Bothalia 41,2 (2011)
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Berruti 53B (PRE!); 26°40'59.76" S, 28°51'42.6" E, fl. 3-10-2009, Berruti 52 (PRE!); Lucas Kloppers’ farm, 26°39'49.92" S, 28°51'57.78" E (sight record, S. Berruti); Farm Platkop, 543 IR, rocky area adjacent to district road, 26°39'46" S, 28°51'54" E, fl. 22-02-2009, McCleland PRE850944 (PRE! in spirits).
ACKNOWLEDGEMENTS
Tony de Castro, Warren McCleland, Charles Craib and Gillian Condy are thanked for bringing the location of this species to our attention. We are grateful to Mpumalanga Parks Board for granting a collection permit for obtaining the material.
PLOWES, D.C.H. 2004. Orbea elegans Plowes sp. nov. , an attractive new stapeliad from northern South Africa (Apocynaceae–Asclepiadoideae–Ceropegieae). Asklepios 90: 14–17. PLOWES, D.C.H. 2007. Two new stapeliads from Yemen. Excelsa 21: 11–14. PLOWES, D.C.H. 2008. Angolluma taitica (Bruyns) Plowes comb. nov. Asklepios 103: 4. PLOWES, D.C.H. 2009. The Transkei Orbea saga. Asklepios 105: 9–18. PLOWES, D.C.H. 2010. When is a Caralluma not a Caralluma? Asklepios 107: 3–22. RAFFAELLI, M., MOSTI, S. & TRADELLI, M. 2008. Apocynaceae of Oman: Orbea nardii, sp. nov. and Pentatropis bentii, first finding. Webbia 63: 161–167. S.P. BESTER* and S.M. BERRUTI**
REFERENCES BRUYNS, P.V. 2002. Monograph of Orbea and Ballyanthus (Apocynaceae–Asclepiadoideae–Ceropegieae). Systematic Botany Monographs 63: 1–195. BRUYNS, P.V. 2005. Stapeliads of southern Africa and Madagascar, vol. 1. Umdaus Press, Hatfield, Pretoria. MEVE, U. 2009. Taxonomic changes in Arabian taxa of Orbea Haw. (Ceropegieae). Asklepios 105: 19–22.
* Author for correspondence: National Herbarium (PRE), South African National Biodiversity Institute, Private Bag X101, 0001 Pretoria. E-mail:
[email protected]. ** School of Environmental Sciences and Development, Private Bag X6001, North-West University, 2520 Potchefstroom / P.O. Box 426, 2415 Greylingstad. MS. received: 2010-08-18.
HYACINTHACEAE ORNITHOGALUM LEBAENSE TRANSFERRED TO ALBUCA
Extensive phylogenetic analysis of nuclear and plastid DNA sequence data has unequivocally demonstrated that Ornithogalum L. is paraphyletic as traditionally circumscribed (e.g. Obermeyer 1978). Two alternative, generic treatments for subfamily Ornithogaloideae have recently been proposed, both derived essentially from the same data set and representing alternative hierarchical treatments of comparable monophyletic groups. The more conservative (Manning et al. 2009) recognizes four genera: Dipcadi Medik. and Pseudogaltonia (Kuntze) Engl. remain as conventionally circumscribed; Albuca L. is enlarged to include Ornithogalum subgen. Osmyne and subgen. Urophyllon; and Ornithogalum includes the remaining species in the genus plus Galtonia Decne. and Neopatersonia Schönland. In this system, the major lineages within Albuca and Ornithogalum are treated as subgenera and sections. The second option (Martínez-Azorín et al. 2011) is a much more radical departure from the traditional classification, treating all major lineages at generic level, resulting in the recognition of 19 genera in the subfamily, many of them new. Although theoretically defensible, the practical value of this option in sub-Saharan Africa is severely limited by the low level of morphological support for several of the genera. One consequence of this is that the South African species O. toxicarium C.Archer & R.H.Archer remains unplaced in this classification until molecular data are forthcoming. The recently described Ornithogalum lebaense Van Jaarsv. (2010) from Angola is currently unplaced in either classification but is closely allied to the taxon previously treated as O. longibracteatum Jacq. (Obermeyer 1978) and now treated either as Albuca bracteata (Thunb.) J.C.Manning & Goldblatt (Manning et al. 2009) or as Stellarioides canaliculata Medik. (Martínez-
Azorín et al. 2011). As we have already argued (Manning et al. 2009), we favour a more conservative treatment of the genera and have already implemented this treatment in various local floras. We therefore advocate treating this species in Albuca subgen. Urophyllon (Salisb.) J.C.Manning & Goldblatt and provide the requisite new combination to facilitate this. Albuca lebaensis (Van Jaarsv.) J.C.Manning & Goldblatt, comb. nov. Ornithogalum lebaense Van Jaarsv. in Herbertia 64: 92 (2010).
REFERENCES MANNING, J.C., FOREST, F., DEVEY, D.S., FAY, M.F. & GOLDBLATT, P. 2009. A molecular phylogeny and a revised classification of Ornithogaloideae (Hyacinthaceae) based on an analysis of four plastid DNA regions. Taxon 58: 77–107. MARTÍNEZ-AZORÍN, M., CRESPO, M.B., JUAN, A. & FAY, M. 2011. Molecular phylogenetics of subfamily Ornithogaloideae (Hyacinthaceae) based on nuclear and plastid DNA regions, including a new taxonomic arrangement. Annals of Botany 107: 1–37. OBERMEYER, A.A. 1978. Ornithogalum: a revision of the southern African species. Bothalia 12: 323–376. VAN JAARSVELD, E.J. 2010. Ornithogalum lebaense, a new cliffdwelling Ornithogalum (Hyacinthaceae) from southwest Angola (Benguella Province). Herbertia 64: 91–103. J.C. MANNING* and P. GOLDBLATT** * Compton Herbarium, South African National Biodiversity Institute, Private Bag X7, 7735 Claremont, Cape Town / Research Centre for Plant Growth and Development, School of Biological and Conservation Sciences, University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, 3209 Scottsville, South Africa. ** B.A. Krukoff Curator of African Botany, Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166, USA. MS. received: 2011-03-31.
