Heinsenia diervilleoides K.Schum.

Species

Angiosperms > Gentianales > Rubiaceae > Heinsenia

Characteristics

Shrub or small understorey tree 3–12(–15) m. tall, with rather bushy crown and striate pale grey-brown bark; stems pale, glabrous or the young parts slightly pubescent, the bark ± fissuring longitudinally but not peeling off.. Leaf-blades often red when young or with the nerves red beneath, oblong to oblanceolate or oblong-elliptic or much narrower and lanceolate to oblanceolate, 5–16.5 cm. long, 1–7.7 cm. wide, acuminate at the apex, usually distinctly so with acute or attenuate point, rarely only shortly, cuneate at the base, slightly coriaceous, glabrous or very sparsely to densely adpressed bristly on the nerves beneath; petiole often red when young, 4–10 mm. long; stipules 4–7 mm. long, with thickened median part drawn out to a subulate point.. Inflorescence elements (1–)2–6(or more)-flowered; pedicels 2–5(–6) mm. long (the longest fruiting measurements) pubescent.. Calyx-tube 1–1.5 mm. long; limb 2–4 mm. long, the lobes with a median thickened part protruding as subulate apices from the thinner sinuses, or sometimes the limb splitting irregularly as well.. Corolla mostly white spotted with pink inside, but apparently often pure white or pure pink, narrowly campanulate, but strongly narrowed at the extreme base; tube (0.7–)0.9–1.2 cm. long, sparsely to densely adpressed pubescent outside; lobes ovate, (3.5–)5–8.5 mm. long, 4–6 mm. wide, obtuse.. Anthers included or exserted for 1/3 of their length.. Style white, glabrous, slightly 10-ribbed.. Fruit greenish purple, subglobose, 1.1–1.3 cm. diameter, slightly pubescent particularly near the persistent calyx and the pedicel.. Seeds ± ovoid or half-globose, 7 mm. long, 4.5 mm. wide, rugulose.
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Leaf blades often red when young or with the nerves red beneath, 5–16.5 × 1–7.7 cm, oblong to oblong-lanceolate or oblong-elliptic or much narrower and lanceolate to oblanceolate, acuminate at the apex, usually distinctly so with acute or attenuate point, rarely only shortly cuneate at the base, slightly coriaceous, glabrous or very sparsely to densely appressed bristly on the nerves beneath; petiole often red when young, 4–10 mm long; stipules 4–7 mm long with thickened median part drawn out to a subulate point.
Corolla mostly white spotted with pink inside but sometimes often pure white or pure pink, ?rarely with yellow markings, narrowly campanulate but strongly narrowed at the extreme base; tube (0.7)0.9–1.2 cm long, sparsely to densely appressed pubescent outside; lobes (3.5)5–8.5 × 4–6 mm, ovate, obtuse.
Calyx tube 1–1.5 mm long; limb with limb-tube and lobes ± equal in length, together 2–4 mm long, the lobes with a median thickened part protruding as subulate apices from the thinner sinuses, or sometimes the limb splitting irregularly as well.
Shrub or small understorey tree 3–12(15) m tall with a rather bushy crown and striate pale grey-brown bark; stems pale, glabrous or the young parts slightly pubescent, the bark ± fissuring longitudinally but not peeling off.
Fruit red-black to greenish-purple, subglobose, 1.1–1.3 cm in diameter, slightly pubescent particularly near the persistent calyx limb and the pedicel.
Inflorescence elements (1)2–6(or more)-flowered; pedicels 2–5(6) mm long (the longest fruiting measurements), pubescent.
Style white or pink, glabrous, slightly 10-ribbed towards upper part.
Anthers included or exserted for one third of their length.
Seeds ± ovoid or half-globose, 7 × 4.5 mm, rugulose.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.0 - 12.0
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 material
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

Heinsenia diervilleoides world distribution map, present in Kenya, Mozambique, Rwanda, Sudan, Tanzania, United Republic of, Uganda, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:753016-1
WFO ID wfo-0000981038
COL ID 6LGH3
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Aulacocalyx diervilleoides Heinsenia diervilleoides

Lower taxons

Heinsenia diervilleoides subsp. diervilleoides Heinsenia diervilleoides subsp. mufindiensis