William Griffith in 1854 used the same name for a genus of very different plants, thus creating an illegitimate homonym. The World Checklist categorizes his name as a synonym of the genus Trigonostemon in the Euphorbiaceae, but makes no mention of the two species names he coined. The Plant List does list the species as unresolved, i.e. of unknown application. The two species names are
Athroisma dentatum Griff. - Bay of Bengal
Athroisma serratum Griff. - Tenasserim region of Myanmar
References
↑Candolle, Augustin Pyramus de. 1833. Archives de Botanique 2: 516
↑Schatz, G. E., S. Andriambololonera, Andrianarivelo, M. W. Callmander, Faranirina, P. P. Lowry, P. B. Phillipson, Rabarimanarivo, J. I. Raharilala, Rajaonary, Rakotonirina, R. H. Ramananjanahary, B. Ramandimbisoa, A. Randrianasolo, N. Ravololomanana, Z.S. Rogers, C.M. Taylor & G. A. Wahlert. 2011. Catalogue of the Vascular Plants of Madagascar. Monographs in systematic botany from the Missouri Botanical Garden
↑Eriksson, T. 1995. The genus Athroisma (Asteraceae, Heliantheae). Botanical Journal of the Linnean Society 119: 101–184.