Adiantum pseudotinctum Hieron.

Carmes, Amanda Angélica, Dechoum, Michele de Sá, Lima, Duane Fernandes, de Gasper, Andre Luís, B. Matos, Fernando & Fiaschi, Pedro, 2020, Ferns and lycophytes from Lagoa do Peri Municipal Park, Santa Catarina, Brazil, Check List 16 (5), pp. 1305-1322 : 1317

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).