Telmatoblechnum Perrie, D.J.Ohlsen & Brownsey

Dittrich, Vinícius Antonio De Oliveira, Salino, Alexandre, Monteiro, Reinaldo & Gasper, André Luís De, 2017, The family Blechnaceae (Polypodiopsida) in Brazil: key to the genera and taxonomic treatment of Austroblechnum, Cranfillia, Lomaridium, Neoblechnum and Telmatoblechnum for southern and southeastern Brazil, Phytotaxa 303 (1), pp. 1-33 : 25

5. Telmatoblechnum Perrie, D.J.Ohlsen & Brownsey in Perrie et al. (2014: 755).

Type: Telmatoblechnum serrulatum (Rich.) Perrie, D.J.Ohlsen & Brownsey in Perrie et al. (2014: 755)

Plants terrestrial, rarely epipetric; rhizomes long-creeping, stoloniferous, the scales with a dark central stripe, lanceolate, with entire margins; fronds monomorphic or slightly dimorphic, erect; stipes dark proximally, stramineous distally, proximally with scales similar to those of rhizomes, shorter than blades; blades pinnate, oblong to lanceolate, glabrous, each with a conform terminal pinna, truncate proximally, chartaceous to coriaceous; rachises glabrous or with amorphous, hyaline scales; pinnae articulate to rachises, sessile, linear to linear-oblong, margins toothed, with brown scales on abaxial costae, eventually deciduous; veins free, 1 × –3 × forked, vein tips not enlarged; sori usually restricted to the apical pinnae, indusia with erose margins; spores with globules or perispore spherules. x = 36.

Only one species in the study area, T. serrulatum .