Radula voluta

Description

Usually sterile liverwort, forming small, rarely extended, prostrate and flat, thin, pale yellow-green (in deep shade purer green) patches, occasionally as scattered individuals. Shoots robust but delicate and flaccid. Leaves very fragile and soft-textured (brittle and easily fragmenting in dry material), flaccid, slightly undulate, contiguous to slightly imbricate. Lobe nearly plane and horizontally spreading, broadly ovate and somewhat falcate. Lobule large, obliquely subquadrate-rotundate, strikingly undulate (Schuster 1980).