Flora of North America species comparison

1, sometimes several, erect or spreading;

bark: older trunks gray, fissures dividing bark into rectangular plates; short shoots absent; unarmed;

young branches tomentose, glabrescent;

buds ovoid, apex obtuse or acuminate, tomentose.

deciduous, cauline, simple;

stipules caducous, free, ovate, margins glandular-serrate;

petiole present;

blade broadly ovate to oblong, 5–10 cm, firm or leathery, margins flat, entire, venation pinnate, abaxial surface densely villous, adaxial glabrous.

terminal on leafy branches, flowers solitary, densely hairy (tomentose) within, otherwise glabrous;

bracts present similar to stipules;

bracteoles absent.

present.

developing with leaves, perianth and androecium epigynous, 40–50 mm diam.;

hypanthium campanulate, ± constricted, 4–6 mm diam., inner rims hairy;

sepals 5, reflexed, ovate or broadly lanceolate;

petals 5, white or light pink, suborbiculate, ovate, or obovate, base short-clawed, apex rounded;

stamens 20, equal to or slightly longer than petals;

carpels 5, connate, adnate to hypanthium, ovaries 5-locular, tomentose, styles 5, terminal, distinct, ± equal to or 3/4 length of stamens, protruding through pit in top of hypanthium;

ovules many.

pomes, sessile or pedicellate, yellow, pyriform or subglobose, 30–50 mm, tomentose (sometimes tomentum ± rubbed off, with abundant, grouped stone or grit cells); fleshy;

hypanthium persistent;

sepals persistent, reflexed;

carpels cartilaginous;

styles ± persistent.

many.