Pyrus Linnaeus (Q4389)

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Pyrus is a taxon with the rank genus within the tribe Maleae
Language Label Description Also known as
English
Pyrus Linnaeus
Pyrus is a taxon with the rank genus within the tribe Maleae

    Statements

    taxon/id/Pyrus Linnaeus
    0 references
    Pyrus Linnaeus
    Pyrus
    Linnaeus
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Pear (English)
    poirier (English)
    Europe
    n Africa
    also in Mexico
    South America
    Pacific Islands (New Zealand)
    Australia
    Trees, often pyramidal or oval in silhouette, (50–) 80–300 dm.
    Stems 1–many, erect;
    bark gray, reddish or orangebrown, smooth, older with gray or blackish rectangular plates;
    short-shoots sometimes present;
    thorns present or absent;
    young branches glabrous or tomentose;
    buds ovoid, narrowly ovoid, or triangular-ovoid, apex obtuse or acuminate, glabrous or sparsely to densely tomentose.
    Leaves deciduous, cauline, simple;
    stipules sometimes caducous, free, lanceolate, margins serrate or entire;
    blade suborbiculate, ± ovate or ovatelanceolate to elliptic, oblong, or obovate, (2–) 5–9 (–12) cm, firm or leathery, margins flat, serrate, crenate, serrulate, crenulate, or entire, venation pinnate, surfaces hairy or glabrous.
    Inflorescences terminal on short branches, 4–9-flowered, racemes or simple corymbs, umbellike, with short persistent axis, glabrous or tomentose;
    bracteoles absent.
    Pedicels present.
    Flowers developing with or before leaves, perianth and androecium epigynous, 15–45 mm diam.;
    hypanthium campanulate or cupular, 3–5 mm diam., interior usually pubescent, exterior hairy or glabrous;
    sepals 5, reflexed, lanceolate or triangular-lanceolate to triangular or triangular-ovate;
    petals 5, white or creamy, ovate or ovate-elliptic to obovate or obovate-elliptic, base short-clawed, apex rounded;
    stamens 20, equal to or slightly shorter than petals;
    carpels 2–5, mostly connate, fully adnate to hypanthium, glabrous, styles terminal, distinct (constricted basally by hypanthium), ± equal to stamens;
    fleshy with abundant stone or grit cells;
    hypanthium persistent;
    sepals persistent or deciduous, reflexed;
    carpels cartilaginous;
    styles persistent or not.