Below you find links to some resources
1) Index Fungorum - CABI Biosciences resources for taxonomic information on fungi
2) Species Fungorum - CABI Biosciences resources for all describes fungal species
2) The Geosiphon-symbiosis pages - about an 'AM fungus' forming symbiosis with cyanobacteria
3) The SYMPLANTA lab, working on AM fungi (partly commercial) and providing, e.g., the AMF-species list