Guide to Liverworts of Oregon: Key to Genera 66
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<1a plants thallose > 2b chloroplasts numerous > 62a thallus tissue homogeneous > 63b thallus ribbon like > 65b ventral scales absent > 66
Silver Falls, Coos Co., Oregon. DHW
m1560a
66a Thallus with hairs on margin (one species hairy above, also); thallus with distinct, narrow midrib
and broad, unistratose wings; less than 2 mm wide
Metzgeria
Moerckia hibernica; Gold Lake, Lane Co., Oregon. DHW m2272
66b Thallus without hairs; thallus thinning gradually from middle to margin, unistratose portion (if any)
not wide or abruptly demarcated; often wider than 2 mm
(Couplet 67)