Ferns and lycophytes from Lagoa do Peri Municipal Park, Santa Catarina, Brazil Author Carmes, Amanda Angélica Author Dechoum, Michele de Sá Author Lima, Duane Fernandes Author de Gasper, Andre Luís Author B. Matos, Fernando Author Fiaschi, Pedro text Check List 2020 2020-10-02 16 5 1305 1322 http://dx.doi.org/10.15560/16.5.1305 journal article 10.15560/16.5.1305 1809-127X Adiantum pseudotinctum Hieron. Material examined. BRAZIL • Santa Catarina , Floria- nópolis, PMLP; alt. 226 m ; 10 Mar. 2010 ; A. Stival-Santos et al. 1943 col.; FURB 11992 . Habitat. Dense Ombrophilous Forest. Habit. Terrestrial. Distribution pattern. Endemic to South America. Identification. Rhizomes long-creeping, covered with dark-brown scales; leaves monomorphic; petioles darkbrown, ca 1/3–1/2 of the leaf length; rachises dark brown, shiny, glabrous, sub-dichotomously divided; blades 4-pinnate; pinnules flabellate, margins of the segments crenate to lobate, base obtuse; sori at the margin of the segments, 1–4 per pinnule; and false indusia reniform, formed by the revolute margins of the blades. The most similar species in the park is Adiantum raddianum C.Presl , which differs by short-creeping rhizomes (vs long-creeping); 3-pinnate blades (vs 4-pinnate), and pinnules with cuneate bases (vs truncate).