New Species, Varieties, and Combinations in Cuphea (Lythraceae) from Brazil

Taciana B. Cavalcanti; Shirley A. Graham

doi:10.3417/2006163

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Taciana B. Cavalcanti,¹ Shirley A. Graham²

¹Embrapa Genetic Resources and Biotechnology, Embrapa/Cenargen, Parque Estação Ecológica, Final W5 Norte, CP 02372, CEP 70.770-900, Brasília, D.F., Brazil taciana@cenargen.embrapa.br
²Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A shirley.graham@mobot.org

Abstract

Six new species and two varieties of Cuphea P. Browne (Lythraceae) are described from Brazilian collections. Cuphea lucens T. B. Cavalcanti & S. A. Graham from Minas Gerais is described in sect. Melvilla Koehne subsect. Pachycalyx Koehne where it is similar to C. cylindracea S. A. Graham but lacks the prominently descending floral tube spur of that species. Cuphea alatosperma T. B. Cavalcanti & S. A. Graham from the Amazon, with inflated-winged seeds, and C. anamariae T. B. Cavalcanti & S. A. Graham, a novelty from white sands in Minas Gerais, belong to sect. Euandra Koehne subsections Platypterus Koehne and Hilariella Koehne, respectively. Cuphea exilis T. B. Cavalcanti & S. A. Graham, C. filiformis T. B. Cavalcanti & S. A. Graham, and C. rupestris T. B. Cavalcanti & S. A. Graham, new species with linear-lanceolate leaves and a woody xylopodium (not confirmed in C. exilis), are members of sect. Euandra subsect. Oidemation Koehne, as are the newly recognized variety C. spermacoce A. St.-Hilaire var. arguta T. B. Cavalcanti & S. A. Graham and the new combination C. spermacoce var. erectifolia (Koehne) T. B. Cavalcanti & S. A. Graham. Lectotypes are selected for C. erectifolia Koehne and two forms of the species. A key to the varieties of C. spermacoce is provided.

Citation Download Citation

Taciana B. Cavalcanti and Shirley A. Graham "New Species, Varieties, and Combinations in Cuphea (Lythraceae) from Brazil," Novon: A Journal for Botanical Nomenclature 18(3), 298-314, (2 September 2008). https://doi.org/10.3417/2006163

Published: 2 September 2008

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