Tannodia swynnertonii Prain

Species

Angiosperms > Malpighiales > Euphorbiaceae > Tannodia

Characteristics

A small to medium-sized tree up to 12 m.. Bark grey to dark brown.. Twigs greyish brown.. Young shoots and petioles glabrous.. Petioles 0.5–3 cm. long, distally and proximally pulvinate; leaf-blade broadly ovate to elliptic-ovate, (4–)10–15 cm. long, (2–) 4.5–9 cm. wide, obtusely acuminate, cuneate, rounded, truncate or shallowly cordate, entire, firmly membranous or slightly coriaceous, 3(–5)-nerved from the base, lateral nerves 5–7 pairs, midrib and main nerves scarcely prominent above, fairly prominent beneath, glabrous above and beneath except for minute tufts of hairs in the axils of the main nerves beneath, medium green above, paler beneath.. Stipules lanceolate, 2–3 mm. long, very fugacious.. Male inflorescences up to 20 cm. long; axis glabrous; bracts ovate-lanceolate, 3 mm. long, acutely acuminate, glabrous, several-flowered.. Male flowers: pedicels up to 4 mm. long, sparingly pubescent; calyx-lobes ovate, 2–3 mm. long, obtuse, pubescent without in the upper half, glabrous within; petals suborbicular-obovate, 3–3.5 mm. long, rounded at the apex, glabrous without, pubescent within at the base, white or creamy white; disc-glands subglobose; stamens 3–4 mm. long, filaments glabrous, anthers 1 mm. long, white.. Female inflorescences up to 10 cm. long; axis glabrous; bracts 1-flowered, otherwise as in the ♂ inflorescence.. Female flowers: pedicels 3–4 mm. long, evenly pubescent; calyx-lobes triangular, 1 mm. long, acute or subacute, pubescent without, glabrous within, green; petals suborbicular, 3–4 mm. long, rounded at the apex, glabrous, creamy; disc 1.5 mm. diameter; ovary 1.5 mm. diameter, densely fulvous tomentose; styles 1–1.5 mm. long.. Fruit 1.3–1.5 cm. long, 1.2 cm. diameter, smooth, evenly finely pubescent.. Seeds 9–10 mm. long, smooth, somewhat shiny, dark brown.. Fig. 32.
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Female flowers: pedicels 3–4 mm long, pubescent; sepals 1 mm long, triangular, subacute, pubescent without, glabrous within, green; petals 3–4 × 2.5 mm, suborbicular, rounded, glabrous, pale yellow or creamy-green; disk 1.5 mm in diameter; ovary 1.5–2 mm in diameter, densely fulvous-tomentose; styles 1–1.5 mm long.
Male flowers: pedicels up to 4 mm long, glabrous; calyx lobes 2–3 × 2 mm, ovate, obtuse, pubescent without, glabrous within; petals 3–3.5 × 2–2.5 mm, obovate-suborbicular, rounded, glabrous without, pubescent within at the base, creamy-white; disk glands subglobose; stamens 4–5 mm long, anthers 1 mm long, white.
Leaf blades 4–13 × 2–7 cm, elliptic-ovate, acuminate at the apex, entire or subentire on the margins, cuneate to rounded or ± truncate at the base, firmly chartaceous to thinly coriaceous, glabrous except for the domatial hair tufts on lower surface; main nerves 3–5 from the base, lateral nerves in 5 pairs.
Male inflorescences up to 23 cm long; bracts resembling the stipules, but slightly larger.
Fruit 1–1.5 × 0.9–1.4 cm, ± smooth or shallowly muricate, evenly pubescent.
Seeds 9 × 6.5 mm, ovoid-ellipsoid, smooth, ± shiny, dark brown.
Female inflorescences up to 19 cm long; bracts 1-flowered.
Trunk buttressed, or slightly fluted at the base.
Twigs, petioles and inflorescence axes glabrous.
Stipules 1.5 mm long, lanceolate, soon falling.
Petioles 0.5–3 cm long, pulvinate.
A tree up to 30 m in height.
Bark smooth, dark brown.
Wood hard.
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Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality polygamodioecy
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Photosynthetic pathway c3

Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Tannodia swynnertonii world distribution map, present in Mozambique, Tanzania, United Republic of, and Zimbabwe

Conservation status

Tannodia swynnertonii threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:356829-1
WFO ID wfo-0000320773
COL ID 7BJZW
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Tannodia swynnertonii Croton swynnertonii