Selaginella macrathera Weath.
Descripción
Stems prostrate or creeping, forming loose mats, radially symmetric, 0.3–0.5 mm diam., not articulate, not flagelliform, not stoloniferous, 1–2 times branched; rhizophores borne throughout stem length, filiform, ca. 0.2 mm diam.; leaves of one kind (isophyllous) throughout stem length, grayish green, linear to linearlanceolate, 2.7–5 X 0.3–0.5 mm, bases truncate, abruptly adnate to the stems, glabrous, margins green, short-ciliate proximally, denticulate distally, cilia and teeth hyaline; apices longaristate, aristae hyaline, 1.4–2.6 mm (as long as lamina length or more); strobili quadrangular, 0.5–1.1 cm long; sporophylls monomorphic; megasporangia few, scattered in ventral rows; microsporangia in two dorsal rows and scattered in ventral rows; megaspores deep yellow, reticulate or reticulate on proximal face and rugose to smooth on distal face, 300–360 µm diam.; microspores orange, 40–50 µm diam.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
Chih (Martin et al. s.n., ARIZ). Son (Sanders et al. 13502, UC).A
Distribución
México (país) EndémicoA
Elevación
1100 – 1400 mA
Ecología y Hábitat
On cliffs.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This species is characterized by having the longest aristae, as long as the laminae or longer, of all isophyllous species treated here.A
Bibliografía
C. SEMARNAT 2019: MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010: 101 pp. – https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019#gsc.tab=0 [accessed 2023-05-04 06:16]