Summary
The complex of Uapaca kirkiana is revised in the northwest of the Zambezian region (Angola, D.R. Congo, Zambia) based on herbarium taxonomy. Five taxa are recognised, i.e. Uapaca kirkiana Müll.Arg. var. kirkiana, U. kirkiana var. gossweileri (Hutch.) Meerts, U. kirkiana var. benguelensis (Müll.Arg.) Meerts, U. teusczii Pax f. teusczii and U. teusczii f. pilosa (P.A.Duvign.) Meerts. A determination key is provided. Specimens lacking curly hairs on leaves have long been misinterpreted or overlooked. The name U. teusczii Pax is resuscitated to accommodate such specimens. New diagnostic characters of U. teusczii are highlighted including a glabrous ovary, anthers with ciliate connectives and the pubescent calyx of female flowers. Uapaca teusczii is a characteristic species of the wet miombo, widespread in Katanga and Kwango (D.R. Congo), extending locally to Angola and N Zambia. A lectotype is selected for U. albida, U. homblei, U. kirkiana var. benguelensis, U. kirkiana var. gossweileri, and U. teusczii f. pilosa; second-step lectotypification is provided for U. munamensis.
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Akinnifesi, F. K., Kwesiga, F., Mhango, J., Chilanga, T., Mkonda, A., Kadu, C. A. C., Kadzere, I., Mithofer, D., Saka, J. D. K., Sileshi, G., Ramadhani, T. & Dhliwayo, P. (2006). Towards the development of miombo fruit trees as commercial tree crops in Southern Africa. For. Trees and Livelihoods 16: 103 – 121.
Albuquerque, S., Brummitt, R. K. & Figueiredo, E. (2009). Typification of names based on the Angolan collections of Friedrich Welwitsch. Taxon 58(2): 641 – 646.
Baillon, H. (1858). Uapaca. In: H. Baillon (ed.), Étude Générale du groupe des Euphorbiacées, pp. 595 – 596. Victor Masson, Paris.
Coates Palgrave, M. (2005). Keith Coates Palgrave Trees of Southern Africa, 3rd ed. Struik Nature, Capetown.
Coates Palgrave, O. H., Coates Palgrave, K., Coates Palgrave, D. & Coates Palgrave, P. (1957). Trees of Central Africa. National Publication Trust Rhodesia and Nyassaland, Salisbury.
De Candolle, A. (1866). Prodromus Systematis Naturalis Regni Vegetabilis, Vol. 15. Victor Masson, Paris.
Delevoy, G. (1929). La question forestière au Katanga. II. Les essences forestières du Katanga. Office de publicité, Bruxelles.
Devred, R. (1957). Limite phytogéographique occidento-méridionale de la Région Guinéenne au Kwango. Bull. Jard. Bot. État Bruxelles 27: 417 – 431.
Devred, R., Sys, C., & Berce, J. M. (1958). 10. Kwango. A et B. Notice explicative de la carte des sols et de la végétation. INEAC, Bruxelles.
De Wildeman, E. (1926). Matériaux pour la flore forestière du Congo Belge. X. Notes préliminaires sur deux Uapaca (Euphorbiacées) du Katanga. Ann. Soc. Sci. Bruxelles 45: 309 – 312.
De Wildeman, E. (1932). Matériaux pour la flore forestière du Congo Belge. XX. Notes préliminaires sur trois Uapaca (Euphorbiacées) nouveaux pour la flore congolaise. Ann. Soc. Sci. Bruxelles, Sér. B 52: 204 – 209.
De Wildeman, E. (1933a). Matériaux pour la flore forestière du Congo Belge. XXI. Sur trois Uapaca (Euphorbiacées) nouveaux du Katanga. Ann. Soc. Sci. Bruxelles, Sér. B 53: 56 – 62.
De Wildeman, E. (1933b). Matériaux pour la flore forestière du Congo Belge XXIII. Trois Uapaca (Euphorbiacées) congolais. Ann. Soc. Sci. Bruxelles, Sér. B 53: 307 – 312.
De Wildeman, E. (1936). Contributions à l’étude des espèces du genre Uapaca Baill. (Euphorbiacées). Mém. Inst. Roy. Colon. Belge, Sect. Sci. Nat. IV(5): 1 – 192.
De Wildeman, E. & Staner, P. (1933). Contribution à l’étude de la flore du Katanga. Supplément 5. Comité spécial du Katanga, Bruxelles.
Duvigneaud, P. (1949). Les « Uapaca » (Euphorbiacées) des forêts claires du Congo méridional. Bull. Séances Inst. Roy. Colon. Belge 20: 863 – 892.
Engler, A. (1910). Die Pflanzenwelt Afrikas insbesondere seiner tropische Gebiete. IX. (1). Engelmann, Leipzig.
Figueiredo, E. & Smith, G. F. (2008). Plants of Angola. Strelitzia 22.
Germain, R. (1949). Reconnaissance géobotanique dans le nord du Kwango. Série Scientifique, 43. Institut national pour l’étude agronomique du Congo belge, Bruxelles.
Hiern, W. P. (1900). Catalogue of the African plants collected by F. Welwitsch in 1853 – 1861. Dicotyledons, 4. British Museum (Natural History), London.
