Pellaea villosa (Windham) Windham & Yatsk.
Descripción
Blades 1-pinnate distally, pinnae ternate in proximal 1⁄4–3⁄4; stipes atropurpureous to black, distally terete or slightly grooved adaxially, rarely grooved in distal portion; rachises villous, especially in axils of pinnae; pinnae with hairs scattered along main veins abaxially; largest ultimate segments (excluding terminal pinnae) usually more than 18 mm; spores tan, usually 46–53 µm diam.; 2n=116 (Dgo, Pue, SLP).A
Forma de vida
TerrestreA
Ejemplar revisado
Chih (Pringle 446, NY). Coah (Wynd & Mueller 574, NY). Dgo (Maysilles 8288, NY). Gto (Galvan 2332D, ENCB). Hgo (Copeland herb. 109, NY). Méx (Rzedowski 22894, NY). Mich (Rzedowski 49942, IEB). NL (Rodríguez L. 174, UNL). Pue (Purpus 4032, UC). SLP (Limon 51, MEXU). Son (White 4221, US).A
Elevación
1900 – 2250 mA
Ecología y Hábitat
Rocky slopes and ledges on igneous substrates.A
Tipo de vegetación
Bosque de encino, Matorral de otro tipoB
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
The generally less divided blades and the laxly hairy rachises suggest that Pellaea villosa may have originated as a cross between P. ternifolia and P. ribae.A