Bifid Crestwort

Lophocolea bidentata

This liverwort is a translucent, pale green in colour with shoots 2 to 4 mm wide sometimes stretching to sevral cm in length. The conspicuously bilobed leaves are 2 mm in length with the lobes drawn out to a long, narrow point. The underleaves are also bilobed, with an additional lateral tooth on each side. The plant is strongly aromatic, and often fertile, with toothed perianths.
Bifid Crestwort A leafy liverwort - these plants go waaaaaay back. Liverworts are considered to be amongst the first true plants and have been around for something like 400,000,000 years! They rather like the wet, so are quite common around here, often mixed in with mosses.
http://www.naturespot.org.uk/species/bifid-crestwort Bifid Crestwort,Geotagged,Lophocolea bidentata,United States,Winter

Habitat

Found in a wide range of habitats, on the ground in woodland, grassland and heathland, as well as on other plants and rocks.

References:

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http://www.naturespot.org.uk/species/bifid-crestwort
Taxonomy
KingdomPlantae
DivisionMarchantiophyta
ClassMarchantiopsida
OrderJungermanniales
FamilyLophocoleaceae
GenusLophocolea
SpeciesLophocolea bidentata