Blechnum polypodioides Raddi

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 : 1310

Blechnum polypodioides Raddi

Material examined. BRAZIL • Santa Catarina, Floria- nópolis, PMLP; alt. 226 m; 10 Mar. 2010; A. Stival-Santos 1933 col.; FURB00051, HUCS000620 . • idib, trilha da Gurita; alt. 21 m; 1 Aug. 2016; A.A. Carmes et al. 45 col.; FLOR 0062857.

Habitat. Dense Ombrophilous Forest.

Habit. Terrestrial.

Distribution pattern. Neotropical.

Identification. Rhizomes erect, covered with lanceolate, dark brown scales; leaves monomorphic; petioles stramineous, glabrous, except at the base; rachises covered with light brown to orange hairs; blades pinnatisect, lanceolate; pinnae adnate, gradually reduced to auricles towards the base of the blade; veins free, simple or forked, distally thickened; sori linear; and indusia entire to erose. The most similar species in the park is Blechnum occidentale , which differs by ovate blades (vs lan- ceolate), the first pair of pinnae lanceolate (vs triangular) and slightly smaller or of the same size as the above pinnae (vs reduced to auricles), and the first two pairs of pin- nae totally free (vs adnate to the rachis).