Parablechnum C.Presl
Descripción
Rhizomes erect or suberect, sometimes subarborescent to decumbent, short-creeping, non-stoloniferous, stout, clothed with reddish to brown, bicolorous or concolorous, ovate or ovate-lanceolate, entire or denticulate scales one cell thick, sometimes covered by mucilage; fronds usually dimorphic, rarely monomorphic or subdimorphic; stipes stout, long, stramineous, light brown, or dark purplish, proximally with scales similar to those of rhizomes, scaly, rarely with twisted hairs; blades concolorous, oblong to lanceolate, 1-pinnate, bases truncate, apices conform; rachises glabrous or glabrescent to often densely scaly; buds absent or present in a few species; aerophores sometimes borne at the bases of pinnae abaxially; pinnae sessile or stalked, usually not articulate (articulate in P. articulatum), often falcate, oblong-linear, lanceolate, plane or revolute at margins, entire or finely denticulate; veins free, simple to 1furcate, clavate at tips adaxially, near pinna margins; sori linear, indusia subentire to lacerate or erose; x = 28, 31, 33.A
Forma de vida
TerrestreA
Tipo de vegetación
Bosque de neblina/mesófilo, Bosque de pino, Bosque de pino-encinoB
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
The species of Parablechnum are characterized by the truncate laminae, 1-pinnate blades, and conform or subconform apices. The genus is most closely related to Lomariocyas and a clade formed by Neoblechnum, Oceaniopteris, and Doodia (Gasper et al. in press).A