Guide to Liverworts of Oregon: Key to Genera 50

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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 bilobed > 37b if rhizoids red, stems red > 38b shoots mostly <0.5 mm wide > 47b underleaves inconspicuous > 50


Gymnomitrion obtusum - Stone Chair Trail, Coos County, Oregon. DHW m0015a.


50a Sterile shoots julaceous, the leaves appressed and overlapping; perianth poorly developed,never projecting far beyond the female bracts; oil bodies few, 2-3 (rarely to 6) per cell, lumpy-amorphous to granulose, more than twice as large as the chloroplasts
(Couplet 51)


Cephalozia lunulifolia, Douglas Co., Oregon. DHW 8709.


50b Sterile shoots with leaves more-or-less remote and/or spreading; perianth well developed; oil bodies various, usually more than 4/cell but sometimes lacking
(Couplet 52)


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Copyright 2006 Northwest Botanical Institute