Ephemeraceae
- Description with illustrations of Micromitrium tenerum and several Ephemerum species.
- http://delta-intkey.com/britms/www/ephemera.htm

Ephemeracea
- Detailed technical description of the genera Ephemerum and Micromitrium and an illustration of Ephemerum cohaerens.
- http://www.mobot.org/plantscience/bfna/v1/epheephemeraceae.htm

Serrate Ephemerum Moss
- Several photographic images of Ephemerum serratum.
- http://plants.usda.gov/java/profile?symbol=EPSE6&photoID=epmi5_003_ahp.jpg