*1: Gravelly roadside
bank near Mabe Reservoir, Falmouth, 1962, JAP
(BBSUK) (Paton 1968c: 619, 1969a:
692).
*2: Track of china clay
spoil across marsh, Goss Moor, N. of St Dennis, 1973, JAP
(BBSUK) (Paton 1974a:
161).
Easily misidentified because Riccardia chamedryfolia
occurs with top of thallus concave, but
that species has epidermal cells narrower than those
beneath.
