Resumo

ROJAS-ALVARADO, Alexander Fco.  e  TEJERO-DIEZ, J. Daniel. Una especie nueva de Dennstaedtia (Filicales: Dennstaedtiaceae) para México. Rev. biol. trop [online]. 2002, vol.50, n.3-4, pp.1007-1012. ISSN 0034-7744.

Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) is herein describes and illustrated as a new species endemic to Mexico. Its belongs to the group of winged adaxial secondary costae species but it differs by the combination of caracters as smaller fronds, deltate pinnules and lobed segment apex.

Palavras-chave : Dennstaedtia; Dennstaedtiaceae; endemic; fern; Mexico; new species.