Taxonomy and typification of Nymphaea ampla (Salisb.) DC. sensu lato (Nymphaeaceae)

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Abstract:

Recent work on Nymphaea ampla (Salisb.) DC. s.l. in tropical America suggests that two species should be distinguished within this broadly circumscribed taxon, which formerly has mostly been treated to include all of the native tropical diurnally flowering water-lilies of Central and South America and the Antilles. The two species are distinguished by their leaf margins, venation pattern, and coloration; by the number of flower parts; and by seed morphology. To determine proper nomenclature for the two recognized species, the typification of all relevant names is investigated. The typification of several names is reported, including the two names proposed for acceptance: N. ampla for a species of Mexico, Mesoamerica, and the Greater Antilles and N. pulchella DC. for a species from southern and central Mexico, southern Mesoamerica, South America, and the Greater and Lesser Antilles.

Keywords: NYMPHAEA LEIBOLDIANA; NYMPHAEA NERVOSA; NYMPHAEA PULCHELLA; NYMPHAEA SPECIOSA; NYMPHAEA SUBG. BRACHYCERAS; NYMPHAEA TROPAEOLIFOLIA; WATER-LILIES

Document Type: Research Article

Affiliations: 1: United States Department of Agriculture/Agricultural Research Service, National Germplasm Resources Laboratory, Rm. 102, Bldg. 003, Beltsville, Maryland 20705-2350, U.S.A.;, Email: john.wiersema@ars.usda.gov 2: Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, 04510, México, D.F. México 3: Laboratorio de Hidrobotánica, Departamento de Biología Vegetal, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México

Publication date: August 1, 2008

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