Guide to Liverworts of Oregon: Key to Genera 76
HOME SPECIES INDEX GENUS INDEX GLOSSARY
1a plants thallose > 2b chloroplasts numerous > 62b thallus tissue complex > 70b terrestrial > 72b pores differentiated > 73b gemmae absent > 75a trigones large > 76
Targionia hypophylla, Monterey Co., California. DHW m1231a
76a Stalked receptacles lacking, the capsules maturing on underside of thallus tips, inside a 2-valved, black, shiny involucre; cells around pores with thin walls; common
Targionia hypophylla
Reboulia hemisphaerica, Sandy River, Multnomah Co., Oregon. DHW m2390.
76b Capsules borne on stalked, star-shaped receptacles; cells around pores with thickened radial walls; to date only known from Columbia
River Gorge and Wallowas
Reboulia hemisphaerica