Guide to Liverworts of Oregon: Key to SCAPANIA 6
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Scapania 1 oil bodies several per cell > Scapania 2b marginal teeth evenly spaced or lacking > Scapania 3b dorsal lobe not decurrent > Scapania 5 ventral lobe long decurrent > Scapania 6
Flattened leaf; ventral lobe on left, dorsal lobe on right. Washington, upper Lewis River watershed, Skamania County. D. Stone 28 August 2013.
6a Dorsal lobe only slightly smaller than ventral lobe (on soil or rock, usually near water, at higher elevations, rare)
Scapania subalpina
Scapania undulata Instructional image; shows non-decurrent dorsal lobes.
6b Dorsal lobe only two-thirds or less the size of the ventral lobe
(Couplet 7)
Copyright 2006 Northwest Botanical Institute