Pleopeltis collinsii (Maxon) A.R.Sm. & Tejero
Descripción
Rhizomes creeping, 5–7 mm diam.; rhizome scales tightly appressed, round to slightly lance-attenuate, 0.5–0.8 mm long, bicolorous, centers dark reddish brown, occluded, margins light reddish, fimbriate; fronds 50–85 cm long, distant, 1–3 cm apart; stipes 1⁄3–2⁄5 the frond length, castaneous, densely clothed with appressed, round (0.3 mm) to long-acicular, fimbriate scales 1 mm long; blades ovate-lanceolate, pinnatisect, 15–22 cm wide; pinnae 10–15(–27) pairs with terminal pinna conform, lineardeltate, 6–9 mm wide, bases broadly adnate, surcurrent, with nectary on surcurrent edge, apices acuminate; costae castaneous, prominent; adaxial surfaces with scattered acicular fimbriate scales; abaxial surfaces more densely scaly, some scales round, 0.3 mm, others 1 mm long, bicolorous, centers reddish brown, tips whitish; veins not evident; sori round to slightly oblong, pushing through the overlying scales, forming a cup, depressed and making adaxial surfaces embossed; sporangia glabrous; 2n=74 (Chis).A
Forma de vida
o epipétrica. EpífitaA
Ejemplar revisado
(Related to the synonym Polypodium collinsii) Chis (Breedlove 24924, 23117, DS, NY; Rovirosa 845, NY). Oax ( Galeotti 6512, BR; Mickel 1600, 4821, NY). Ver (Calzada 00261, 00270, CAS).A
Distribución
México (país) EndémicoA
Elevación
825 – 1900 mA
Tipo de vegetación
Bosque de pino-encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym) Polypodium collinsii is distinct from P. sanctae-rosae, the most abundant member of the complex, by having longer pinnae and smaller scales on the rhizomes and abaxial laminar surfaces.A