A subclass of mosses sometimes known as ‘true mosses’ and sometimes elevated to the level of a class (Bryopsida). They form by far the largest group of mosses. The protonema is typically filamentous, and from it arise buds which develop into gametophytes. The gametophyte may be acrocarpous or pleurocarpous, and varies greatly in size and shape. The capsule opens by a lid; a peristome may or may not be present. They are found all over the world in most types of habitat.
Subjects: Plant Sciences and Forestry.