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This variety is accepted, and its native range is Tanzania to S. Tropical Africa.
A specimen from Kew's Herbarium

[FZ]

Dipterocarpaceae, P. Duvigneaud. Flora Zambesiaca 1:2. 1961

Morphology General Habit
Tree up to 12 m. high; branchlets tomentellous, becoming glabrous.
Morphology Leaves
Leaf-lamina 6–11 × 3·5–6 cm., elliptic to oblong or obovate-oblong, rounded to slightly emarginate and occasionally mucronate at the apex, rounded to slightly cordate at the base; upper surface smooth, persistently tomentellous, with minute, flexuous, geminate or penicillate hairs; lower surface discolorous, greyish, with relatively short cottony hairs on the nerves and reticulation and with the interreticular areoles densely covered with minute stellate hairs; midrib prominent beneath; lateral nerves in 12–16 pairs (with a strong tendency to the formation of short subsidiaries) curving towards the apex just before and without reaching the margin of the leaf; veins conspicuous; reticulation moderately conspicuous or not conspicuous, ± hidden by the indumentum; petiole 1–1·5 cm. long, rather slender.
Morphology Reproductive morphology Inflorescences
Inflorescences up to 6 cm. long, axillary, relatively lax, many-flowered, greyish- or fulvous-tomentose; pedicels 2–3 mm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals 3 mm. long, with a dense cottony tomentum.
Morphology Reproductive morphology Flowers Corolla
Petals 10 mm. long, densely rufous-sericeous-tomentose.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens with anthers produced into a rounded appendage.
Morphology Reproductive morphology Fruits
Fruit 1–1·5 cm. in diam., subglobose, rounded or slightly subconical at the apex; wings reddish or brownish, very variable in shape, suborbicular (2·5–2 cm. in diam.) to linear (5·5 × 0·8 cm.).

[FTEA]

Dipterocarpaceae, B. Verdcourt. Flora of Tropical East Africa. 1989

Morphology General Habit
Tree 6–15 m. tall, with bole up to 50 cm. diameter and a few slender ascending branches forming a regular crown; bark grey-brown, ± smooth but fissured or ridged, but also described as dark grey and reticulate; slash sometimes white but usually with outer bark pale red, inner orange-brown, sapwood yellow and heartwood dark brown; branchlets tomentose, becoming glabrous.
Morphology Leaves
Leaf-blades oblong, oblong-elliptic, sometimes slightly oblong-obovate or largest leaves ± rounded-elliptic, 3.5–13(–17) cm. long, 2–6(–10) cm. wide, rounded, rarely subacute or sometimes ± emarginate at apex, rounded to slightly cordate at the base, sparsely to densely puberulous or tomentellous above with mixed hairs but often soon glabrous, discolorous, very closely reticulate beneath, the veins thick and raised (sometimes appearing to be at different levels) but sometimes ± hidden by the white floccose-tomentose indumentum which is ± much less dense on or even ± absent from midrib and nerves, the areoles with stellate hairs; petiole 1–1.5(–2) cm. long.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, 4.5–9 cm. long, ± lax, many-flowered, the axes grey pubescent; pedicels 2–3 mm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate, 2.5–3 mm. long, ± 2 mm. wide, grey or brownish tomentose and with longer hairs.
Morphology Reproductive morphology Flowers Corolla
Petals cream or yellow, 8–10 mm. long, 2–3 mm. wide, densely reddish silky-tomentose outside.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers with connectives produced into a rounded appendage.
Morphology Reproductive morphology Fruits
Fruit 1–1.5 cm. diameter, tomentose; wings brownish crimson, or yellow tinged reddish, elliptic to oblanceolate or even ± rounded or linear, (1–)2.5–4(–5.5) cm. long, (0.5–)0.8–2 cm. wide.
Habitat
Brachystegia woodland on stony ridges, etc., also sparse lakeside woodland; 810–1740 m.
Distribution
T1 T4 T5 T6

Native to:

Angola, Burundi, Tanzania, Zambia, Zaïre, Zimbabwe

Monotes hypoleucus var. caloneurus (Gilg) Meerts appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Dawe, M.T. [324], Angola Monotes dawei K001208192 Unknown type material
Schweinfurth, G. [4272] Monotes caloneurus K000240367
Schweinfurth, G. [2678] Monotes caloneurus K000240368
Jan 28, 1938 Burtt, B. D. [6509], Tanzania Monotes elegans K001042001
Mungure, M. B. [4748], Tanzania Monotes elegans K001042005
Lindeman, H.A. [343], Tanzania Monotes elegans K001042004
Luke, Q. [12881], Tanzania Monotes elegans K001042003
Bullock, A.A. [2646], Tanzania Monotes elegans K001042006
Pocs, T. [6706/A], Tanzania Monotes elegans K001042002

First published in Phytotaxa 308(2): 186 (2017)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Backbone Distributions

  • Catarino, L., Martins, E.S., Abreu, J.A. & Figueira, R. (2013). Revision of the family Dipterocarpaceae in Angola Blumea 57: 263-274.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0