Salvinia minima Baker
Descripción
Rhizomes with circular stele in cross section; floating leaves orbicular to slightly oblong, wider than long, 0.6–1.5 X 0.6–2 cm, cordate at bases, obtuse (to rarely notched) at apices, adaxial surfaces with numerous conical papillae (2–3 mm long) over entire surface in rows between main veins, with 4 hairs spreading and free at their tips; sporocarps sessile on unbranched, pendent main axes of fertile leaves, lemon-shaped, somewhat apiculate.A
Forma de vida
Hidrófita libreA
Ejemplar revisado
Camp (Sanders et al. 9743, UC, UCR). Chis (Breedlove 56065, CAS, NY; Morley 714, MO, UC, US). QR (Lot & Novelo 787, MEXU). Tab (Cowan 2805, CSAT, NY; Magaña et al. 335, CAS, K, MEXU). Tam (LeSueur 8, TEX). Ver (Faden et al. 76/154, UC; Gutiérrez 1594, XAL). Yuc (Gaumer 1007, F, GH, NY, US).A
Elevación
0 – 650 mA
Ecología y Hábitat
Floating in marshes, lakes, ponds and quiet backwaters of streams and rivers.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pocovi s.n. (UAMIZ), from Jalisco, seems to be S. mínima on the basis of leaf size, but the hairs at the tips of the papillae are too poorly developed to assess the critical character. A specimen from Tabasco, Gliessman et al. 1694 (CSAT, MO p.p., NY, TEX) has the papillae very reduced or obsolete; it has the blade size of S. mínima, but the adaxial papillae are similar to S. auriculata.
Most New World specimens identified as S. natans (L.) All., a Eurasian species, are actually S. minima. Salvinia natans resembles S. mínima in its spreading hairs at the tips of short papillae and round sporocarps.
A
Most New World specimens identified as S. natans (L.) All., a Eurasian species, are actually S. minima. Salvinia natans resembles S. mínima in its spreading hairs at the tips of short papillae and round sporocarps.
A