mosquito ferngenus azolla is species of aquatic ferns under the microscope.

aquatic archegonia azolla background beautiful bio botanical botany closeup cycle detail duckweed environment fairy fern ferngenus ferns fertilizer filiculoides fixation floating foliage fresh gametophyte green growth hydrophyte leaf macro microscope microscopen microsporangium microspores mosquito moss natural nitrogen organic pattern pinnata plant salviniaceae small species spore sporocarps study surface texture tropical velvet water weed