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Family: Pallaviciniaceae
Pallavicinia lyellii is a thallous liverwort. A characteristic feature is the central vein or spine-like structure along each "leaf". These specimens were found along a small seep in a moderately steep ravine growing on moist, decaying logs.
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30 September 2017
Bull Run Mountains Natural Area Preserve, Haymarket, Virginia 
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30 September 2017
Bull Run Mountains Natural Area Preserve, Haymarket, Virginia 
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29 September 2017
Bull Run Mountains Natural Area Preserve, Haymarket, Virginia (photo taken at 20x magnification; note the reproductive structures protruding from the thallous) 
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