Hutchinson, J. (1912a). 1321. Uapaca gossweileri. Bull. Misc. Inform., Kew 1912: 101 – 102.
Hutchinson, J. (1912b). Uapaca. In: W. T. Thiselton-Dyer (ed.), Flora of Tropical Africa 6 (1): 634 – 642. Lovell Reeve & Co, London.
Lebrun, J.-P. & Stork, A. (2006). Tropical African Plants. Ecology and distribution. 2. Euphorbiaceae-Dichapetalaceae. Conservatoire et Jardin botaniques, Genève.
Malaisse, F. (1997). Se nourrir en forêt claire africaine. Approche écologique et nutritionnelle. Les Presses agronomiques de Gembloux & CTA, Gembloux & Wageningen.
Meerts, P. (2016). An annotated checklist to the trees and shrubs of the Upper Katanga (D.R. Congo). Phytotaxa 258: 201 – 250.
Meerts, P. & Hasson, M. (2016). Arbres et arbustes du Haut-Katanga. Jardin botanique Meise, Meise.
Müller Argoviensis, J. (1864a). Neue Euphorbiaceen des Herbariums Hooker in Kew, auszugweise vorläufig mitgetheilt aus dem Manuscript für De Candolle’s Prodromus. Flora 47: 513 – 520.
Müller Argoviensis, J. (1864b). Euphorbiaceae novae a Cl. Dr. Welwitsch in Africa aequinoctiali occidentali lectae. J. Bot. 2: 327 – 339.
Mwase, W., Mtalika, L., Kachamba, D. J. & Kwapata, M. B. (2015). Growth performance of Uapaca kirkiana Müell. Arg provenances in a breeding seedling orchard in Malawi. J. Biodivers. Managem. Forest. 4: 2. https://doi.org/10.4172/2327-4417.1000141.
Ngulube, M. R., Hall, J. B. & Maghembe, J. A. (1996). A review of the silviculture and resource potential of a miombo fruit tree: Uapaca kirkiana (Euphorbiaceae). J. Trop. Forest Sci. 8: 395 – 411.
Pax, F. (1894). Euphorbiaceae africanae. II. Bot. Jahrb. Syst 19: 76 – 127.
Pax, F. (1904). Euphorbiaceae africanae VII. Bot. Jahrb. Syst. 34: 368 – 376.
Pax, F. & Hoffmann, K. (1922). Euphorbiaceae-Phyllanthoideae-Phyllanthaceae-Uapacinae. In: A. Engler (ed.), Das Pflanzenreich, IV, fam. 147. XV, pp. 298 – 311. Wilhelm Engelmann, Leipzig.
Phiri, P. S. M. (2005). A checklist of Zambian vascular plants. Southern African Botanical Diversity Network Report No. 32. SABONET, Pretoria.
Radcliffe-Smith, A. (1988). 74. Uapaca. In: R. M. Polhill (ed.), Euphorbiaceae (Part 2): pp. 566 – 571. Flora of Tropical East Africa. Balkema, Rotterdam.
Radcliffe-Smith, A. (1993). Notes on African Euphorbiaceae XXIX: Uapaca. Kew Bull. 48: 611 – 617. https://doi.org/10.2307/4118724
Radcliffe-Smith, A. (1996). Euphorbiaceae. In: G. V. Pope (ed.), Flora Zambesiaca 9: 1 – 337. Royal Botanic Gardens, Kew.
Robyns, W. (1948). Les territoires phytogéographiques du Congo belge et du Ruanda-Urundi. Atlas géneral du Congo belge. Institut Royal Colonial Belge, Bruxelles.
Smith, P. & Allen, Q. (2004). Field guide to the trees and shrubs of the miombo woodlands. Royal Botanic Gardens, Kew.
van Wyk, B. & van Wyk, P. (1997). Field guide to trees of southern Africa. Struik Nature, Cape Town.
Werger, M. J. A. & Coetzee, B. J. (1978). The Sudano-Zambezian region. In: M. J. A. Werger (ed.), Biogeography and ecology of southern Africa, pp. 301 – 462. Junk, The Hague.
White, F. (coll. Angus, A.) (1962). Forest flora of Northern Rhodesia. Oxford University Press, Oxford.
White, F. (1983). The vegetation of Africa. A descriptive memoir to accompany the Unesco/AETFAT/UNESCO vegetation map of Africa. Unesco, Paris.
Acknowledgements
We are grateful to Tariq Stévart (Missouri Botanical Garden) for assistance in the production of distribution maps and to Guy Josens (Université Libre de Bruxelles) for assistance in taking microphotographs. Michel Hasson (Biodiversité au Katanga, Lubumbashi) is gratefully acknowledged for allowing us to use his photographs. We are grateful to the curators of the following herbaria for welcoming us in their collections: BM, BR, COI, K, LISC, LISU, P, POZG. JNMF is a research fellow of the FRIA-FNRS (Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture, Belgium).
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Meerts, P., Farminhão, J.N.M. Uapaca kirkiana (Phyllanthaceae) and its relatives in the northwest of the Zambezian region. Kew Bull 74, 38 (2019). https://doi.org/10.1007/s12225-019-9826-1
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DOI: https://doi.org/10.1007/s12225-019-9826-1