Guide to Liverworts of Oregon: Key to Tritomaria 1
HOME SPECIES INDEX GENUS INDEX GLOSSARY
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 > 39b underleaves inconspicuous > 55a leaves transverse > 56a leaves asymmetrical > Tritomaria 1
Note: None of these species are known from low elevations forests of western Oregon. They are primarily of high mountain and east side habitats. This key follows Smith (1990) with little change.
1a Gemmae rare, yellowish-green; leaves undulate when moist, crisped when dry, lobes not toothlike
Tritomaria quinquedentata
Tritomaria exsecta, shoot tip with gemmae. Crane Creek watershed, Grant County. A.Hardman 6000.
1b Gemmae very common, deep red; leaves not undulate when moist nor crisped when dry; dorsal lobe lateral and toothlike
(Couplet 2)