Sorbus subg. Sorbus

Treatment appears in FNA Volume 9. Treatment on page 437. Mentioned on page 434, 439, 443.

Shrubs or trees, to 150 dm. Winter buds glutinous or not. Leaves pinnately compound at least proximally; petiole nodes 5-lacunate; leaflet margins usually serrate, rarely almost entire. Flowers: styles distinct. Pomes: epidermis single-layered; flesh without tanniferous cells; core absent.

Distribution

North America, Eurasia, n Africa, Atlantic Islands, in Pacific Islands (New Zealand)

Discussion

Species 72 (8 in the flora).

Four of the 11 recognized sections of subg. Sorbus occur in the flora area.

Selected References

None.

Key

1 Leaflets minutely, densely papillose abaxially (at 70× ); carpels in fruit distinct in distal 1/2, apices convex; winter buds densely hairy, hairs usually whitish, rarely rufous, not glutinous. 53c.Sorbus sect. Sorbus
1 Leaflets not papillose abaxially; carpels in fruit connate or distinct, apices flat or convex; winter buds glabrous, glutinous, or hairy, hairs usually rufous, sometimes whitish > 2
2 Winter buds mostly glutinous; carpel apices flat or convex. 53c.Sorbus sect. Commixtae
2 Winter buds never strongly glutinous; carpel apices convex > 3
3 Leaflets not glaucous adaxially; flowers: perianth and androecium epigynous; carpels connate entire lengths; pomes red, not glaucous. 53c.Sorbus sect. Sambucifoliae
3 Leaflets somewhat glaucous adaxially; flowers: perianth and androecium semiepigynous; carpels distinct most of lengths; pomes pinkish red, glaucous. 53c.Sorbus sect. Tianshanicae
... more about "Sorbus subg. Sorbus"
Peter F. Zika +  and Stéphane M. Bailleul +
Linnaeus +
gray +  and brown or bronze +
compound +  and simple +
opposite +  and alternate +
not +  and clawed +
ovate +  and oblong +
5 cm50 mm <br />0.05 m <br /> (33 cm330 mm <br />0.33 m <br />) +
? (?) +  and ? (?) +
not +  and glutinous +
adnate +, connate +, or +  and distinct +
odd +  and simple +
divided +  and lobed +
tanniferous +
North America +, Eurasia +, n Africa +, Atlantic Islands +  and in Pacific Islands (New Zealand) +
not +  and aggregated +
single-layered +
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 +
Sp. Pl. +  and Gen. Pl. ed. +
1753 +  and 1754 +
not arillate +
flattened;ovoid;lanceoloid +
deciduous +  and persistent +
free +  and distinct +
incurved +, ascending +  and erect +
triangular +  and ovate +
free +  and distinct +
branched +  and simple +
ascending +  and erect +
1 +  and 8 +
persistent +  and deciduous +
short-adnate +  and free +
persistent +
distinct +
basal +, lateral +, subterminal +  and terminal +
elongate +
glaucous +, hairy +  and glabrous +
Sorbus subg. Sorbus +
subgenus +
inconspicuous +
hairy +  and glabrous +
tree +  and shrub +