Pellaea ovata Weath.
Descripción
Rhizomes short- to moderately creeping, slender, ca. 2 mm diam.; rhizome scales 2–3 X 0.5–0.8 mm, bicolorous, central portion lustrous black, margins thin, light brown, erose, tip hairlike; fronds to 60 cm long; stipes ca. 1⁄3 the frond length, stramineous, plane on top, glabrous to sparsely hairy with scattered black specks, rachises flexuous, costae and costules densely short-pubescent with reddish hairs 0.1–0.3 mm long; blades deltate, 2–3-pinnate, the pinnae retroflexed, segments elliptic to ovate, glabrous, articulate, bases cordate, apices obtuse to truncate, 8–12 X 5–10 mm, terminal pinnule of each pinnae with base equilateral; veins obscure, subcoriaceous; margins recurved with narrow modified entire indusia 0.1 mm wide; spores brown; 2n=58 (Tex, CR), n=2n=87, apogamous (SLP).
A
A
Forma de vida
TerrestreA
Ejemplar revisado
Ags (McVaugh &Koelz 123, MICH). BCS (León 3415, UC). Chih (Gentry 1538, UC). Chis (Ghiesbreght 204, US). Coah (Wynd & Mueller 318, US). DF (Lyonnet 861, NY). Dgo (Ortega 5313, US). Gro (Hinton 11305, US). Gto (Duges s.n., in 1880, NY). Hgo (Chase 7217, F, MO). Jal (McVaugh 17408, MICH). Méx (Hinton 7206, MO). Mich (Arsène 3645, US). Mor (Rose et al. 10193, US). Nay (McVaugh 16337, MICH). NL (Mueller & Mueller 1130, GH). Oax (Pringle 5951, GH). Pue (Copeland herb. 108, UC). Qro (Tryon & Tryon 5154, MO). Sin (Breedlove 18048, NY). SLP (Rzedowski 24706, NY). Son (Rose et al. 13113, US). Tam (Bartlett 10313, US). Tlax (Acosta P. 2657, ENCB). Ver (Bourgeau 3067, NY). Zac (McVaugh 17783, MICH).A
Elevación
900 – 2550 mA
Tipo de vegetación
Bosque de encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pellaea ovata is distinct by its strongly flexuous blade axes and densely hairy costae. There are two forms of this species, an apogamous 32-spored form and a sexual 64-spored form.A