Organizations

Local and regional groups

• California Lichen Society (CALS)
  
• Seattle Lichen Group
  
• North Puget Sound Lichen Study Group (no web site, but the list server for this group's
  events (class and fieldtrip) is npslichens@yahoogroups.com (contact is Melissa Duffy)

National

• American Bryological and Lichenological Society (ABLS)

International

• International Association of Lichenologists (IAL) (includes list of members and email addresses)
• Mycology Net (for MNet email directory select Contacts | Addresses | Mycologists and Lichenologists)
• BLAM (Bryologisch-lichenologische Arbeitsgemeinschaft für Mitteleuropa )
• British Lichen Society
• Estonian Lichenology
• Italian Lichen Society
• Nordic Lichen Society