Cotoneaster monopyrenus

(W. W. Smith) Flinck & B. Hylmö

Bot. Not. 119: 459. 1966.

Common names: One-stoned cotoneaster
Introduced
Basionym: Cotoneaster hebephyllus var. monopyrenus W. W. Smith Notes Roy. Bot. Gard. Edinburgh 10: 23. 1917 (as hebephylla var. monopyrena)
Treatment appears in FNA Volume 9. Treatment on page 457. Mentioned on page 451, 452.

Shrubs or trees, 3–5 m. Stems loosely erect, arching, spreading; branches spiraled, maroon, lenticellate, initially pilose-strigose. Leaves deciduous; petiole 5–9 mm, pilose-strigose; blade elliptic, broadly elliptic, or broadly obovate, sometimes suborbiculate, 25–58 × 15–40 mm, subcoriaceous, base obtuse or cuneate, margins flat, veins 4–6, slightly sunken, apex obtuse or truncate, seldom acute, abaxial surfaces color not recorded, reticulate, tomentose-pilose, later thinning, adaxial dark green, dull, coating not recorded, flat between lateral-veins, glabrescent; fall leaves pale yellowish green. Inflorescences on fertile shoots 30–50 mm with 3–4 leaves, 7–20-flowered, lax. Pedicels 2–5 mm, pilose-strigose. Flowers 10–12 mm diam., buds white, hypanthium campanulate to cupulate, sparsely pilose-strigose; sepals: margins reddish, villous, borders maroon-tipped, membranous, apex acute, acuminate, or obtuse, surfaces sparsely pilose-strigose; petals spreading, white, sometimes with hair-tuft; stamens (15–) 20, filaments white; anthers purple to blackish purple; styles 1 (or 2). Pomes dark red or ruby to maroon, maturing dark purple or purple-black, obovoid, rarely globose or ellipsoid, 9–12.5 × 8.5–11.5 mm, dull, glaucous, glabrous; sepals flat, margins sparsely hairy, sparsely hairy to glabrate; navel open; style remnants at apex. Pyrenes 1 (or 2).


Phenology: Flowering May–Jun; fruiting Jul–Nov.
Habitat: Thickets
Elevation: 0–200 m

Distribution

V9 765-distribution-map.jpg

Introduced; Wash., Asia (China), also in Europe

Discussion

L. Lingdi and A. R. Brach (2003) synonymized Cotoneaster monopyrenus with C. hebephyllus (as C. hebephyllus var. hebephyllus).

Selected References

None.

Lower Taxa

None.
... more about "Cotoneaster monopyrenus"
green +, pale yellowish +  and dark green +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
purple +  and blackish purple +
Jeanette Fryer +, Bertil Hylmö† +  and Peter F. Zika +
(W. W. Smith) Flinck & B. Hylmö +
compound +  and simple +
opposite +  and alternate +
cuneate +  and obtuse +
Cotoneaster hebephyllus var. monopyrenus +
15 cm150 mm <br />0.15 m <br /> (21 cm210 mm <br />0.21 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (5.8 cm58 mm <br />0.058 m <br />) +
suborbiculate +, obovate +  and elliptic +
0.4 cm4 mm <br />0.004 m <br /> (15 cm150 mm <br />0.15 m <br />) +
15mm +  and 40mm +
maroon-tipped +
membranous +
pilose-strigose +
adnate +  and distinct +
strigose +  and tomentose +
One-stoned cotoneaster +
Wash. +, Asia (China) +  and also in Europe +
not +  and aggregated +
0–200 m +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
hairy +  and glabrous +
unisexual +  and bisexual +
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 />) +
Thickets +
pilose-strigose +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
flattened +  and domed +
crassinucellate +
deciduous +
pinnate +  and entire +
sparsely hairy +  and glabrate +
2 +  and 14 +
revolute +  and flat +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
pilose-strigose +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 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 +
pilose-strigose +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering May–Jun +  and fruiting Jul–Nov. +
adnate +, free +, connate +  and distinct +
purple-black +, dark purple +, maturing +, ruby +  and maroon +
0.9 cm9 mm <br />0.009 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
glabrous +  and glaucous +
ellipsoid +, globose +  and obovoid +
0.85 cm8.5 mm <br />0.0085 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
trigonous +  and planoconvex +
not arillate +
persistent +
free +  and distinct +
erect +  and incurved +
triangular +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
tomentose +  and strigose +
Introduced +
free +  and distinct +
branched +  and simple +
spreading +, arching +  and erect +
1 +  and 25 +
short-adnate +
inconspicuous +
deciduous +
distinct +
lateral +  and terminal +
elongate +
pilose-strigose +
Ostinia +
Cotoneaster monopyrenus +
Cotoneaster +
species +
inconspicuous +
4 +  and 6 +
tree +  and shrub +