Sadleria Kaulf., Enum. Filic.

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 : 220

Sadleria Kaulf., Enum. Filic. 161. 1824. — Type: Sadleria cyatheoides Kaulf., Enum. Filic. 161. 1824. Figs. 4H , 7E .

Plants terrestrial, epipetric in Sadleria squarrosa ; rhizomes erect, subarborescent, non-stoloniferous, stout, bearing brown, linear-acuminate or lanceolate scales, these entire or minutely toothed or ciliolate at the margins; fronds monomorphic; stipes stout, long, stramineous or darkened, with filiform brown scales proximally, glabrous or glabrescent distally; blades concolorous, lanceolate to elliptic, pinnate-pinnatifid or bipinnate, apices pinnatifid; rachises scaly, sometimes with glandular hairs, glabrous or glabrescent; buds absent; aerophores absent; pinnae sessile or short-stipitate, with segments falcate to obtuse, subentire to crenate; veins furcate near the costa, uniting to form a pericostal arch, ending in hydathodes; sori linear, continuous over vein arches, indusia continuous or not, sometimes glandular; x = 33.

Species number, comments, and distribution:— About six species, endemic to Hawaii. The trunk-like rhizomes, pinnate-pinnatifid or bipinnate blades, and brown, linear-acuminate or lanceolate rhizome scales are typically present in species of this genus. It is closely related to Cleistoblechnum and Blechnopsis (Gasper et al. in press).

Figures

FIGURE 4. General appearance of the genera of Blechnaceae subfamily Blechnoideae (G-S). A. Icarus filiformis (WELT P009478); B. Lomaria nuda (P01557820); C. Lomaridium fragile (MEXU 149093); D. Lomariocycas aurata (QCA7004842); E. Neoblechnum brasiliense (FURB06585); F. Oceaniopteris cartilaginea (P01630912). G. Parablechnum cordatum (FURB06639); H. Sadleria pallida (MEXU 956078); I. Struthiopteris spicant (P01658104). Vouchers are indicated by herbarium barcodes.

FIGURE 7. Habitat of Blechnaceae genera. A. Lomariocycas schomburkii. B. Neoblechnum brasiliense; C. Oceaniopteris gibba; D. Parablechnum glaziovii; E. Sadleria cyatheoides; F. Struthiopteris spicant; F. Photos from:A–B. Luis Adriano Funez; C. Vojtěch Zavadil; D. Vinícius A.O. Dittrich; E. Kit Herring; F. Ralf Knapp. Reproduced with permission from the authors.