Woodsia canescens (Kunze) Mett.
Descripción
Similar to Woodsia mollis in frond form and dissection, but distinct in having differentiated pinna margins resembling false indusia, the sori open and lacking sac-like indusia.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
DF (Lyonnet 235, NY; Schaffner 79, in 1875, NY, P). Hgo (Medina C. 944d, NY; Ventura A. 355, NY, 1613, NY). Méx (López H. 9, NY; Lott & Wendt P-95, NY; Rzedowski 29259, ARIZ). Pue (Purpus 4021, NY; Rzedowski 24905, MICH). Oax (Mickel 6808, NY). SLP (Schaffner 67, P).A
Distribución
México (país) EndémicoA
Elevación
2100 – 2900 mA
Ecología y Hábitat
Dry grassy oak slopes with Agave and Opuntia.A
Tipo de vegetación
Bosque de encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Woodsia canescens is part of the W. mollis complex but seems sufficiently distinct to be recognized at the species rank. See W. mollis for further discussion.
Although we have not seen type material of W. canescens (both isosyntypes at B on loan), the protologue states “margine reflexo crenato-sinuatis” and “indusiis marginalibus, hyalinis,” suggesting that this name applies to this species with strongly differentiated, recurved segment margins. The drawing in Kunze’s Farrnkräuter (1: t. 35, 1840), along with a lengthy description, confirms this conclusion. In making the combination in Woodsia, Mettenius mistakenly applied the name to Colombian material.
A
Although we have not seen type material of W. canescens (both isosyntypes at B on loan), the protologue states “margine reflexo crenato-sinuatis” and “indusiis marginalibus, hyalinis,” suggesting that this name applies to this species with strongly differentiated, recurved segment margins. The drawing in Kunze’s Farrnkräuter (1: t. 35, 1840), along with a lengthy description, confirms this conclusion. In making the combination in Woodsia, Mettenius mistakenly applied the name to Colombian material.
A