Abstract:ResumenTres especies nuevas de Jamesonia Hook. & Grev. para el Neotrópico son descritas aquí: J. erecta A. Rojas, J. panamensis A. Rojas y J. retroflexa A. Rojas. La primera especie se caracteriza por rizoma robusto y ascendente; frondas cortas y ascendentes; lámina estrecha; rachis recto a levemente flexuoso, lámina adaxialmente glabra y abaxialmente con pelos glandulares. La segunda especie tiene distintivamente estípite atropurpúreo a negro, lustroso y glabro; lámina 1-pinnada-pinnatifida o hasta 2-pinadas … Show more
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