Guide to Liverworts of Oregon: Key to Genera 21

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1b plants leafy > 3b leaves not divided, not ciliate > 6a oil bodies 2+ or unknown > 7b no small dorsal lobe > 10b leaves incubous > 20a lobule present > 21


Radula.


21a Underleaves absent; the cells usually with a single, large, brown or greenish-brown oil body
Radula



Frullania


21b Underleaves present and conspicuous; oil bodies numerous in each cell
(Couplet 22)


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