Plants on
bark or on rocks, very rarely on soil. Thallus not borne on a stalk.
Fine hairs present on the thallus undersurface and sometimes on the
margins.
Metzgeria
Plants on soil or
rotten logs, occasionally epiphytic in very humid places. Thallus
often arising from a more or less erect stalk. Margins and
undersurface of thallus without hairs.
University of Tasmania
