Guide to Liverworts of Oregon: Key to Marsupella 8
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Marsupella 1b plants dioicous > Marsupella 5b plants not julaceous > 6b leaves divided .3 -.6 > Marsupella 8
Near Yosemite Valley, Sierra Nevada, California, M. Hutten, June 2012.
8a Leaves 0.3-0.6 bilobed, lobes broadly rounded (subacute in fo. media), sinus acute; plants deep dull green to black, brownish above, shoots up to 5 cm high; oil bodies mostly 2 per midleaf cell, rarely 3; rhizoids few; subalpine to alpine, becoming more common northward
Marsupella sphacelata
Marsupella bolanderi, Monterey Co., California. DHW m1230
8b Leaves 0.3-0.35 bilobed, lobes rounded-acute to obtuse, sinus generally obtuse to rounded; plants red-green to dark-reddish brown, up to 0.5 cm high; oil bodies 2-4 per midleaf cell; rhizoids numerous; coastal to low mountains of SW Oregon and southward
Marsupella bolanderi