Selaginella lindenii Spring
Descripción
Stems creeping, stramineous, 16.5 cm long, 0.3–0.4 mm diam., not articulate, not flagelliform, not stoloniferous, 2–3 times branched; rhizophores throughout, filiform, 0.1–0.2 mm diam.; leaves of two kinds (anisophyllous) throughout stem length; lateral leaves ovate-oblong, 1.5–2.2 X 0.7–1.2 mm, bases subcordate, strongly overlapping stems acroscopically, margins whitish to hyaline acroscopically, short- to long-ciliate proximally, denticulate to entire distally, apices obtuse, upper surfaces hispid throughout, without idioblasts, lower surfaces glabrous, striate, with or without obscure idioblasts; median leaves ovate to ovate-elliptic, 0.7–1.2 X 0.4–0.7 mm, bases with small outer auricle, margins hyaline (especially the outer margins), longciliate, apices acute to short-acuminate, both surfaces glabrous, without idioblasts; axillary leaves similar to lateral leaves or more exauriculate, lanceolate; strobili quadrangular, 1–2.5 mm long; sporophylls monomorphic; megasporangia basal in ventral rows; microsporangia in dorsal rows and distal in ventral rows; spores immature.A
Forma de vida
TerrestreA
Ejemplar revisado
Known only from the type collection. Tab (Linden s.n., P).A
Distribución
México (país) EndémicoA
Elevación
Elevation unknown, undoubtedly low.A
Ecología y Hábitat
On shaded, wet rocks.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
In Mexico this species has been misinterpreted by Alston (1955), Smith (1981), Mickel and Beitel (1988), and Fraile (in Davidse et al., 1995), who all considered S. lindenii to include specimens here newly named S. hirtifolia. Selaginella lindenii can be easily distinguished from the latter by the base of the median leaves with (vs. without) outer auricles, lateral leaves with obtuse (vs. acute) apices, and leaves dark to bluish green (vs. light to yellow-green) above. Because of similarities in general habit and leaf shape, S. lindenii may be confused with S. arsiclada, which lacks an outer auricle on the median leaves and hairs on the upper surface of the lateral leaves.
Selaginella lindenii seems to be more closely related to the South American species S. jungermannioides (Gaudich.) Spring and relatives (S. homaliae A. Braun, S. schultesii Alston ex Crabbe & Jermy, S. applanata A. Braun, and S. truncata H. Karst. ex A. Braun). It differs from them by the lateral leaves being hispid above.
A
Selaginella lindenii seems to be more closely related to the South American species S. jungermannioides (Gaudich.) Spring and relatives (S. homaliae A. Braun, S. schultesii Alston ex Crabbe & Jermy, S. applanata A. Braun, and S. truncata H. Karst. ex A. Braun). It differs from them by the lateral leaves being hispid above.
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]