Selaginella parishii Underw.
Descripción
Stems prostrate, forming rather loose mats, dorsiventral, 3–14 cm long, 0.3–0.5 mm diam., not articulate, not flagelliform, not stoloniferous, 2–3 times branched, branches horizontal or curving upward and curling (in dry conditions); rhizophores throughout stem length, 0.2–0.3 mm diam.; leaves of one kind (isophyllous) throughout stem length; upperside leaves spreading, green to grayish green or light brown (in old leaves), narrowly lanceolate to linear-lanceolate, slightly falcate on lateral rows, 1.2–1.8 X 0.4–0.6 mm (widest at base), bases abruptly adnate (distinct from stem), truncate, pubescent, hyaline, margins ciliate, cilia hyaline, apices broadly acute to obtuse; underside leaves appressed, imbricate, buff to light brown or golden-brown, lanceolate, 2–3 X 0.5–1 mm (widest at middle), bases truncate to decurrent, glabrescent, margins ciliate, cilia hyaline, apices acute to obtuse, 0.1–0.4 mm; strobili quadrangular, 5–10 mm; sporophylls monomorphic; megasporangia in two ventral rows; microsporangia in two dorsal rows; megaspores lemon-yellow, reticulate with low ridges, 250–300 µm diam.; microspores light orange, granulose, shed mostly in tetrads.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
Coah (Arsène 3453, MEXU; Johnston et al. 11006, LL, MEXU; Pennell 17272, MEXU, MICH, PH, US). NL (Hinton 21112, ANSM). Pue (Arsène 7084, MEXU). Zac (only the type).A
Distribución
México (país) EndémicoA
Elevación
1600 – 2900 mA
Ecología y Hábitat
On sandstone crevices, calcareous gravelly soil.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC