Group: Pteridophytina (Ferns)
Family: Salviniaceae (Watermoss family)
Genus: Azolla (Azolla)
Azolla filiculoides Lam. - Water Fern
Azolla cristata Kaulf. - Carolina Azolla
Free-floating aquatic plants, <ba><b>0.5–1.5 cm large</b></ba>. <span class="v1">plants:</span> with sporo-trophophylls with distinctly segregated generative and vegetative sections. <span class="v1">sporangia:</span> <b>in ovoid sporocarps</b>, <b>at the...
waters