Saccoloma Kaulf.
Descripción
Rhizomes stout, compact, woody, erect, with dark, sclerotic scales and some hairs; fronds large, clumped, monomorphic; stipes glabrous, axes grooved, grooves confluent from one axis to the next; blades 1–4-pinnate, herbaceous to coriaceous, glabrous; veins free, simple to branched; sori submarginal, individual on veins, indusia forming outward-facing conical cups; paraphyses absent; spores tetrahedral-globose, tan, parallel ridges anastomosing at corners; x=ca. 63? (fide Smith, 1981).A
Forma de vida
TerrestreA
Distribución
México (país) Nativo y no endémicoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Saccoloma is a small pantropical genus of about 12 species, mostly of the southwestern Pacific, with only six species in the neotropics, occurring at low to middle elevations in wet forests. It is distinct in its generally large, coriaceous fronds, rhizome indument of dark, sclerotic scales, submarginal, discrete or subdiscrete sori, and spores with parallel ridges. The relationships of Saccoloma are uncertain, but probably not with the dennstaedtioid ferns. Apparently, it is an isolated genus; see Wolf et al. (1999).A