A new definition of the genus Petrocodon (Gesneriaceae) Author Weber, Anton Department of Structural and Functional Botany, Faculty of Biodiversity, University of Vienna, Austria & Authors for correspondence; e-mails: anton. weber @ univie. ac. at, m. moeller @ rbge. ac. uk Author Wei, Yi-Gang Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China Author Puglisi, Carmen Royal Botanic Garden Edinburgh, 20 A Inverleith Row, Edinburgh EH 3 5 LR, Scotland, U. K. Author Wen, Fang Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China Author Mayer, Veronika Department of Structural and Functional Botany, Faculty of Biodiversity, University of Vienna, Austria Author Möller, Michael Royal Botanic Garden Edinburgh, 20 A Inverleith Row, Edinburgh EH 3 5 LR, Scotland, U. K. & Authors for correspondence; e-mails: anton. weber @ univie. ac. at, m. moeller @ rbge. ac. uk text Phytotaxa 2011 2011-05-16 23 49 67 http://biotaxa.org/Phytotaxa/article/view/phytotaxa.23.1.3 journal article 6230 10.11646/phytotaxa.23.1.3 b0e14ab3-20b3-4c5e-9a70-a6adc21b0cbd 1179-3163 4894038 Petrocodon bonii (Pellegr.) A.Weber & Mich.Möller , comb. nov. Basionym:— Didymocarpus bonii Pellegrin (1926: 416) . Homotypic synonym:— Calcareoboea bonii (Pellegr.) Burtt (2001: 86) . Notes:—Molecular data are lacking for this species, the transfer is fide Burtt (2001) , who included Didymocarpus bonii in Calcareoboea as a second species and predicted (correctly) that also D. hancei is closely allied to Calcareoboea . Nevertheless, confirmation is needed.