Kew Bulletin

, 71:16 | Cite as

A synopsis of Aptosimum and Peliostomum (Scrophulariaceae) in Namibia, including the description of a new species, Aptosimum radiatum, and keys to all accepted species

  • Herta Kolberg
  • Michiel van SlagerenEmail author


An account of species of the genera Aptosimum and Peliostomum occurring in Namibia is presented, together with an updated key for all accepted species of these genera. The sinking of Peliostomum in Aptosimum is discussed and rejected. A new species from Namibia, Aptosimum radiatum, is described. Species descriptions, global and Namibian distributions, conservation status, habitat and phenological information are presented for the 16 Aptosimum and three Peliostomum species recognised from Namibia. The type for Peliostomum is designated. Arguments are presented for the choice of one neotype for an accepted species, as well as 29 lectotypes: 15 for names of accepted species, 14 for synonyms.

Key Words

Generic concept keys lectotypification neotypification taxonomy 



The Millennium Seed Bank Partnership is acknowledged for funding of fieldtrips. In Namibia, the Ministry of Environment and Tourism is thanked for the plant collecting permit and the National Botanical Research Institute (NBRI), Ministry of Agriculture, Water and Forestry for use of their facilities. Patricia Craven is thanked for her contributions to fieldwork and for getting some of the herbarium specimen data onto a BRAHMS database, while Tyrone Tholkes is gratefully acknowledged for assistance during fieldwork. At Kew we are grateful to Juliet Beentje for her wonderful line drawing of the new species and to Dr Wolfgang Stuppy for his improvement of the images and maps. Jacek Wajer (BM), Fátima Sales Machado (COI) and Reto Nyffeler (Z) are thanked for identifying type specimens. HK thanks the curators of K, NBG, SAM and WIND for making their collections available for study. We thank the reviewers for useful suggestions and improvements.


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Copyright information

© The Board of Trustees of the Royal Botanic Gardens, Kew 2016

Authors and Affiliations

  1. 1.Millennium Seed Bank PartnershipNational Botanical Research InstituteWindhoekNamibia
  2. 2.Identification & Naming DepartmentRoyal Botanic GardensKewUK

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