(order Metzgeriales, class Hepaticae)
A genus of thallose liverworts, which includes P. epiphylla, one of the commonest and most conspicuous of all liverworts, and often studied as a representative of this group of plants in elementary botany courses. The thallus is robust, several centimetres long and up to 1 cm across. It has an ill-defined midrib, and is irregularly branched, often spreading to form extensive carpets. Older parts are dark green, while the growing tips are pale green. Pellia species are found on moist banks by ditches and streams, also on damp peat in heaths, moors, and on mountains.
Subjects: Plant Sciences and Forestry.