Microgramma piloselloides (L.) Copel.
Descripción
Differs from M. reptans by: rhizome scales tightly appressed and more broadly lanceolate and without long-attenuate tips; sterile blades more obviously scaly; fronds subdimorphic (vs. strongly dimorphic in M. reptans); fertile blades elliptic, mostly 5–10 mm wide and with sori not overlapping the blade margins; 2n=148 (Jam, PR).A
Forma de vida
EpífitaA
Ejemplar revisado
Specimens Examined. Chis (Breedlove 25140, DS, MEXU).
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Magaña, 1992, based on a misidentification of M. reptans).
A
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Magaña, 1992, based on a misidentification of M. reptans).
A
Elevación
1400 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Tryon and Tryon (1982: 717) commented that M. reptans and several other scaly-bladed species were “poorly distinguished” from M. piloselloides. More recently, R. Tryon and Stolze (1993) separated these two and distinguished them by the more tightly appressed rhizome scales of M. piloselloides (vs. loosely appressed and with tips widely spreading in M. reptans) and the whitish (vs. orangish to castaneous in M. reptans) scales on the adaxial laminar surfaces. However, they also included M. acatallela Alston in synonymy under M. piloselloides, and we believe the former is adequately distinct from both M. piloselloides and M. reptans. Moreover, they accorded a much broader range to M. piloselloides than we give it.A