Clausena Burm.F.

Clausena (en)

Genus

Angiosperms > Sapindales > Rutaceae

Characteristics

Shrubs or trees, unarmed, without rust-colored villosulous indumentum on terminal and axillary buds or young inflorescences. Leaves alternate, odd-pinnate. Inflorescences terminal or axillary, paniculate or in loose racemes. Flowers bisexual or very rarely female, globose to pyriform or rarely ovoid in bud. Sepals 4 or 5, connate at base or to their full length. Petals 4 or 5, imbricate in bud. Stamens 8 or 10, distinct, alternately unequal in length; filaments ± abruptly dilated toward base, ± straight or geniculate. Disk columnar, conic, bell-shaped, or ± hourglass-shaped. Gynoecium (2-)4-or 5-loculed, syncarpous; radial walls of locules straight; ovules 2 per locule; style 0.5-2.5 × as long as ovary, deciduous in fruit. Fruit a berry, with neither pulp nor pulp vesicles; endocarp membranous. Seeds with membranous seed coat; endosperm lacking; embryo straight; cotyledons elliptic, plano-convex, neither convolute nor folded; hypocotyl partly included between cotyledons.
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Unarmed trees and shrubs. Leaves in spirals, imparipinnate; rachis rarely winged in mature plants; leaflets alternate, densely pellucid-dotted. Inflorescences terminal and/or axillary, thyrses or racemes. Flowers bisexual, rarely with some males, 4-and/or 5-merous. Sepals basally united, persistent. Petals free, imbricate, soon falling. Stamens 8 or 10 in 2 whorls, the outer (opposite sepals) often somewhat longer; filaments attached to disc; anthers dorsifixed, introrse. Disc annular. Gynophore hour-glass-shaped, glabrous. Ovary (2–) 4-or 5-locular, each locule with 2 pendulous, superposed to collateral ovules; style shorter than rest of pistil. Berry spherical to subconical, usually glandular. Seeds 1–3 (–5); cotyledons planoconvex.
Unarmed shrubs or trees. Leaves pinnate, alternate, densely dotted with pellucid glands, deciduous. Inflorescence a terminal or axillary panicle or lax raceme. Flowers bisexual. Sepals 4–5, united at the base, very small. Petals 4–5, free, imbricate in bud. Stamens 8–10, inserted at the base of the disk; filaments subulate, flattened towards the base; anthers elliptic, dorsifixed, introrse. Ovary stalked, (2–3–)4–5-locular, with 2 ovules in each locule; style short, caducous; stigma 2–5-lobed, broad, obtuse. Fruit fleshy, oblong, ovoid or globose, 2–5-locular. Seeds oblong.
Stamens 8–10, inserted at the base of the disk; filaments subulate, flattened towards the base; anthers elliptic, dorsifixed, introrse.
Ovary (2–3) 4–5-locular, with 2 ovules in each loculus; style short, caducous; stigma broad, obtuse, 2–5-lobed.
Leaves alternate, pinnate, densely dotted with pellucid glands.
Sepals 4–5, very small, united at the base.
Inflorescence of axillary cymose panicles.
Flowers small, 4-merous, bisexual.
Petals 4–5, imbricate in bud.
Fruit baccate, 1–2-seeded.
Unarmed trees or shrubs.
Life form perennial
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Foliage retention deciduous
Sexuality hermaphrodite
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Hardiness (USDA) 8-12

Usage

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Cultivation

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