Polypodium hispidulum Bartlett
Descripción
Rhizomes creeping, 3–5 mm diam.; rhizome scales tan to brown, tightly appressed, ovate to lanceolate, wrinkled, lustrous, 3–5 X 0.8–1 mm; fronds 10–23 cm long, distant; stipes ca. 1⁄4 the frond length, stramineous, glabrous; blades pinnatisect, oblong, 5–8 cm wide; pinnae 5–13 pairs, linear-deltate, equally dilated at base, acuminate, with abundant white hairs 0.3–0.5 mm long on rachises, costae, margins, and laminar surfaces; margins shallowly serrulate; veins netted, with one row of areoles between costae and pinna margins; sori round, medial, in one row between costae and margins; sporangia with setae 0.1–0.3 mm long; 2n=74 (Nay).A
Forma de vida
EpífitaA
Ejemplar revisado
Chis (Breedlove 22436, NY). Oax (Hallberg 1693, NY; Hernández G. 1858, NY; Vera Santos 2625, US).
Unverified, Doubtful, or Mistaken Reports. Ver (Riba 1148a, UAMIZ; F. Ramírez 514, XAL, both cited by Palacios-Rios, 1998, but not verified).
A
Unverified, Doubtful, or Mistaken Reports. Ver (Riba 1148a, UAMIZ; F. Ramírez 514, XAL, both cited by Palacios-Rios, 1998, but not verified).
A
Elevación
300 – 900 mA
Tipo de vegetación
Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Estatus del taxón
(A) Como definida actualmente, probablemente una entidad natural (monofilética)A
Discusión taxonómica
Polypodium hispidulum has the tightly appressed rhizome scales of P. plesiosorum and P. rhodopleuron, but differs from those in the densely hairy blades. In Mexico, P. hispidulum appears to be confined to Oaxaca and Chiapas, whereas P. plesiosorum is more widespread.A