Guide to Liverworts of Oregon: Key to Nardia 1

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HOME > ... 12a leaves entire > ... 36 midleaf cells <40μm > Nardia 1

HOME > ... 12b leaves lobed > ...38a shoots wide > ... 44a bulging trigones > Nardia 1

HOME > ... 12b leaves lobed > ...38b shoots tiny > ... 49 oil bodies large > Nardia 1

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Nardia is characterized by the presence of lanceolate underleaves on shoots with round, succubous leaves. (Students are often incredulous that these are considered by hepaticologists as "conspicuous underleaves.") Only Nardia geoscypha and Nardia scalaris are relatively common, the latter occurring down to sea level. The others keyed here are found in Oregon only in high mountains. Note that Nardia breidleri, a species of subalpine to alpine sites, may have its underleaves suppressed when it grows in tight crusts over soil; the colorless, translucent, solitary oil bodies distinguish it from all other liverworts. Five species are known from Oregon; a sixth species has been found in Washington State and northwards: Nardia compressa

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Left two: Waldo Lake, Lane County, Oregon. DHW m0765fd & DHW m0765a; right Deschutes Co., Oregon. DHW 4/VIII/1981.

1a. Oil bodies solitary, 1 per cell (looking like lumps of translucent oatmeal); minute plants only a few mm tall, to .5 mm wide, the leaves bilobed
Nardia breidleri

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Nardia scalaris Goodman Creek, Jefferson Co., Washington. DHW m1116

1b. Oil bodies 2 or more per cell; plants mostly larger, otherwise differing
(Couplet 2)

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