Guide to Liverworts of Oregon: Key to Genera 23
1b plants leafy > 3b leaves not divided, not ciliate > 6a oil bodies 2+ or unknown > 7b no small dorsal lobe > 10b leaves incubous > 20b lobule absent > 23
23a Leaves divided 1/3 to ½ their length into 3 or 4 finger-like lobes; underleaves deeply 3-4lobed; small plants (the shoots less than 1 mm across) with regular pinnate branching
Left: Calypogeia; right: Bazzania.
23b Leaves (and usually underleaves) entire to shallowly 2-3 toothed; larger plants with irregularbranching
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