Difference between revisions of "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.
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|subfamily=Rosaceae subfam. Amygdaloideae
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|tribe=Rosaceae tribe Gillenieae
 
|tribe=Rosaceae tribe Gillenieae

Latest revision as of 22:59, 5 November 2020

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, 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"
Jeanette Fryer +, Bertil Hylmö† +  and Peter F. Zika +
(Ledebour) Loddiges +
Cotoneaster vulgaris var. melanocarpus +
Dark cotoneaster +
Man. +, Eurasia (Russia +  and Ukraine). +
300–500 m +
Forested ravines +
Flowering Apr–May +  and fruiting Jul–Aug. +
Fam. Nat. Syn. Monogr. +
Introduced +
Ostinia +
Cotoneaster melanocarpus +
Cotoneaster +
species +