Selaginella convoluta (Arn.) Spring
Descripción
Stems fasciculate from a rhizomatous base, rosette-forming or occassionally erect, green or sometimes reddish, 4–15 cm long, 0.7–1.2 mm diam., not articulate, not flagelliform, not stoloniferous, 2–3 times branched; rhizophores restricted to bases of stems, filiform, 0.2–0.5 mm diam.; leaves of two kinds (anisophyllous) throughout stem length, coriaceous; lateral leaves ascending, imbricate, broadly ovate, 2.5–3 X 1.5–2 mm, bases peltate, truncate, short-ciliate, margins hyaline to greenish, with a submarginal brown band, short-ciliate to denticulate, ápices acute to acuminate; median leaves imbricate, ovate to ovateoblong, 2.2–3 X 0.8–1.5 mm, bases peltate, truncate, denticulate to short-ciliate, margins greenish to hyaline, short-ciliate, denticulate distally, apices acute to acuminate; axillary leaves similar to lateral leaves or more lanceolate; strobili quadrangular, 5–25 mm long; sporophylls monomorphic; megasporangia mostly basal in two ventral rows; microsporangia in two dorsal rows and distal in ventral rows; megaspores and microspores not seen.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
Yuc (Gaumer 1982, NY; Gaumer et al. s.n., ARIZ; Steere 2171, US; Valdéz 50, F, NY, US).
Unverified, Doubtful, or Mistaken Reports. Camp (Cebellos-Cambranis 136, UADY, cited by Palacios-Rios, 2002a, but not verified).
A
Unverified, Doubtful, or Mistaken Reports. Camp (Cebellos-Cambranis 136, UADY, cited by Palacios-Rios, 2002a, but not verified).
A
Elevación
0 – 100 mA
Ecología y Hábitat
In dry, exposed conditions on roadsides and slopes.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Among the rosette-forming selaginellas of Mexico, S. convoluta is distinct by its peltate lateral leaf bases with a single auricle and its occurrence only on the Yucatan Peninsula.A