Gardens’ Bulletin Singapore 68(1): 1–63. 2016 1 doi: 10.3850/S2382581216000016 A revision of Aeschynanthus (Gesneriaceae) in Singapore and Peninsular Malaysia D.J. Middleton Herbarium, Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, Singapore 259569
[email protected] ABSTRACT. The genus Aeschynanthus Jack is revised for Singapore and Peninsular Malaysia. Four species for Singapore and fourteen species for Peninsular Malaysia are recognised, keys to the species are given, all names are typified, and detailed descriptions of all species are provided. Conservation assessments are provided for all species. Eleven names are lectotypified here and one epitype is designated. Keywords. Conservation assessments, Didymocarpoideae, identification key, lectotypifications Introduction Aeschynanthus Jack is a large and variable genus with around 160 species from Sri Lanka and India through southern China and Southeast Asia to New Guinea and the Solomon Islands (Weber, 2004; Middleton, 2007). The last complete account of the genus was by Clarke (1883) who included 64 species. More recently, regional revisions have been published for China (Wang et al., 1998), Thailand (Middleton, 2007), Cambodia, Laos and Vietnam (Middleton, 2009), and India (Bhattacharyya & Goel, 2015). Checklists have been published for Singapore (Turner, 1993; Chong et al., 2009), Peninsular Malaysia (Turner, 1997), Myanmar (Kress et al., 2003), Sulawesi (Mendum & Atkins, 2003), and Sumatra (Tjitrosoedirdjo et al., 2009). Several of these checklists are now rather out-of-date due to the discovery of new species and/or due to the synonymisation of names. A general background to research on Aeschynanthus was given in Middleton (2007). For Singapore and Peninsular Malaysia the last comprehensive treatment was by Ridley (1923), in which 14 species of Aeschynanthus for the Malay Peninsula were recognised.