +
not +  and aggregated +
1.4 cm14 mm <br />0.014 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
orange +  and red or purple +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Forested ravines +
dark reddish-brown +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1-150[-200]-flowered +
flattened +  and domed +
crassinucellate +
deciduous +
pinnate +  and entire +
2 +  and 14 +
revolute +  and flat +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
1 +  and 5 +
tomentose-villous +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering Apr–May +  and fruiting Jul–Aug. +
adnate +, free +, connate +  and distinct +
purple-black +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
glabrous +  and glaucous +
globose +  and obovoid +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Fam. Nat. Syn. Monogr. +
trigonous +  and planoconvex +
not arillate +
persistent +
free +  and distinct +
villous +  and glabrous +
triangular +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
tomentose +  and strigose +
Introduced +
free +  and distinct +
branched +  and simple +
1 +  and 25 +
short-adnate +
inconspicuous +
deciduous +
distinct +
lateral +  and terminal +
elongate +
villous +  and glabrous +
Ostinia +
Cotoneaster melanocarpus +
Cotoneaster +
species +
inconspicuous +
superficial +
5 +  and 7 +