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1 July 2013 Nomenclatural Changes Resulting from the Transfer of Nesaea and Hionanthera to Ammannia (Lythraceae)
Shirley A. Graham, Kanchi Gandhi
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Generic delimitations and understanding of relationships among the herbaceous Afro-Asian genera Ammannia L., Hionanthera A. Fern. & Diniz, and Nesaea Comm. ex Kunth were long elusive due to the extensive similarity in their habit and floral morphology. Recently, studies based on morphological and molecularbased evidence found the three genera forming a strongly supported monophyletic clade. The need for taxonomic unification as a result of this finding is satisfied here by formal nomenclatural recognition of a single genus under the earliest available name, Ammannia, and new synonyms Hionanthera and Nesaea. To accommodate the required nomenclatural changes, 77 new combinations are proposed. Seven new names are provided for replaced synonyms: Ammannia brevistyla S.A.Graham & Gandhi, A. fernandesiana S.A. Graham & Gandhi, A. grayi S.A. Graham & Gandhi, A. involucrata S.A. Graham & Gandhi, A. mauritiana S.A.Graham & Gandhi, A. parvula S.A. Graham & Gandhi, and A. pauciramosa S.A. Graham & Gandhi. Lectotypes are designated for 18 names.

© President and Fellows of Harvard College, 2013.
Shirley A. Graham and Kanchi Gandhi "Nomenclatural Changes Resulting from the Transfer of Nesaea and Hionanthera to Ammannia (Lythraceae)," Harvard Papers in Botany 18(1), 71-90, (1 July 2013).
Published: 1 July 2013
African flora
nomenclatural changes
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