Selaginella acutifolia (Stolze) Valdespino
Descripción
Stems fasciculate from a rhizomatous base, rosette-forming or occasionally erect, 3–30 cm long, 0.5–1 mm diam., not articulate, green to reddish, 2–3 times branched; rhizophores restricted to stem bases, filiform, 0.2–0.5 mm diam.; leaves of two kinds (anisophyllous) throughout, green or reddish above, silvery to lustrous green, golden, or reddish below; lateral leaves imbricate, ascending, broadly ovate to ovate-deltate, 1–2 X 0.6–1.2 mm, bases rounded to subcordate, ciliate, margins hyaline, short- to long-ciliate proximally, denticulate distally, apices acute; median leaves imbricate to slightly distant, broadly ovate to ovate-deltate, 1–1.5 X 0.8–1.2 mm, glabrous, bases subcordate, margins hyaline, short-ciliate proximally, denticulate distally, apices acute; axillary leaves ovate to lanceolate, bases cordate, long-ciliate, margins hyaline, ciliate throughout or denticulate distally, apices acute; strobili terminal on branches, quadrangular, 3–10 mm long; sporophylls monomorphic; megasporangia mostly basal in two ventral rows; microsporangia in two dorsal rows and distally also in ventral rows; megaspores lemon-yellow, reticulate, with or without a low equatorial flange, 240–260 µm diam.; microspores orange.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
Jal (Lott & Wendt 1593, UC). Mich (Guerrero 991, 1216, XAL). Oax (Mickel 6905, NY).A
Elevación
0 – 150 mA
Ecología y Hábitat
On shaded trail banks and road banks.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Selaginella acutifolia is characterized throughout its range by acute leaf apices and red-pigmented leaves and stems; it is here considered a species distinct from S. pallescens.A