Cotoneaster transens

G. Klotz

Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Naturwiss. Reihe 17(3): 337, fig. 4. 1968.

Common names: McLaren's cotoneaster
Introduced
Treatment appears in FNA Volume 9. Treatment on page 457. Mentioned on page 452, 453.

Shrubs or trees, 4–6 m. Stems loosely erect, spreading, stiff; branches spiraled, maroon, minutely verrucose, initially pilose-strigose. Leaves deciduous; petiole 4–6 mm, densely pilose-strigose; blade on sterile shoots elliptic, (35–) 50–80 (–103) x (13–) 17–37 (–42) mm, chartaceous, margins flat, base cuneate, veins 6–10, superficial or lightly sunken, apex acute or obtuse, abaxial surfaces color not recorded, villose-strigose, adaxial brownish green, soon green, dull, coating not recorded, flat between lateral-veins, glabrate; fall leaves yellow. Inflorescences on fertile shoots 40–50 mm with 2–4 leaves, 10–25-flowered, lax. Pedicels 3–5 mm, densely pilose-strigose. Flowers 10–12 mm diam.; buds white; hypanthium cupulate, villose-strigose; sepals: margins villous, apex acute, surfaces sparsely villous; petals spreading, white, with large hair-tuft; stamens (16–) 20, filaments white, anthers black, styles 1 or 2. Pomes maroon to purple-black, obovoid to elliptic-obovoid, 9–12 × 9–10 mm, slightly shiny, glaucous, sometimes sparsely villous; sepals flat, margins glabrous, sparsely villous; navel slightly open; style remnants 9/10 from base. Pyrenes 1 or 2.


Phenology: Flowering Jun; fruiting Oct–Nov.
Habitat: Thickets
Elevation: 0–50 m

Distribution

V9 766-distribution-map.jpg

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

Discussion

L. Lingdi and A. R. Brach (2003) synonymized Cotoneaster transens with C. glaucophyllus Franchet (as C. glaucophyllus var. glaucophyllus). Cotoneaster transens is a deciduous species with purple-black pomes and is not closely related to C. glaucophyllus, an evergreen species with smaller leaves, smaller red pomes, and smaller flowers, among other differences.

Selected References

None.

Lower Taxa

None.

... more about "Cotoneaster transens"
yellow +, green +  and brownish green +
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 +
G. Klotz +
compound +  and simple +
opposite +  and alternate +
cuneate +
15 cm150 mm <br />0.15 m <br /> (21 cm210 mm <br />0.21 m <br />) +
ovate +, lanceolate +, orbiculate +  and elliptic to linear +
0.4 cm4 mm <br />0.004 m <br /> (15 cm150 mm <br />0.15 m <br />) +
leathery +  and membranous +
pilose-strigose +
verrucose +
adnate +  and distinct +
strigose +  and tomentose +
McLaren's cotoneaster +
Wash. +, Asia (China) +  and also in Europe +
not +  and aggregated +
0–50 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 +
villose-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 +
villous +  and glabrous +
2 +  and 14 +
revolute +  and flat +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
pilose-strigose +
0.3 cm3 mm <br />0.003 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 +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering Jun +  and fruiting Oct–Nov. +
adnate +, free +, connate +  and distinct +
maroon +  and purple-black +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
villous +  and glaucous +
obovoid +  and elliptic-obovoid +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Naturwiss. Reihe +
trigonous +  and planoconvex +
not arillate +
persistent +
free +  and distinct +
erect +  and incurved +
triangular +
fertile +  and sterile +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
tomentose +  and strigose +
Introduced +
free +  and distinct +
branched +  and simple +
spreading +  and erect +
1 +  and 25 +
short-adnate +
inconspicuous +
lanceolate;linear +
deciduous +
distinct +
lateral +  and terminal +
elongate +
Ostinia +
Cotoneaster transens +
Cotoneaster +
species +
inconspicuous +
superficial +
6 +  and 10 +
tree +  and shrub +