Cyathea schiedeana Domin
Descripción
Trunks to 7 m tall, 6 cm diam.; stipes stramineous to brown, armed with slender to stout spines, scales brown to dark brown, concolorous or with narrow, pale, entire to slightly erose margins, scurfy with tiny squamules; blades 2–3 m long, bipinnatepinnatifid; rachises stramineous to brown, with occasional low spines, glabrous to scurfy; laminae firm; pinnae sessile or with stalks to 1 cm; pinnules sessile or stalked to 1 mm, 1.5–2 cm wide, crenulate to broadly dentate, segments 3–4 mm wide, rounded at tips, apices obtuse; sterile veins simple or 1-forked; costae hairy adaxially, segment midveins with 1–2 hairs near tip; costae abaxially with short hairs (variable amount) and dark brown bullate scales; sori medial on simple veins or with forks, indusia absent, paraphyses shorter than sporangia.
A
A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 21892, DS; García F. 718, XAL). Gro (Lorea 1540, FCME; Téllez 6160, MEXU). Oax (Conzatti 3816, MEXU; Mickel 5711, MEXU, NY). Pue (Contreras J. 6121, 6989, MEXU). Ver (Calzada 8370, XAL; Orcutt 3213, NY).
Unverified, Doubtful, or Mistaken Reports. Tab (Linden s.n., K, cited by Cowen, 1983, but not verified).
A
Unverified, Doubtful, or Mistaken Reports. Tab (Linden s.n., K, cited by Cowen, 1983, but not verified).
A
Elevación
100 – 1400 mA
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
Sujeta a protección especial (Pr)C
Discusión taxonómica
Among the exindusiate species of Mexican tree ferns, C. schiedeana differs by its concolorous dark brown stipe scales, dark brown bullate costal scales, and rounded segment apices.A