Selaginella eremophila Maxon
Descripción
Stems prostrate, forming dense mats, not readily fragmenting, dorsiventral, tips upturned, 3–8 cm long, 0.4–0.6 mm diam., not articulate, not flagelliform, not stoloniferous, irregularly 2–3 times branched; rhizophores borne throughout stem length, 0.2 mm diam.; leaves of one kind (isophyllous) throughout stem length, tightly appressed, green, apices with caducous, twisted, hyaline aristae, aristae ± 0.3 mm, deciduous, the leaf apices becoming acute to slightly mucronate in oldest branches; upperside leaves lanceolate, 1.3–1.4 X 0.3–0.4 mm, bases abruptly adnate, pubescent, margins ciliate, cilia transparent to opaque; underside leaves lanceolate to lanceolate-elliptic (on central rows) or falcate (on marginal rows), 2–2.7 X 0.5–0.7 mm, bases decurrent, glabrous, margins ciliate, cilia transparent to opaque, spreading or ascending; strobili quadrangular, 3–8 mm long; sporophylls monomorphic; megasporangia scattered in ventral rows; microsporangia in two dorsal rows and scattered on ventral rows; megaspores pale yellow, reticulate, 230–340 µm diam.; microspores bright orange, 23–38 µm diam.A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
BCN (Moran 15695, MEXU, UC, 24860, UC, 8524, DS, UC; Moran & Thorne 14429, ENCB, UC; Thorne & Charlton 60172, MEXU; Wiggins 9981, DS; Wiggins & Thomas 272, DS, ENCB). Coah (Shreve & Tinkham 9851, ARIZ). Son (Felger & Broyles 89-28, MEXU, TEX; Moser et al. 18135, ENCB).A
Elevación
300 – 2050 mA
Ecología y Hábitat
On rocky and sandy slopes, in open rock crevices or in soil.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Selaginella eremophila is most closely related to S. carnerosana, S. landii, and S. parishii. In S. arizonica, S. basipilosa, S. carnerosana, S. eremophila, S. landii, S. parishii, and S. peruviana, the leaves are arranged in eight conspicuous rows: 3 underside (2 marginal, 1 central), 2 lateral, and 3 upperside (2 marginal, 1 central).A