Monotes angolensis De Wild.

6. Monotes angolensis De Wild. View in CoL

Monotes angolensis De Wild. (1927) 168. — Syntypes: Delevoy 502 (BR, seen in JSTOR), Democratic Republic of the Congo, 12 Dec.1921; Delevoy 523 ( BR,seen in JSTOR), Democratic Republic of the Congo, 21 Dec.1921 ; Gossweiler 2893 ( BM, BR, COI, K, LISC), Angola, Huila, Ganguelas , Feb. 1907 ; 2910 ( BM, BR, COI, K, LISC) Angola, Huila, Dongo, Forte Maria Pia , 8 Feb. 1907 .

Monotes oblongifolius Hutch.(1931) 248. — Type: Hutchinson & Gillet 3765 (holo K, seen in JSTOR), Zambia, Kaloswe , 16 July 1930.

Small tree up to 12 m tall, or shrub. Leaves 5– 8(–10) by 2–4(–5) cm, elliptic to obovate, discolor, obtuse, rounded, or slightly emarginate at the apex, rounded to cordate at the base; upper surface brown-coloured, smooth, with short penicillate hairs, more abundant on the midrib and lateral nerves; lower surface yellowish to brownish, tomentose, with straight and stellate hairs on the nerves, and dense minute hairs covering the interreticular areoles, lateral nerves in 11–18 pairs, not reaching the margin; petiole 1.1– 2.2 cm long, canaliculate. Inflorescences axillary, few-flowered, up to 2.5 cm long. Flowers with sepals c. 2 –3 mm long, petals 5–6 long, both tomentellous; anthers with a triangular appendage at the apex. Fruits subglobose, 1–1.2 cm diam; wings lanceolate, 2.5–5 by 0.6–1.2 cm.

Ecology — In Brachystegia woodlands and savanna woodlands; altitude 1500–1800 m.

Distribution — BE: Carrisso & Sousa 89 (LISC). – BI: Dechamps, Murta & Silva 1383 (LISC); Gossweiler 2893, 2910 (COI, LISC), 3945, 3945b (LISC). – CC: Mendes 2649 (LISC). – CU: Silva 3052 (LISC). – HA: Dechamps, Murta & Silva 1014, 1056 (LISC); Gossweiler 9663 (COI); Silva 2003 (LISC), 3673 (COI); Teixeira & Sousa 6444 (LISC). – HI: Mendonça 4605B (LISC); Santos 775 (LISC); Torre 8542 (LISC); Welwitsch 1077 (LISU). – MA: Dechamps, Murta & Silva 1420 (LISC). – MO: Barbosa 11068 (LISC). Also in the Democratic Republic of the Congo and Zambia.

Vernacular name — osuim-da-anhara ( Teixeira & Sousa 6444).

Note — The dimensions of leaf blades and petioles of some of the specimens identified as M. angolensis (e.g. Dechamps, Murta & Silva 1014, 1383) fall outside the ranges referred to by De Wildeman in the protologue of this species. Nevertheless, those specimens match the remaining characteristics of the species and it is known that juvenile plants can have leaves larger than mature ones. In addition, both Bancroft (1937) for Angola, and Duvigneau (1961) for the Flora Zambesiaca area, referred to larger leaf dimensions for this species than those cited in the protologue.