Salvinia auriculata Aubl.
Descripción
Rhizomes with U-shaped stele in cross section; floating leaves orbicular to orbicular-cordate, wider than long (in the sun), 1.5–2 X 1.8–2.5 cm, notched on both ends, adaxial side with numerous elongate conical papillae over entire surface in rows between main veins, papillae with 4 (rarely 2) hairs, joined together at their tips into a darkened knot; sporocarps pedunculate on branched axes, oldest on longest peduncles, with all sporocarps hanging at about same level, globose, not markedly apiculate; 2n=54 (Trin).A
Forma de vida
Hidrófita libreA
Ejemplar revisado
Camp (Ramírez R. 91, UAMIZ). Chis (Breedlove 34932, DS, LL, MICH, MO, NY, 56079, CAS, ENCB). Gro (Boege 638, CAS). Oax (Riba 1701, UAMIZ). Tab (Cowan 2807, CSAT, NY; Magaña & Priego 1269, ENCB, XAL). Tam (Palmer 312, CAS, K, NY, US; Rzedowski 24575, DS, ENCB, LL). Ver (Rico-Gray 39, XAL).
Unverified, Doubtful, or Mistaken Reports. Jal (Pocovi 15485, GUADA, cited by Mickel, 1992, but not verified; see comments under S. mínima). Mich (reported in the range by Mickel & Beitel, 1988, and Mickel, 1992, but not verified).
A
Unverified, Doubtful, or Mistaken Reports. Jal (Pocovi 15485, GUADA, cited by Mickel, 1992, but not verified; see comments under S. mínima). Mich (reported in the range by Mickel & Beitel, 1988, and Mickel, 1992, but not verified).
A
Elevación
0 – 50 mA
Ecología y Hábitat
Floating in still or stagnant fresh water or margins of slowly flowing streams.A
Categoría IUCN
Preocupación menor (LC)B
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
The Salvinia auriculata complex, with the hairs joined at their tips, consists of at least four species, three of which have not been reported north of South America (de la Sota, 1976; Forno, 1983; Mitchell, 1972; Mitchell & Thomas, 1972). The species in the complex other than S. auriculata itself have the main axis of the submerged leaf straight, rather than curved, and sporocarps are apiculate on long, many-branched fertile axes.A