Melodinus J.R.Forst. & G.Forst.

Genus

Angiosperms > Gentianales > Apocynaceae

Characteristics

Perennial woody lianes to subshrubs, evergreen; latex white. Leaves petiolate, opposite; lamina entire, herbaceous to coriaceous, glabrous or with simple basifixed trichomes; colleters absent. Inflorescence extra-axillary, cymose, generally pedunculate. Flowers scented, pedicellate. Calyx without colleters. Corolla salverform; tube cylindrical, constricted at mouth, usually bulging around anthers, glabrous or with internal and external indumentum; lobes sinistrorse in bud. Corolline corona of 5 erect lobes or coalesced into irregular lobing at top of tube. Stamens included, inserted in tube about middle or towards base, not adherent to style-head; anthers lanceolate to lanceolate-ovate. Disc absent. Style-head cylindrical to oblong-ovoid, apiculate. Fruit syncarpous, a fleshy indehiscent berry, globose to globose-ovoid; pulp fleshy. Seed numerous, oblong, embedded in pulp, ecomose.
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Climbers, mostly large woody lianas. Leaves opposite; venation often raised, veins anastomosing before margin forming an intramarginal nerve; usually with the base of the petioles meeting across the stem; few glands in the axils or absent. Inflorescence a cyme; axillary and/or terminal, often forming a terminal panicle; flowers 5-merous. Sepals of free lobes, without colleters inside. Corolla lobes sinistrorse; open corolla infundibuliform or salverform; with a corona at the mouth of the corolla. Stamens free from style head, completely included in tube; anthers narrowly elliptic or narrowly ovate, base very short bluntly sagittate, fertile entire length; filaments short, filiform. Disk absent. Ovary syncarpous, bilocular, with numerous ovules, glabrous; style slender. Fruit a hard-walled solitary berry. Seeds ellipsoid, flattened; surface patterned.
Plants woody lianas or sometimes low shrubs, latex present. Leaves opposite. Cymes terminal or axillary. Flowers white. Calyx without glands. Corolla salverform; tube cylindric, dilated at staminal insertion; lobes usually oblique-falcate, overlapping to left; corona scales 5 or 10, erect. Stamens inserted at or below middle of corolla tube, included; filaments very short; anthers free from pistil head, base rounded; disc absent. Ovary 2-loculed; ovules numerous. Style short; pistil head apex dilated, 2-cleft. Berry large, pulpy. Seeds numerous; coma absent.
Life form perennial
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Foliage retention evergreen
Sexuality hermaphrodite
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Hardiness (USDA) 8-12

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Cultivation

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