Nowellia curvifolia (Rustwort)

1/7/2012 · Beaver Brook Association Trails, Hollis, New Hampshire · ≈ 8 × 5″ (19 × 13 cm)

1/7/2012 · Beaver Brook Association Trails, Hollis, New Hampshire · ≈ 7 × 4½″ (17 × 11 cm)

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Division	Hepatophyta	Liverworts: simple, non-vascular plants
Subdivision	Hepaticae	Thallose and leafy liverworts
Class	Hepatopsida	Liverworts with prostrate form, extending horizontally, with leaflike form
Subclass	Jungermanniae	Hepatic mosses, named for botanist Ludwig Jungermann
Order	Jungermanniales	Liverworts with thin leaf-like flags on each side of the stem; other liveworts lack evidence of leaves
Family	Cephaloziaceae	From the genus name Cephalozia, and the family suffix -aceae—leafy liverworts
Genus	Nowellia	For William Nowell (1880–1968), a British botanist and mycologist
Species	curvifolia	From Latin curvātum, ”to bend,“ and folium, ”foliage.“ It refers to leaves, which distinctly curve upwards from the petioles