Guide to Liverworts of Oregon: Key to SCAPANIA 9
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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 5b ventral lobe not decurrent > Scapania 8b marginal cells without thickened cell walls > Scapania 9
Scapania irrigua, midleaf cells. SE of Mt. Adams, Skamania Co., Washington. D. Stone 8354.15.
9a Aquatic; 3-5 small oil- bodies per cell; shoots robust, usually 1-5 cm; leaves entire to usually minutely toothed; in or near water, montane
Scapania irrigua
9b Terrestrial; 2-6 large oil bodies per cell, obscuring most of cell lumen; shoots small, usually .6-1.2 cm; on soil or rocks, coastal or coast mountains
Scapania mucronata
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