Cotoneaster tengyuehensis

J. Fryer & B. Hylmö

Watsonia 21: 338. 1997.

Common names: Tengyueh cotoneaster
Introduced
Treatment appears in FNA Volume 9. Treatment on page 465. Mentioned on page 451, 452, 453.

Shrubs, 2–2.5 m; crown ± rounded. Stems erect, arching, long; branches distichous, grayish maroon, initially densely strigose. Leaves deciduous (sometimes tardily so on vigorous shoots); petiole 1–4 mm, strigose; blade ovate or elliptic, (25–) 30–50 (–61) x 12–32 mm, chartaceous, base cuneate or rounded, margins flat, veins 3–5, deeply sunken, apex acuminate or acute, abaxial surfaces grayish green, villose-strigose or sparsely to moderately gray-tomentose, adaxial green to dark green, shiny, not glaucous, flat or faintly bulging between lateral-veins, pilose-strigose; fall leaves yellow to orange. Inflorescences on fertile shoots 25–40 mm with (3 or) 4 leaves, 3–7 (–9) -flowered, compact. Pedicels 1–4 mm, densely strigose. Flowers erect or ascending, [5–] 6–8 mm, opening small; hypanthium cupulate, strigose; sepals: margins villous, borders reddish-brown, glabrous, apex acuminate or cuspidate, surfaces strigose; petals erect-incurved, pink to red, base dark-pink or red, rarely dark red or maroon, margins white; stamens 20 or 21, filaments pink or pale-pink, whitish distally, anthers white; styles (2 or) 3–5. Pomes spreading or pendent, bright red, broadly obovoid or subglobose, rarely oblong-obovoid, 6.3–10.4 × 5.8–9.1 mm, shiny, not glaucous, sparsely strigose; sepals flat or suberect, strigose; navel closed; style remnants 2/3 from base. Pyrenes (2 or) 3–5.2n = 68 (Germany).


Phenology: Flowering May–Jun; fruiting Sep–Feb.
Habitat: Thickets, creek banks, open forests, edges
Elevation: 0–50 m

Distribution

V9 783-distribution-map.jpg

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

Discussion

L. Lingdi and A. R. Brach (2003) confused Cotoneaster tengyuehensis with C. glomerulatus W. W. Smith, a species with small fruits 5 mm in diameter, with 5 pyrenes and styles, and slightly smaller leaves to 40–50 mm. In the flora area, C. tengyuehensis is more likely to be mistaken for C. franchetii, which is a true evergreen with orange-red, obovate to obconic fruits, and pink to purple stamens. Naturalized shrubs of C. tengyuehensis drop their foliage in midwinter.

Selected References

None.

Lower Taxa

None.
... more about "Cotoneaster tengyuehensis"
villose-strigose or +  and sparsely moderately gray-tomentose +
yellow +  and orange +
pilose-strigose +  and not glaucous +
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 +
J. Fryer & B. Hylmö +
compound +  and simple +
opposite +  and alternate +
maroon +, dark red +, red +  and dark-pink +
rounded +  and cuneate +
5 cm50 mm <br />0.05 m <br /> (6.1 cm61 mm <br />0.061 m <br />) +
15 cm150 mm <br />0.15 m <br /> (21 cm210 mm <br />0.21 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
elliptic +  and ovate +
0.4 cm4 mm <br />0.004 m <br /> (15 cm150 mm <br />0.15 m <br />) +
? (?) +  and ? (?) +
12mm +  and 32mm +
reddish-brown +
grayish maroon +
adnate +  and distinct +
strigose +  and tomentose +
Tengyueh cotoneaster +
rounded +
Wash. +, Asia (China) +  and also in Europe +
not +  and aggregated +
0–50 m +
whitish +, pale-pink +  and pink +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
ascending +  and erect +
hairy +  and glabrous +
unisexual +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 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 />) +
Thickets, creek banks, open forests, edges +
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 +
2 +  and 14 +
revolute +  and flat +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0 (?) +  and 4 (?) +
Pink (?) +  and Red (?) +
free +  and distinct +
erect-incurved +
1 +  and 5 +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering May–Jun +  and fruiting Sep–Feb. +
adnate +, free +, connate +  and distinct +
bright red +
0.63 cm6.3 mm <br />0.0063 m <br /> (1.04 cm10.4 mm <br />0.0104 m <br />) +
pendent +  and spreading +
strigose +  and not glaucous +
oblong-obovoid +, subglobose +  and obovoid +
0.58 cm5.8 mm <br />0.0058 m <br /> (0.91 cm9.1 mm <br />0.0091 m <br />) +
trigonous +  and planoconvex +
not arillate +
persistent +
free +  and distinct +
triangular +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
tomentose +  and strigose +
Introduced +
free +  and distinct +
branched +  and simple +
arching +  and erect +
1 +  and 25 +
short-adnate +
inconspicuous +
deciduous +
distinct +
lateral +  and terminal +
elongate +
Ostinia +
Cotoneaster tengyuehensis +
Cotoneaster +
species +
inconspicuous +
3 +  and 5 +