Guide to Liverworts of Oregon: Frullania californica M.A. Howe
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Frullania 1b lobule flask shaped > Frullania 2b lobe tip round to obtuse > Frullania 3b no line of dark cells midleaf > Frullania californica
Synonym: None.
Special Status: None.
Recognition: Plants nearly 1 mm wide; ventral lobule modified into an urn shaped flask; dorsal lobe round at apex; ocelli absent from dorsal lobe or only scattered ocelli present not arranged in a line.
Distribution: On rock (most often) or trees (less frequently); throughout western Oregon.
Comments: This plant is not easy to distinguish from F. nisquallensis with a handlens; it takes practice to be confident that no apiculate lobes are present. See discussion under F. nisquallensis for issues regarding differentiation of these two species.
Frullania californica, Mount June, Lane Co., Oregon. DHW 4710.
Left: Dorsal aspect; shoot with gynoecium. Right: Ventral aspect.