Alyxia tetraquetra Markgr.

Species

Angiosperms > Gentianales > Apocynaceae > Alyxia

Characteristics

Climber. Branchlets weakly or strongly angled, densely lenticellate or not, glabrous. Leaves in whorls of 3-5; petiole 0.8-1.2 cm long, glabrous; blade coriaceous or thickly coriaceous, broadly elliptic or spathulate, 4.5-18 by 2.6-8.2 cm, 1.6-3 times as long as wide, apex emarginate to very shortly acuminate or apiculate, not mucronate, base acute to decurrent onto petiole, margin weakly undulate, glabrous beneath and above, not punctate beneath, secondary veins 32-51 pairs, 55-80° from midrib. Inflorescence axillary, a short congested compound pleiochasium, very robust, sparsely puberulent in upper parts, 2-3.5 cm long; peduncle 0.9-1.2 cm by 1.9-3.4 mm; bracts caducous or persistent, deltoid, 1.3-2.4 by 1.3-2.4 mm; bracteoles two immediately beneath calyx; flowers 13-25; pedicels 0.5-1 mm long. Sepals free, not fleshy, ovate, c. 2 by 1.5 mm, 1.3 times as long as wide, apex rounded to obtuse, ciliate, sparsely puberulent. Corolla white; bud head c. 1.7 mm long which is 0.4 of bud length, globular or deltoid, apex rounded or acute; tube cylindrical, c. 3.4 by 1.2 mm, 1.7 times as long as sepals, 3.1 times as long as lobes, densely pubescent around top of tube outside, sparsely pubescent around stamens and more densely in a band beneath them inside; lobes orbicular, c. 1.1 by 1 mm, 1.1 times as long as wide, apex rounded, base auriculate, sparsely or densely puberulent outside, glabrous inside, ciliate. Stamens inserted at c. 2.3 mm from corolla base which is 0.62 of tube length; anther apex c. 0.2 mm from corolla mouth, anthers c. 1 by 0.4 mm. Ovaries c. 0.8 mm high, densely pubescent all over; style c. 0.9 mm long; style head c. 0.5 mm long. Fruit orange (black when mature?), stalks c. 2.3 mm long, with 1 or 2 articles in each string, 0 mm between articles, articles with thin flesh, 17-19 by 12.3-13.5 mm, ellipsoid, symmetrical, apex rounded.
Life form perennial
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
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Environment

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Usage

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Edible -
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Cultivation

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Distribution

Alyxia tetraquetra world distribution map, present in Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:76811-1
WFO ID wfo-0000956702
COL ID CD5R
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Alyxia tetraquetra