Guide to Liverworts of Oregon: Key to Genera 44
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1b plants leafy > 3b leaves not divided, not ciliate > 6a oil bodies 2+ or unknown > 7b no small dorsal lobe > 10a succubous > 11a anisophyllous > 12b leaves lobed > 37b if rhizoids red, stems red > 38a shoots wider than 1 mm > 39a underleaves conspicuous > 40b underleaves narrow to lanceolate > 43a underleaves lanceolate > 44
Nardia scalaris Goodman Creek, Jefferson Co., Washington. DHW m1116
44a Cells usually with bulging trigones; underleaves quite entire; leaves overlapping, almost transversely inserted; on soil or peat, at all
elevations
Nardia
3 Sisters Wilderness, Lane Co., Oregon. DHW
m1774
44b Cell walls thin, trigones hardly developed; underleaves often toothed on side; leaves spreading, nearly horizontally inserted; on peat at high
elevations
Harpanthus flotovianus