title: Two new genera, Hoffmannanthus and Jeffreycia, mostly from East Africa (Erlangeinae, Vernonieae, Asteraceae).
abstract: Two genera of Vernonieae subtribe Erlangeinae with Type A pollen, 5-ribbed achenes, and blunt-tipped sweeping hairs on the styles are described as new, Hoffmannanthus with one species and with Vernonia brachycalyx O. Hoffm. as type, and Jeffreycia with five known species, with Vernonia zanzibarensis Less. as type. Vernonia abbotiana O. Hoffm. is neotypified and is an older name for V. brachycalyx.
authors.affiliation: Department of Botany, MRC 166, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC., 20013-7012, USA.
authors.forename: Harold
authors.initials: H
authors.lastname: Robinson
authors.affiliation: Department of Botany, University of Hawaii, Manoa, 3190 Maile aWay, #101, Honolulu, Hawaii, 96822-2279, USA.
authors.forename: Sterling C
authors.initials: SC
authors.lastname: Keeley
authors.affiliation: Department of Botany and Microbiology, and Oklahoma Biological Survey, University of Oklahoma, Norman, Oklahoma, 73018-6131, USA, deceased 2 March 2014.
authors.forename: John J
authors.initials: JJ
authors.lastname: Skvarla
authors.affiliation: Department of Botany, MRC 166, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC., 20013-7012, USA.
authors.forename: Raymund
authors.initials: R
authors.lastname: Chan
keywords: Africa; Compositae; Erlangeinae; Hoffmannanthus; Jeffreycia; Vernonieae; new genera