Skip to main content Skip to main navigation menu Skip to site footer
Published: 2021-07-27

Reinstatement of Aloe labiaflava (Asphodelaceae subfam. Alooideae), a distinctive species of maculate aloe endemic to the western Mpumalanga province of South Africa

Department of Botany, Nelson Mandela University, P.O. Box 77000, Gqeberha [Port Elizabeth], 6031 South Africa
Foundational Biodiversity Science Division, South African National Biodiversity Institute, Private Bag X101, Pretoria, 0001 South Africa, Department of Plant and Soil Sciences, University of Pretoria, Pretoria, 0002 South Africa
Monocots Aloe davyana Aloe longibracteata nomenclature taxonomy typification


The little-known Aloe labiaflava (Asphodelaceae subfam. Alooideae), which has for long been regarded as a hybrid between A. davyana and A. longibracteata, is reinstated as an accepted species endemic to a small area in the western Mpumalanga province of South Africa. It differs from both A. davyana and A. longibracteata in several reproductive morphological characters not present in these two species, especially by almost invariably producing only a single inflorescence per flowering season and by having a perianth that is distinctly flared at the mouth, with especially the external, apical ⅓ of the perianth conspicuously yellow.


  1. Glen, H.F. & Hardy, D.S. (1987) Nomenclatural notes on three southern African representatives of the genus Aloe. South African Journal of Botany 53 (6): 489–492.
    Glen, H.F., Smith, G.F. & Hardy, D.S. (1995) Notes on African plants: Asphodelaceae/Aloaceae: Typification of Aloe species described by B.H. Groenewald. Bothalia 25: 97–109.
    Groenewald, B.H. [as “B.H.G.”] (1936) ’n Nuwe aloesoort van Pretoria distrik [Aloe labiaflava]. Tydskrif vir Wetenskap en Kuns 14: 57–59.
    Groenewald, B.H. (1939) Aloe davyana var. subolifera. The Flowering Plants of South Africa 19: t. 732. []
    Groenewald, B.H. (1941) Die aalwyne van Suid-Afrika, Suidwes-Afrika, Portugees Oos-Afrika, Swaziland, Basoetoeland, en ’n spesiale ondersoek van die klassifikasie, chromosome en areale van die Aloe Maculatae. Die Nasionale Pers Beperk, Bloemfontein, 172 pp.
    Gunn, M.[D.] & Codd, L.E.[W.] (1981) Botanical exploration of southern Africa. An illustrated history of early botanical literature on the Cape flora. Biographical accounts of the leading plant collectors and their activities in southern Africa from the days of the East India Company until modern times. A.A. Balkema, Cape Town, 400 pp.
    Klopper, R.R., Crouch, N.R. & Smith, G.F. (2013) The 1930s—heyday of aloe discovery and description in southern Africa. Aloe 50: 7–13.
    Pole Evans, I.B. (1915) Descriptions of some new aloes from the Transvaal. Transactions of the Royal Society of South Africa 5: 25–35, + Plates V–XV.
    Reynolds, G.W. (1950) The aloes of South Africa. The Aloes of South Africa Book Fund, Johannesburg, 534 pp.
    Salm-Reifferscheidt-Dyck, J.F.M.A.H.I. (1837 [probably June]) Monographia generum aloes et mesembryanthemi, Fascicle 1. Maximillian Cohen, Bonn, 60 plates, 72 pp.
    Schönland, S. (1904) On some new and some little known species of South African plants. II. Records of the Albany Museum 1: 114–124. []
    Schönland, S. (1905) On some South African species of Aloe with special reference to those represented in the Herbarium of the Albany Museum. II. Records of the Albany Museum 1: 282–295. []
    Smith, G.F. & Figueiredo, E. (2015) Garden aloes. Growing and breeding cultivars and hybrids. Jacana Media (Pty), Ltd, Auckland Park, Johannesburg, 193 pp.
    Smith, G.F., Klopper, R.R., Crouch, N.R. & Figueiredo, E. (2020) Reinstatement of Aloe davyana (Asphodelaceae subfam. Alooideae), a winter-flowering species endemic to central-northeastern South Africa. Phytotaxa 475 (3): 201–208.
    Smith, G.F., Klopper, R.R., Crouch, N.R. & Figueiredo, E. (2021) Reinstatement of Aloe davyana var. subolifera (Asphodelaceae subfam. Alooideae), a distinctive variety of an endemic South African aloe. Phytotaxa 482 (2): 208–212.
    Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159: 1–254.
    Verdoorn, I.C. (1966) 1. Frederick Ziervogel van der Merwe. In: Verdoorn, I.C. & Codd, L.E. (Eds.) Hedendaagse plantkundiges en plantversamelaars. [2. Leslie Charles Leach]. Bothalia VIII Bylaag no. 1. (Bydraes deur die Navorsingsinstituut vir Plantkunde, Suid-Afrika, insluitende ‘n oorsig van hierdie Instituut se werksaamhede gedurende die tydperk 1 Julie 1964 tot 30 Junie 1965), pp. 59–60[–64].