Pteris muricata Hook.
Descripción
Rhizomes stout, suberect; rhizome scales 2–4 X 0.5 mm, bicolorous, centers black, sclerotic, margins narrow, brown; fronds 50–200 cm long; stipes ca. 1⁄2 the frond length, stramineous, with scattered scales, hairs 0.5 mm, and conical prickles 0.5–1 mm; blades 3–4-pinnate, pedate-pinnate, basal pinnae pinnatepinnatifid beyond the basal pinnules, firm to coriaceous; pinnae petiolulate to 5 mm; rachis awns short, broad, toothed, 1–1.5 mm long; ultimate segments entire, mucronate, serrate, segments broadly adnate, with scattered 0.5–1 mm hairs on abaxial costae, sinuses asymmetric; pinna awns 0.8–1 mm long; veins free, not running to sinuses; indusia 0.3–0.5 mm wide, entire; sporangia mixed with paraphyses 0.3 mm long; spores brown.A
Ejemplar revisado
Chis (Breedlove 31979, DS, MEXU, 32359, DS, ENCB; Martínez S. et al. 13221, MEXU; Matuda 2065, MEXU, 5433, US; Ventura & López 3315, ENCB, MEXU). Oax (Campos V1577, MEXU; Mickel 4546, ENCB, MEXU, NY, UC, US). Ver (Copeland herb. 82, MEXU, MICH, NY, UC, US, XAL; Ventura 15768, ENCB, MEXU).A
Elevación
2020 – 2700 mA
Ecología y Hábitat
Wet montane forests on Atlantic slope.A
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This rare species is the only Mexican Pteris to bear prickles on the blade axes.A