Cyathea myosuroides (Liebm.) Domin
Descripción
Trunks to 2–5 m tall, ca. 10 cm diam.; stipes dark brown, prickly, but lacking coarse spines, scales conform, castaneous, concolorous, margins with short teeth, hairs of major axes not abundant, mostly adpressed; blades 1.5–4 m long, bipinnatepinnatifid, firm to subcoriaceous; pinnae ca. 1.7 cm wide, stalks 10–14 mm long; pinnules stalked ca. 1–2 mm, lobed ca. Halfway to segment midveins; veins 1-forked; costules hairy on both sides, segment hairs sparse adaxially, a few more abaxially, occasional irregularly toothed dark scales on costules abaxially; sori medial at vein forks or more commonly on acroscopic branches, receptacles pilose, indusia absent.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 21836, NY; Castillo C. et al. 3936, XAL). Oax (Mexia 9244, NY; Mickel 7378, MEXU, NY; Torres C. 11152, MEXU). Pue (Contreras J. 6714, MEXU). Tab (Cowan 2096, NY; Fernández N. 1053, XAL). Ver (Dorantes et al. D-2707, MEXU; Smith 2094, NY).A
Elevación
0 – 1200 mA
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cyathea myosuroides is distinguished by the exindusiate sori and by castaneous stipe scales with many fine, concolorous teeth. Abundant epiphyllous lichens (Aulaxina quadrangula (Stirton) R. Sant. and three sterile Asterothyriaceae; Richard Harris, pers. comm.) give a distinct pale gray color to the blades.
This species and C. microdonta are the only species of tree ferns in Mexico that occur also in the West Indies.
A
This species and C. microdonta are the only species of tree ferns in Mexico that occur also in the West Indies.
A