Callmander, M. W., P. B. Phillipson & L. Gautier (ed.) (2012). Notes on the flora of Madagascar, 26. Candollea 67: 369–372. In English, English and French abstracts.

Ongoing research on Madagascar's flora is revealing numerous taxonomic novelties and nomenclatural inconsistencies, and providing new data on species distribution. This is the fifth in a series of notes that aims to provide the botanical community working on the flora of Madagascar an opportunity to publish short communications on these topics, and in this issue comprises a single note.

— Note 26. An endemic species of Rotheca Raf. (Lamiaceae) from Madagascar, by Martin W. Callmander & Peter B. Phillipson. A new combination is proposed for the only endemic species in the genus Rotheca Raf. (Lamiaceae): Rotheca nudiflora (Moldenke) Callm. & Phillipson. A generic key to Clerodendrum s.str. and its segregate genera: Rotheca and Volkameria L. is also presented.