Nymphoides humboldtiana (Menyanthaceae) in Florida (U.S.A.) verified by DNA data
DOI:
https://doi.org/10.17348/jbrit.v12.i1.934Palabras clave:
floating hearts, invasive species, nuclear and chloroplast DNA, taxonomic classification, range extension, rare and endangered speciesResumen
Las poblaciones de algunas Nymphoides en Florida, U.S.A., previamente identificadas como la no nativa N. indica (L.) Kuntze, son actualmente N. humboldtiana (Kunth) Kuntze, tal como se ha verificado usando datos del ADN nuclear y plastidial. Estas nuevas citas de N. humboldtiana en Florida son las únicas localidades conocidas en U.S.A. Fuera del condado de Uvalde, Texas. Nymphoides humboldtiana es nativa de Texas, México, el Caribe, y América Central y del Sur. Las poblaciones identificadas de Florida encontradas cerca de la ciudad de Tampa en el condado de Manatee (lago Ward y río Braden) y Fort Walton Beach en Okaloosa County (lago Bass) se asume que son nativas. Nymphoides humboldtiana y N. indica comparten muchas similitudes superficiales, la más notable pétalos blancos con pelos ciliados. Nuestros hallazgos sugieren que ciertas poblaciones determinadas morfológicamente de N. indica en U.S.A. pueden estar identificadas incorrectamente. Tales poblaciones deberían ser re-examinadas usando métodos de ADN para evitar cualesquiera acciones de manejo contra N. humboldtiana.
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