One of America's oldest botanical organisations, the ABLS is devoted to the scientific study of all aspects of the biology of bryophytes and lichen-forming fungi. The page also links to introductory information on bryophytes and to a full list of North American bryophyte herbaria, organised by acronym. Many of the journal articles are floral checklists from areas within the former Soviet Union.
All information provided is in English, a mirror site is available in Russian.
Subscription rates and details of the current editorial board are also provided. The Society was founded in 1896 and works on the study and conservation of mosses and liverworts worldwide. The site carries regular updates. The site highlights the importance of bryophytes in the world's ecosystems and provides a classification scheme for them. It was initially formed to give access to the results of a study of the liverwort suborder, Fossombroniineae .