Stenochlaena riauensis Sofiyanti et al.

Gasper, André Luís De, Dittrich, Viníciusantonio De Oliveira, Smith, Alan R. & Salino, Alexandre, 2016, A classification for Blechnaceae (Polypodiales: Polypodiopsida): New genera, resurrected names, and combinations, Phytotaxa 275 (3), pp. 191-227 : 201

f., Fl. Indica 234. 1768. 6. Stenochlaena riauensis Sofiyanti et al. , Bangl. J. Pl. Taxon. 22: 137. 2015. 7. Stenochlaena tenuifolia (Desv.) T.Moore, Gard. Chron. 193. 1856. — Lomaria tenuifolia Desv., Ges. Naturf.

Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 5: 326. 1811.

Telmatoblechnum Perrie, D.J.Ohlsen & Brownsey , Taxon 63: 755. 2014. — Type: Telmatoblechnum serrulatum (Rich.) Perrie, D.J.Ohlsen & Brownsey , Taxon 63: 755. 2014. Figs. 2C , 5F .

Blechnopsis sect. Diafnia C.Presl, Epimel. Bot. 119. 1851.

Plants terrestrial, rarely epipetric; rhizomes long-creeping, non-stoloniferous, stout, clothed with bicolorous (atrocostate), lanceolate, entire scales; fronds monomorphic or slightly dimorphic, determinate; stipes stout, long, smooth and glabrous, with dark bases, stramineous distally, with a few scales similar to those of rhizomes; blades concolorous, pinnate, oblong to lanceolate, truncate proximally, apices conform; rachises glabrous or with amorphous, hyaline scales; buds absent; aerophores absent; pinnae articulate to rachises, linear to linear-oblong, margins serrate; veins free, 1–3-furcate, ending at the pinna margins; sori linear, close to costae, with narrow indusia, margins erose or lacerate; x = 36.

Species number, comments, and distribution:— Telmatoblechnum comprises two species, one in the Neotropics and another in Australasia/Oceania. The genus is one of the few in the family with articulate pinnae. Plants grow in swamps, open wetlands, and wet savannas.

Figures

FIGURE 2. General appearance of the three genera of Blechnaceae subfamily Stenochlaenoideae.A.Salpichlaena volubilis (MO3588318); B. Stenochlaena scandens (P01420182); C. Telmatoblechnum serrulatum (MO2003917). Vouchers are indicated by herbarium barcodes.

FIGURE 5. Habitat of Blechnaceae genera. A. Anchistea virginica; B. Lorinseria areolata; C. Woodwardia unigemmata; D. Salpichalena volubilis; E. Stenochlaena milnei; F. Telmatoblechnum serrulatum; G. Austroblechnum penna-marina; H. Blechnidium melanopus; I. Blechnopsis orientalis. Photos from: A. The PLANTS Database, USDA, NRCS. 2016; B. James Van Kley; C. Ralf Knapp; D. Luis Adriano Funez; E. Julie F. Barcelona; F. Luis Adriano Funez; G. Vinícius A.O. Dittrich; H. Ralf Knap; I. Ralf Knap. Reproduced with permission from the authors.