Abstract
Clerodendrum L. s.l. subg. Cyclonema (Hochstetter) Guerke plus Clerodendrum sect. Konocalyx Verdcourt (subg. Clerodendrum pro parte) are recognized as a distinct genus, for which the earliest name is Rotheca Rafinesque. The new combinations Rotheca commiphoroides (Verdcourt) Steane & Mabberley, Rotheca makanjana (H. Winkler) Steane & Mabberley, Rotheca myricoides (Hochstetter) Steane & Mabberley, Rotheca incisa (Klotzsch) Steane & Mabberley, Rotheca sansibarensis (Guerke) Steane & Mabberley, Rotheca sansibarensis subsp. occidentalis (Verdcourt) Steane & Mabberley, Rotheca sansibarensis subsp. caesia (Guerke) Steane & Mabberley, and Rotheca serrata (L.) Steane & Mabberley are made.