Selaginella eurynota A.Braun
Descripción
Stems suberect, greenish to stramineous, 20–35 cm long, ca. 1 mm diam., articulate, not flagelliform, not stoloniferous, 2–3 times branched; rhizophores in proximal 1⁄4 of stems, stout, straight, 0.4–0.5 mm diam.; leaves of two kinds (anisophyllous) throughout stem length; lateral leaves obliquely oblong, slightly to highly curled, 4–4.5 mm long near stem tips, 1–1.5 mm long near base of plants, bases truncate to subcordate, centrally attached, margins short-ciliate at bases, denticulate distally, apices acute; median leaves obliquely ovate-lanceolate, bases with a single peltate auricle, margins ciliate, apices long-acuminate; axillary leaves linear-oblong, auriculate with incurved auricles, ciliate in lower 1⁄2, denticulate distally; strobili quadrangular, 3–6 mm long; sporophylls monomorphic; megasporangia single at base of strobili; microsporangia occupying most of strobili; megaspores beige, reticulate with white, high ridges, 450–540 µm diam.; microspores beige.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 28620, NY; Matuda 18036, US).A
Elevación
50 – 900 mA
Ecología y Hábitat
On shaded roadsides and streambanks in wet tropical forests on Pacific slope.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Selaginella eurynota is part of an incompletely resolved complex that includes S. schizobasis and S. sertata. Selaginella eurynota is characterized by having axillary leaves on the main stems with two incurved, ciliate auricles (vs. auricles divergent in S. schizobasis and absent on mature, non-stoloniferous stems of S. sertata) and lateral leaves with an acroscopic auricle clasping and directed downward along the stem (vs. only clasping, but not downward-directed in S. schizobasis and absent on mature, nonstoloniferous stems in S. sertata).
Specimens cited by Mickel and Beitel (1988) from Oaxaca as S. eurynota have been assigned to S. sertata (which see for discussion), as have some collections from Guerrero and Jalisco. These specimens all show their main stems to have arisen from flagelliform branches, as is characteristic of S. sertata.
A
Specimens cited by Mickel and Beitel (1988) from Oaxaca as S. eurynota have been assigned to S. sertata (which see for discussion), as have some collections from Guerrero and Jalisco. These specimens all show their main stems to have arisen from flagelliform branches, as is characteristic of S. sertata.
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]