Psydrax kaessneri (S.Moore) Bridson

Species

Angiosperms > Gentianales > Rubiaceae > Psydrax

Characteristics

A shrub, often scandent to 3m. tall, usually with short lateral branches at right-angles to the stem, glabrous; young branches covered with pale greyish bark, often peeling in tissue-like flakes.. Leaves not restricted to apices of branches; blades broadly elliptic to round or sometimes obovate, 3–8 cm. long, 1.4–6 cm. wide, rounded or sometimes obtuse at apex, acute or occasionally obtuse at base, subcoriaceous to coriaceous, moderately shiny above; lateral nerves in 3–4 main pairs; tertiary nerves prominent and coarsely reticulate on both faces; domatia present as small punctured blisters; petioles 2–4 mm. long, glabrous; stipules 4–5 mm. long, with a short truncate to triangular base bearing a linear, strongly keeled lobe.. Flowers 5-merous, borne in subsessile 5–30-flowered, subumbellate cymes; peduncles up to 2 mm. long; pedicels 2–8 mm. long (but tending to be accrescent in fruit), glabrous; bracteoles inconspicuous.. Calyx-tube 1.25 mm. long, glabrous; limb reduced to a dentate rim, ciliate.. Corolla whitish; tube 4–5 mm. long, with a ring of deflexed hairs above mid-point inside; lobes oblong, 5–6 mm. long, 2.5 mm. wide, acute or obtuse.. Anthers reflexed, linear-oblong.. Style 9 mm. long; stigmatic knob (1.75–)2–2.5 mm. long.. Disk glabrous.. Fruit black when mature, slightly wider than long, 7–9 mm. long, 9–11 mm. wide, with prominent apex; pyrene almost semicircular in outline, acute and crested at top, rounded at base, rugulose.
More
Leaves not restricted to apices of branches; blades 3–8 × 1.5–6 cm, broadly elliptic to round or sometimes obovate, rounded or sometimes obtuse at apex, acute or occasionally obtuse at base, subcoriaceous to coriaceous, moderately shiny on upper surface; lateral nerves in 3–4 main pairs; tertiary nerves coarsely reticulate, prominent on both surfaces; domatia present as small punctured blisters; petioles 2–4 mm long, rather stout; stipules 4–5 mm long with a short truncate to triangular base bearing a linear keeled lobe.
Shrub to 3 m tall, often scandent, usually with short perpendicular lateral branches, glabrous; bark pale grey, often with tissue-like flakes peeling off the young stems.
Flowers 5-merous, borne in subsessile 5–30-flowered, subumbelliform cymes; peduncles up to 2 mm long; pedicels 2–8 mm long, glabrous; bracteoles inconspicuous.
Corolla whitish; tube 4–5 mm long, with a ring of deflexed hairs above the mid-point inside; lobes 6 × 2.5 mm, oblong, acute or obtuse.
Pyrene almost semicircular in outline, acute at apex, rounded at base, pale fawn-coloured, rugulose.
Calyx tube 1.25 mm long, glabrous; limb reduced to a dentate rim, ciliate.
Fruit 7–9 × 9–11 mm, prominent at the apex, black; pedicels accrescent.
Pollen presenter 2–2.5 mm long; disk glabrous.
Anthers reflexed.
Style 9 mm long.
Life form -
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Psydrax kaessneri world distribution map, present in Kenya, Mozambique, Somalia, and Tanzania, United Republic of

Identifiers

LSID urn:lsid:ipni.org:names:915407-1
WFO ID wfo-0000288165
COL ID 6WJFZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Plectronia longistaminea Psydrax kaessneri Canthium kaessneri