A revised generic classification for Aloe (Xanthorrhoeaceae subfam. Asphodeloideae) Author Grace, Olwen M. Jodrell Laboratory, Royal Botanic Gardens, Kew, Surrey TW 9 3 DS, United Kingdom. Email: o. grace @ kew. org & Botanic Garden & Herbarium, Natural History Museum of Denmark, Sølvgade 83 Opg. S, DK 1307 - Copenhagen K, Denmark. Email: NRonsted @ snm. ku. dk Author Klopper, Ronell R. Biosystematics Research and Biodiversity Collections Division, South African National Biodiversity Institute, Private Bag X 101, Pretoria 0001, South Africa. Email: g. smith @ sanbi. org. za; r. klopper @ sanbi. org. za & H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, 0002, South Africa. g.smith@sanbi.org.za Author Smith, Gideon F. Biosystematics Research and Biodiversity Collections Division, South African National Biodiversity Institute, Private Bag X 101, Pretoria 0001, South Africa. Email: g. smith @ sanbi. org. za; r. klopper @ sanbi. org. za & H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, 0002, South Africa. g.smith@sanbi.org.za Author Crouch, Neil R. School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4041, South Africa Author Figueiredo, Estrela Centre for Functional Ecology, Departamento de Ciências da Vida, Universidade de Coimbra, 3001 - 455 Coimbra, Portugal Ethnobotany Unit, South African National Biodiversity Institute, P. O. Box 52099, Berea Road 4007, South Africa. & Department of Botany, P. O. Box 77000, Nelson Mandela Metropolitan University, Port Elizabeth, 6031, South Africa. Author Rønsted, Nina Botanic Garden & Herbarium, Natural History Museum of Denmark, Sølvgade 83 Opg. S, DK 1307 - Copenhagen K, Denmark. Email: NRonsted @ snm. ku. dk Author Van Wyk, Abraham E. H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, 0002, South Africa. text Phytotaxa 2013 2013-01-07 76 1 7 14 http://dx.doi.org/10.11646/phytotaxa.76.1.2 journal article 10.11646/phytotaxa.76.1.2 1179-3163 5066711 1. Aloe welwitschii Klopper & Gideon F.Sm. , nom. nov . Haworthia angolensis Baker (1878: 263) . Chortolirion angolense (Baker) Berger (1908: 73) . Type:— ANGOLA . Huilla District: flowered November 1859 , F.M.J. Welwitsch 3756 ( holotype BM000911693!). Etymology: —Since the name Aloe angolensis Baker (1878: 263) already exists, this combination is not available for Chortolirion angolensis . The new name commemorates Friedrich Martin Josef Welwitsch (1806–1872), who collected the type specimen and is estimated to have made over 10,000 botanical collections in Angola , representing around 5,000 species ( Albuquerque et al. 2009 ).