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Kew Bulletin

, 74:38 | Cite as

Uapaca kirkiana (Phyllanthaceae) and its relatives in the northwest of the Zambezian region

  • Pierre MeertsEmail author
  • João N. M. Farminhão
Article

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.

Key Words

Angola dry tropical woodland D.R. Congo edible fruit miombo taxonomy Zambia 

Notes

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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Copyright information

© The Board of Trustees of the Royal Botanic Gardens, Kew 2019

Authors and Affiliations

  1. 1.Herbarium et bibliothèque de botanique africaineUniversité Libre de BruxellesBruxellesBelgium

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