Psydrax lividus (Hiern) Bridson

Species

Angiosperms > Gentianales > Rubiaceae > Psydrax

Characteristics

Shrub or small tree 0.8–8 m. tall; green twigs glabrescent to densely pubescent, older stems covered with pale tissue-like bark which flakes off to reveal darker underlayer.. Leaves restricted to green stems or occasionally on older stems, not always fully mature at time of flowering; blades narrowly ovate to ovate or occasionally broadly ovate, 1.5–13 cm. long, 1–7 cm. wide, acute to subacuminate, sometimes acuminate or obtuse to rounded at apex, obtuse to rounded or sometimes acute at base, herbaceous, dull to slightly shiny above, glabrous to densely pubescent on both faces; lateral nerves in 4–5 main pairs; tertiary nerves apparent; domatia present as membranous pockets, ciliate; petioles 2–5(– 10) mm. long; stipules triangular-acuminate, 4–7 mm. long, with lobe decurrent when mature.. Flowers scented or not, 4-merous, borne in 6–70-flowered pedunculate compact corymbs; peduncle 0.3–1.5 cm. long, pubescent; inflorescence-branches fairly short, rather acutely angled; pedicels 0.3–1(–1.5) cm. long, pubescent; bracteoles inconspicuous.. Calyx-tube 1 mm. long, broader than long, pubescent or glabrous save for a few hairs towards base; limb 0.5 mm. long, irregularly dentate, ciliate.. Corolla greenish white (and/or yellow); tube 1.25–3 mm. long, pubescent at throat but lacking definite ring of deflexed hairs; lobes oblong, 1.25–2 mm. long, 1–1.5 mm. wide, obtuse to rounded.. Anthers reflexed.. Style up to 6 mm. long; stigmatic knob 1 mm. long, obscurely ribbed; disk glabrous.. Fruit black when mature, broadly oblong in outline, 5–6 mm. long, 7.5–8 mm. wide, not or scarcely indented; pyrene ± ellipsoid, 5–6 mm. long, 3.5 mm. wide, rugulose.
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Leaves restricted to young stems, or occasionally on older stems, not always fully mature at time of flowering; blades 1.5–13 × 1–7 cm, narrowly ovate to ovate or occasionally broadly ovate, acute to subacuminate or sometimes acuminate or obtuse to rounded at apex, obtuse to rounded or sometimes acute at the base, herbaceous, dull to slightly shiny on upper surface, glabrous to densely pubescent on both surfaces; lateral nerves in 4–5 main pairs; tertiary nerves apparent; domatia present as ciliate membranous pockets; petioles 2–5(10) mm long; stipules 4–7 mm long, triangular-acuminate with lobe eventually decurrent.
Tree or shrub, up to 4 m high. Leaves deciduous, leaf blades 15-130 mm long, base obtuse to rounded or rarely subcordate, chartaceous to subcoriaceous, dull above, pubescent or glabrous, lateral nerves in 3-5 main pairs. Stipules triangular, acuminate. Inflorescence clearly pedunculate. Corolla lobes 1.25-2.00 mm long. Fruit ovate, scarcely indented at apex. Flowers white.
Flowers 4-merous, borne on 6–70-flowered pedunculate compact corymbs; peduncle 3–15 mm long, pubescent; inflorescence branches proportionately short, not spreading; pedicels 3–10(15) mm long, pubescent; bracts and bracteoles inconspicuous.
Corolla greenish-white (or yellow); tube 1.25–3 mm long, pubescent at throat but without a well defined ring of deflexed hairs; lobes 1.25–2 × 1–1.5 mm long, oblong, obtuse to rounded.
Shrub or small tree 0.8–8 m tall; green twigs glabrescent to densely pubescent; older stems at first covered with pale tissue-like bark which flakes off to reveal a darker underlayer.
Calyx tube 1 mm long, broader than long, pubescent or glabrous save for a few hairs towards the base; limb 0.5 mm long, irregularly dentate, ciliate.
Fruit 5–6 × 7.5– 8 mm, broadly oblong in outline, not or scarcely indented at the apex, black when mature.
Pollen presenter 1 × 0.5 mm long, obscurely ribbed; disk glabrous.
Pyrene 5–6 × 3.5 mm, ± ellipsoid, rugulose.
Style up to 6 mm long.
Anthers reflexed.
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Sexuality hermaphrodite
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Mature height (meter) 1.9 - 7.0
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Environment

Light -
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Soil texture 7-8
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Hardiness (USDA) 9-12

Usage

Uses animal food material medicinal
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Cultivation

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Images

Psydrax lividus unspecified picture

Distribution

Psydrax lividus world distribution map, present in Angola, Burkina Faso, Botswana, Congo, Cabo Verde, Kenya, Mozambique, Namibia, Tanzania, United Republic of, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:915410-1
WFO ID wfo-0000288171
COL ID 6WJJ3
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Plectronia junodii Plectronia livida Plectronia wildii Psydrax lividus Plectronia heliotropiodora Plectronia huillensis Plectronia syringodora Canthium huillense Canthium junodii Canthium lividum Canthium syringodorum Canthium clityophyllum Canthium gymnosporioides Canthium wildii