Anyone who knows the Mawddach Valley well, is well accustomed to its wet weather. Although this is a burden that we all have to live with, it is also one of the things that makes the area special. In the deep ravines on our reserve, the constant flow of water and thick canopy of trees means that the air is always wet-ideal conditions for mosses and liverworts.
Hiden within the carpets of common species lurk some very rare and specialist species. These rarities make our reserve internationally important and a recent survey of Coedydd Abergwynant has highlighted how special the area is for these small green plants. Species such as Adelanthus decipiens or Radula voluta may not mean much to most naturalists, but to bryologists they are very exciting and show what a special place the Mawddach Valley is.