Guide to Liverworts of Oregon: Key to Genera 66
<1a plants thallose > 2b chloroplasts numerous > 62a thallus tissue homogeneous > 63b thallus ribbon like > 65b ventral scales absent > 66
Silver Falls, Coos Co., Oregon. DHWm1560a
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)
Copyright 2006 Northwest Botanical Institute