Diospyros mweroensis F.White

Species

Angiosperms > Ericales > Ebenaceae > Diospyros

Characteristics

Small bushy semideciduous tree up to 10 m. tall; bark smooth, shed in large patches; slash bright yellow.. Leaves drying dark brown above, pale yellowish brown beneath, oblanceolate, oblong, oblanceolate-oblong or obovate-oblong, 2.5-10.5 cm. long, 1.2-3.5 cm. wide, usually shortly and abruptly acuminate at the apex, rarely acute or obtuse, cuneate to rounded at base, densely strigulose-setulose on nerves and veins beneath; lateral nerves in 5-9 pairs, prominent beneath, arcuate and anastomosing near the margin; tertiary nerves and venation forming a lax reticulum, slightly prominent beneath; petiole up to 5 mm. long.. Male flowers sweetly scented, subfasciculate or in shortly pedunculate cymes, 6-9-flowered, in axils of fallen leaves or on older branchlets; pedicels 2-3 mm. long, densely setulose-pubescent; calyx at first closed in bud, later cyathiform, 5 mm. long, 6 mm. wide, strigulose-tomentellous with dark brown hairs; margin subtruncate, with 4 broadly triangular lobes scarcely 1 mm. long; corolla cream, coriaceous, subrotate, 7-8 mm. long, fulvous-strigulose-tomentellous; corolla-tube 1.5-2 mm. long; corolla-lobes 4, tongue-shaped; stamens ± 50, far exserted, up to 6 mm. long; filaments up to 2.5 mm. long, inserted on the corolla-tube, setulose; anthers narrowly lanceolate, apiculate, with connective sparsely strigulose on abaxial surface.. Female flowers in 1-5-flowered fascicles on older leafless branchlets; pedicels 5-6 mm. long, tomentellous; bracts leafy, 9 mm. long, 5 mm. wide, soon falling; calyx cyathiform, 8 mm. long, brown velvety tomentellous outside, pale tomentellous inside, very shallowly and irregularly lobed at the apex; corolla cream, rotate, 1.3 cm. long; corolla-tube 4 mm. long and wide; corolla-lobes 4, ovate-tongue-shaped, 9 mm. long, 6 mm. wide, tomentellous outside where exposed in bud, glabrous where overlapped in bud; staminodes ± 16, 4 mm. long, inserted on the corolla-tube with densely setulose antherodes; ovary 3 mm. long and wide; common style 3 mm. long, densely strigulose; stigmas 4, fleshy, glabrous, irregularly lobed, 2 mm. long.. Fruit yellow at first, black when ripe, 2.5 cm. long, 2.2 cm. wide, apiculate, glabrous.. Seeds 8, black, ± date-shaped, 1.6 mm. long, 6 mm. wide, 4 mm. thick.. Fruiting calyx 1.4-1.7 cm. long, 2-2.4 cm. wide, glabrescent in patches outside, persistently and minutely strigulose inside.. Fig. 2/3.
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Leaves chartaceous, drying dark brown above, pale yellowish–brown beneath; lamina 3·2 x 1·2–9 .5 x 3·5 cm., oblanceolate, oblanceolate–oblong or obovate–oblong, apex usually shortly and abruptly acuminate, rarely acute or obtuse, base cuneate or rounded; lower surface densely strigulose–setulose on nerves and veins, less densely so on lamina; lateral nerves in 5–9 pairs, prominent beneath, arcuate and anastomosing near the margin; tertiary nerves and veins forming a lax reticulum, slightly prominent beneath.
Stamens c. 50, far–exserted, up to 0–6 cm. long, filaments up to 0–25 cm. long, setulose, inserted on corolla–tube; anthers narrowly lanceolate, apiculate, connective sparsely strigulose on abaxial surface.
Calyx at first closed in bud, at anthesis cyathiform, 0·5 x 0·6 cm., strigulose–tomentellous with dark brown hairs, margin subtruncate with 4 broadly deltate lobes scarcely 0·1 cm. long.
Male flowers subfasciculate or in shortly pedunculate cymes, 6–9 together in axils of fallen leaves or on older branchlets; pedicels 0·2–0·3 cm. long, densely setulose–pubescent.
Corolla 1·3 cm. long, rotate; tube 0·4 x 0·4 cm., lobes 4, ovate–lingulate, 0· x 0· cm., outer surface tomentellous where exposed in bud, glabrous where overlapped in bud.
Female flowers in 1–5–flowered fascicles on older leafless branchlets; pedicels 0·5–0·6 cm. long, tomentellous; bracts foliaceous, 0·9 x 0·5 cm., caducous.
Calyx 0–8 cm. long, cyathiform, brown–velutinous–tomentellous outside, paler tomentellous inside, very shallowly and irregularly lobed at apex.
Ovary 0· x 0· cm.; common style 0·3 cm. long, densely strigulose, ending in 4 fleshy, glabrous, 0·2 cm. long, irregularly lobed stigmata.
Corolla coriaceous, subrotate, 0·7–0·8 cm. long, fulvous–strigulose–tomentellous; tube 0·15–0·2 cm. long; lobes 4, Ungulate.
Fruiting calyx 1·4 x 2·4 cm., glabrescent in patches outside, persistently and minutely strigulose inside.
Staminodes c. 16, 0· cm. long, inserted on corolla–tube; antherodes densely setulose.
Fruit apiculate, yellow at first, black when ripe, c. 2·5 x 2·2 cm., glabrous.
Small, bushy, semi–deciduous tree up to 10 m. high.
Bark smooth, shed in large irregular scales.
Seeds 8, black, 1·6 x 0·6 x 0·4 cm.
Life form -
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality dioecy
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Mature height (meter) 10.0
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

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Usage

Uses medicinal
Edible -
Therapeutic use -
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Cultivation

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Distribution

Diospyros mweroensis world distribution map, present in Tanzania, United Republic of and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:322745-1
WFO ID wfo-0000649383
COL ID 6CWMD
BDTFX ID -
INPN ID -
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Wikipedia (FR)

Synonyms

Diospyros mweroensis