FZ volume:1 part:1 (1960) Flacourtiaceae by H. Wild
(Search other Kew databases for: Caloncoba welwitschii)
Caloncoba welwitschii (Oliv.) Gilg
in Engl., Bot. Jahrb. 40: 462 (1908). — Sleumer in Exell & Mendonça, C.F.A. 1 1: 82 (1937). Type from Angola. Oncoba welwitschii Oliv., F.T.A. 1: 117 (1868). Type as above.
Oncoba welwitschii Oliv.
F.T.A. 1: 117 (1868). Type as above.
N: Mugesse Forest, Misuku Hills, fl. & fr. x.1955, Chapman 165 (FHO).
N: Muatua, Nametil, fl. 21.vii.1948, Pedro & Pedrógão 4611 (LMJ; SRGH).
Angola; Belgian Congo; Cameroons; Gaboon; Nigeria; Tanganyika;
In the lower storey of evergreen forests and forest patches.
Small or medium sized tree up to c. 14 m. tall, branches glabrous or puberulous. Leaves collected towards the ends of the branches; lamina up to 25 x 18 cm., membranous, ovate, apex acuminate, base rounded or slightly cordate, 5-nerved from the base; petiole up to 15 cm. long; stipules up to 2.5 cm. long, subulate-aristate, caducous. Flowers up to 10 cm. in diam., scented, borne on the previous year’s branches or on older wood, appearing with the young leaves, in fascicles of 2–5; pedicels up to c. 2–5 cm. long, sparingly glandular. Sepals 2 x 1.3 cm., imbricate, very concave, glandular on exposed parts outside, oblong. Petals white, c. 10, about twice the size of the sepals, spathulate-oblong, tapering to a short basal claw, strongly veined towards the base. Stamens very numerous with slender filaments up to 2 cm. long; anthers linear, 4 mm. long, dehiscing by apical slits. Ovary tuberculate; placentas 5–6; style slender, c. 1 cm. long, stigma-lobes 5–6, linear, obtuse or capitate. Fruit a densely echinate capsule c. 8 cm. in diam. (including spines), with slender spines 1.5–2 cm. long, splitting into 5–6 recurved valves when ripe; style persistent. Seeds numerous, 6–7 mm. in diam., globose, puberulous.