Pterocarpus lucens subsp. antunesii (Taub.) Rojo

Flora Zambesiaca Leguminosae subfamily Papillionoideae byJ.M. Lock*

Morphology General Habit

Deciduous tree, often branched from the base, up to 12 m tall; crown spreading or irregular; bark greyish, flaking off in plates.

Morphology General Indumentum

Young parts appressed-pubescent, soon glabrous; branchlets glabrous, bark reddish-brown.

Morphology Leaves

Leaves up to 12 cm long; petiole 1–3 cm long, rachis 3–6 cm long, sparsely puberulous or glabrous; petiolules 1.5–3 mm long; leaflets 1–9(11), subopposite to alternate, 2.5–5 × 1.5–3.5 cm, ovate to elliptic or oblong-ovate, rounded or obtuse or acute and sometimes emarginate at the apex, rounded or obtuse or cuneate at the base, glabrous on upper surface, minutely appressed-puberulous or glabrous beneath; lateral nerves in 4–6 pairs, these and the reticulation scarcely visible on either surface; stipules 5–8 mm long, linear, caducous.

Morphology Reproductive morphology Inflorescences

Inflorescence of axillary racemes 4–16 cm long, hairy or glabrous; bracts and bracteoles caducous.

Morphology Reproductive morphology Flowers

Flowers 15–18 mm long; pedicels rather slender, 10–18 mm long.

Morphology Reproductive morphology Flowers Calyx

Calyx 3.5–5 mm long, thinly appressed-pubescent outside, ciliolate on the teeth-margin; teeth obtuse to acute.

Morphology Reproductive morphology Flowers Corolla

Standard circular, 12–15 mm in diameter, claw c.3.5 mm long; wings nearly as long as the standard, auricle rounded, claw c.4 mm long; keel petals shorter than the wings, free, dorsally slightly overlapping.

Morphology Reproductive morphology Flowers Androecium Stamens

Stamens 9 fused, the upper one free for much of its length.

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary 2–3-ovulate, appressed-pilose on the sutures; style 3–4 mm long, glabrous; stipe short, puberulous.

Morphology Reproductive morphology Fruits

Pod 1(2)-seeded, 3–4 × 2.5–5 cm, obovate or oblong-obovate, often somewhat incurved, narrowly winged, apex rounded, base obtuse or cuneate, veined or smooth over the seed; style-base at the apex or nearly so.

Distribution

Also in S Angola and Namibia.

Ecology

In open woodlands and Baikiaea forest, often on Kalahari sands and in rocky places; 40–1200 m.

Conservation

Conservation Status: A widespread taxon. Lower Risk, Least Concern.

Use

Wood