Guide to Liverworts of Oregon: Key to SCAPANIA 5
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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
Scapania undulata -
Shoot showing insertion of ventral lobe. Marys Peak, Benton Co., Oregon. DHW m1636
5a Ventral lobe long decurrent
(Couplet 6)
Scapania irrigua
5b Ventral lobe not decurrent or only slightly so
(Couplet 8)
Copyright 2006 Northwest Botanical Institute