Sorbus subg. Torminaria

(de Candolle) K. Koch

Hort. Dendrol., 178. 1853.

Introduced
Basionym: Pyrus sect. Torminaria de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 2: 636. 1825
Synonyms: Undefined subg. Torminalis Medikus
Treatment appears in FNA Volume 9. Treatment on page 436. Mentioned on page 433, 434.

Trees, to 120 [–200] dm. Winter buds glutinous [or not]. Leaves simple; petiole nodes 3-lacunate; blade margins relatively deeply lobed. Flowers: styles connate 1/2 their lengths. Pomes: epidermis multilayered; flesh composed entirely of tanniferous cells; core present.

Distribution

Introduced; Wash., Eurasia, n Africa

Discussion

Species 3 (1 in the flora).

The two other species of this subgenus are of apparent hybrid origin, possibly with subg. Aria, and exhibit less deeply lobed leaves and pome flesh with tanniferous cells in groups.

Selected References

None.

Lower Taxa

... more about "Sorbus subg. Torminaria"
Peter F. Zika +  and Stéphane M. Bailleul +
(de Candolle) K. Koch +
gray +  and brown or bronze +
compound +  and simple +
opposite +  and alternate +
not +  and clawed +
Pyrus sect. Torminaria +
ovate +  and oblong +
5 cm50 mm <br />0.05 m <br /> (33 cm330 mm <br />0.33 m <br />) +
? (?) +  and ? (?) +
glutinous +
adnate +, connate +, or +  and distinct +
odd +  and simple +
divided +  and lobed +
tanniferous +
Wash. +, Eurasia +  and n Africa +
not +  and aggregated +
0.5 cm5 mm <br />0.005 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
rancid +, unpleasant +  and strong +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
yellow +, brown +, red +  and orange +
glabrous +, hairy +  and glaucous +
0.4 cm4 mm <br />0.004 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
green +  and red +
hairy +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
alternate +  and opposite +
oblong +  and lanceolate or oblanceolate +
pinnate +, sharply serrate +  and nearly entire +
toothed +, unlobed +  and lobed +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
3 +  and 2 +
hairy +, glaucous +  and glabrous +
rounded +  and flat-topped +
0 (?) +  and 4 (?) +
Pink (?) +  and White (?) +
free +  and distinct +
2 +  and 5 +
adnate +, free +, connate +  and distinct +
Hort. Dendrol., +
not arillate +
flattened;ovoid;lanceoloid +
deciduous +  and persistent +
free +  and distinct +
incurved +, ascending +  and erect +
triangular +  and ovate +
Introduced +
free +  and distinct +
branched +  and simple +
ascending +  and erect +
1 +  and 8 +
persistent +  and deciduous +
short-adnate +  and free +
persistent +
basal +, lateral +, subterminal +  and terminal +
elongate +
glaucous +, hairy +  and glabrous +
Undefined subg. Torminalis +
Sorbus subg. Torminaria +
subgenus +
inconspicuous +
hairy +  and glabrous +