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 2. Aloe barendii Klopper & Gideon F.Sm. , nom. nov . Haworthia tenuifolia Engler (1889: 2 , t. 1). Chortolirion tenuifolium (Engl.) Berger (1908: 73) . Type:— SOUTH AFRICA . Northern Cape : Kalahari Region, near Kuruman, R. Marloth 1049 ( holotype B100165765!, isotype PRE0037837-0!). Etymology: —Since the name Aloe tenuifolia Lamarck (1783: 87) already exists, this combination is not available for Chortolirion tenuifolium . The new name commemorates Barend [Ben] Hermanus Groenewald (1905–1976), who described several new aloes from South Africa during the 1930s and wrote the first book on the aloes of southern Africa that represented an up-to-date treatment for the subcontinent ( Groenewald 1941 ). Despite his valuable contributions towards our understanding of aloes in southern Africa, he did not receive the recognition he deserves and has never been commemorated in the genus Aloe ( Anonymous 2010 , Figueiredo & Smith 2010 ).