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Abstract
Following on from the results of the research carried out by Nikulin et al. the author moves some names of Sedum L. ser. Rupestria Berger (Crassulaceae) to Petrosedum Grülich, in order to complete the transfer begun by Grülich in 1984 and to prepare the review of the genus. Several recombinations had already been made, but some of these are illegitimate; moreover there is an almost complete lack concerning the Iberian Peninsula. In this paper new combinations, names at a new rank and some additional synonyms are proposed for Sedum amplexicaule var. ciliatum Lange,Sedum boryanum Bory ex DC., Sedum fruticulosum Brot., Sedum sediforme var. congestiflora Cámara, Sedum s. var. dianium O. Bolòs, Sedum s. var. saguntinum O. Bolòs, Sedum tenuifolium subsp. ibericum ‘t Hart, Sempervivum anomalum Lag. and Sempervivum hispanicum Willd. Typifications are provided for Sedum amplexicaule var. ciliatum Lange, Sedum guadarramicum Sennen, Sempervivum anomalum Lag. and Sempervivum hispanicum Willd.
Acknowledgements
I am grateful to Olof Ryding (collection manager at C), Jordi Pallàs (Tècnic Herbari, Institut Botànic de Barcelona, BC) and Joaquim Santos (COI) for the photographs of the specimens of Sedum amplexicaule DC. var. ciliatum Lange (C), Sedum sediforme (Jacq.) Pau var. dianium O. Bolòs and Sedum s. var. saguntinum O. Bolòs (BC). Many thanks also to Ana Isabel D. Correia (LISU) for the information on the herbarium of F. Brotero and Thomas Rouillard (Resp. coll. bot., ANG), which has provided valuable data on the exsiccata of Bory de St.-Vincent. Finally I thank the staff of the Library of the University of Turin (Italy) for their support in the bibliographical research.