miniature ground cover on moist creek bed.
Sheltering one of the many Pseudacris metamorphs
observación en microscopio estereoscópico de una muestra tomada de un pozo
En REPSA, sendero ecológico de Universum, UNAM
Growing in what looked like a former cow pond, now mostly grown in.
Recently (re)colonized area.
Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like conventional ferns but more resembling duckweed or some mosses.