The genus Dicaryum Willd. ex Roem. & Schult. was described in 1819 and does not have a type species. Two species were described, and one, D. subdentatum Willd. ex Roem. & Schult., is better selected as the type because the other species, D. serrulatum Willd. ex Roem. & Schult., is not a Verbenaceae but rather a Primulaceae-Myrsinoideae and belongs to Geissanthus Hook. f. Given the circumstances, we choose D. subdentatum as the type species of Dicaryum, which is a synonym of Citharexylum ilicifolium Kunth.
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12 September 2018
Typification of the Genus Dicaryum (Verbenaceae)
John J. Pipoly III,
Jon M. Ricketson
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Citharexylum
Dicaryum
Geissanthus
Lectotypification
Primulaceae
Verbenaceae