Rutidea orientalis Bridson

Species

Angiosperms > Gentianales > Rubiaceae > Rutidea

Characteristics

Scandent shrub or climber or ? sometimes a suffrutex, 1.8–6 m. tall; young branches usually densely covered with goldish to rust-coloured hairs, becoming glabrous with age; older branches with greyish fawn bark.. Leaf-blades drying green or brownish, somewhat discolourous, elliptic or less often broadly elliptic or oblanceolate, 4–15.3 cm. long, 2.1 –7(–8.5) cm. wide, acuminate at apex, obtuse to rounded and often unequal at the base, frequently bullate or with the lateral nerves impressed above, very sparsely to sparsely strigose above, more densely or occasionally sparsely covered with hairs beneath; domatia frequently absent or domatial hairy tufts straw-coloured; petiole 0.2–1.8 cm. long, pubescent; stipules 7–15 mm. long, base broad, divided into (3–)5–9(–12) fimbriae above, with long hairs outside, glabrous inside, sometimes reflexing.. Flowers 5-merous in hemispherical or less often shortly pyramidal, terminal panicles; lateral inflorescence-branches 1–2(–3) pairs, 0.3–2.4(–4 in fruit) cm. long, densely covered with gold to rust-coloured hairs; pedicels 0–1.5 mm. long; bracteoles numerous, linear-lanceolate to lanceolate, 2–11 mm. long, usually exceeding the calyx, pubescent.. Calyx-tube 0.75–1 mm. long, glabrous; limb-tube 0.25–1 mm. long; lobes narrowly lanceolate or narrowly triangular, 1.25–4 mm. long, up to 1 mm. wide at base, sparsely pubescent or glabrescent.. Corolla glabrous outside; tube 4–9 mm. long, 0.75–1 mm. wide at top; lobes ovate to rotund, 2.25–3.5 mm. long, (1–)1.25–2(–2.75) mm. wide, rounded or less often obtuse at apex.. Stigma well-exserted, fusiform 2–3 mm. long.. Fruit yellow, orange or red, 5–9 mm. in diameter, glabrous, with a corky scar left by the deciduous calyx-limb.. Seed reddish black to blackish, 4.25–5 mm. in diameter, sometimes with irregular shallow longitudinal striations.. Fig. 104.
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Leaf blades 4–15.5 × 2–7(8.5) cm, elliptic or less often broadly elliptic or oblanceolate, acuminate at apex, obtuse to rounded and often unequal at the base, frequently bullate or with the lateral nerves impressed above, very sparsely to sparsely covered with strigose hairs above, more densely or occasionally sparsely covered with hairs beneath; domatia frequently absent or as straw-coloured hairs; petiole 0.2–1.8 cm long, pubescent; stipules 7–15 mm long, broad at the base, laciniate with (3)5–9(12) lobes above, with long hairs outside, glabrous inside, sometimes reflexing.
A climber in the tree canopy. It can be 6 m tall. The leaves are opposite and broadly sword shaped. They are shiny and dark green above and paler with yellow hairs underneath. The flowers are in dense clusters. They are small and white. They have a strong scent. The fruit are 5-9 mm across. They are yellow or orange. They turn purple-black when ripe.
Flowers 5-merous in hemispherical or less often shortly pyramidal, terminal panicles; lateral inflorescence branches in 1–2(3) pairs, 0.3–2.4 (4 in fruit) cm long, densely covered with gold-to rust-coloured hairs; pedicels 0–1.5 mm long; bracteoles numerous, 2–11 mm long, linear-lanceolate to lanceolate, usually exceeding the calyx, pubescent.
Scandent shrub or climber or sometimes a ?suffrutex, 1.8–6 m tall; young branches usually densely covered with ± gold-to rust-coloured hairs, becoming glabrous with age; older branches with greyish-fawn bark.
Calyx tube 0.75–1 mm long, glabrous; limb 0.25–1 mm long; lobes 1.25–4 mm long, up to 1 mm wide at base, narrowly lanceolate or narrowly triangular, sparsely pubescent or glabrescent.
Seed 4.25–5 mm in diameter, sometimes with irregular shallow longitudinal striations, very pale pinkish when fresh darkening to reddish-black to blackish.
Corolla glabrous outside; tube 4–9 mm long; lobes 2.25–3.5 × (1)1.25–2(2.75) mm, ovate to rotund, rounded or less often obtuse at apex.
Fruit 5–9 mm in diameter, yellow, orange or red, glabrous, with a corky scar left by the deciduous calyx limb.
Pollen presenter 2–3 mm long, fusiform, well exserted.
Life form perennial
Growth form shrub
Growth support climber
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.8 - 6.0
Root system -
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Fruit color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant. It grow in the rain-forest from lowlands to the mountains. It grows in evergreen rain-forest between 350-1,600 m above sea level. It grows in deep shade along rivers.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The fruit is used for beer.
Uses material
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
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Optimum temperature (C°) -
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Productivity -

Distribution

Rutidea orientalis world distribution map, present in Burkina Faso, Kenya, Mozambique, Rwanda, Tanzania, United Republic of, Uganda, and Zimbabwe

Conservation status

Rutidea orientalis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:765685-1
WFO ID wfo-0000299054
COL ID 6WZCZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rutidea orientalis