TAXON 57 (2) • May 2008: 347–364 Winter & al. • Classification of African peucedanoid species APIACEAE SYSTEMATICS A new generic classification for African peucedanoid species (Apiaceae) Pieter J.D. Winter1,2, Anthony R. Magee1, Nonkululo Phephu1, Patricia M. Tilney1, Stephen R. Downie3 & Ben-Erik van Wyk1* 1 Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, Johannesburg, South Africa. *
[email protected] (author for correspondence) 2 South African National Biodiversity Institute, Private Bag X101, Pretoria 0001, South Africa 3 Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, U.S.A. The African species currently residing in Peucedanum L. and associated platyspermous genera are not related to the Eurasian Peucedanum species. As the type of the genus is P. officinale L., which is part of the Eurasian group, a new generic classification is proposed for the African group. The affinities and circumscriptions of two previously enigmatic monotypic genera, Afroligusticum C. Norman and Erythroselinum Chiov., are clari- fied. The former is expanded, while the latter is subsumed into Lefebvrea A. Rich. along with six Peucedanum species. New combinations are formalized for 49 of the 58 species recognised, which are accommodated in six genera, as follows: Afroligusticum (13 spp.), Afrosciadium P.J.D. Winter gen. nov. (18 spp.), Cynorhiza Eckl. & Zeyh. (3 spp.), Lefebvrea (10 spp.), Nanobubon A.R. Magee gen. nov. (2 spp.), and Notobubon B.-E. van Wyk gen. nov. (12 spp.). Ten new synonyms are presented, in Cynorhiza (2), Lefebvrea (6) and Notobubon (2). Diagnostic characters include habit (woody shrubs, perennial herbs or monocarpic herbs), seasonality (evergreen or deciduous), leaf texture and arrangement, inflorescence structure, fruit morphology (size, shape and wing configuration) and fruit anatomy.