Selaginella schiedeana A.Braun
Descripción
Stems prostrate, becoming long-trailing, stramineous to pale green, to 8 cm long, ca. 0.3 mm diam., not articulate, not flagelliform, not stoloniferous, 2–3 times branched; rhizophores borne throughout stem length, filiform, ca. 0.1 mm diam.; leaves of two kinds (anisophyllous) throughout stem length; lateral leaves ovate, less than 2 mm long, bases rounded, with a few long cilia at base, otherwise finely denticulate, apices acute; median leaves ovate, bases rounded, margins long-ciliate to tips, with narrow white borders, apices long-acuminate; axillary leaves oblong, exauriculate, with a few long cilia at bases, denticulate apically, apices acute; strobili quadrangular, 2–3 mm long; sporophylls monomorphic and of two colors, dorsal rows green, ventral rows colorless; megasporangia in two ventral rows; microsporangia in two dorsal rows; megaspores lemon-yellow, with low reticulum, 250–300 µm diam.; microspores red-orange, with low broad papillae of irregular size and shape.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Martínez et al. 25130, MEXU). Méx (Abundiz Bonilla 299, ENCB). Oax (Mickel 1480, 5820, NY, UC). SLP (Fryxell & Magill 2281a, MEXU; Rzedowski 10475, ENCB). Ver (Copeland herb. 167, MEXU, UC; Nee & Hansen 18408, F, MEXU; Purpus 2938, F, UC).A
Distribución
México (país) EndémicoA
Elevación
0 – 1100 mA
Ecología y Hábitat
On Atlantic slopes.A
Tipo de vegetación
Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
The combination of creeping habit, ciliate median leaves, proximally ciliate axillary leaves, lateral leaves with glabrous surfaces, short-ciliate sporophylls, each with a denticulate midrib, and lemon-yellow megaspores distinguish S. schiedeana from similar species (such as S. mixteca) with prostrate habit and denticulate median leaves.A