Bachmanniomyces Bachmanniomyces punctum Bachmanniomyces sp. P4603 Bactridium Bactridium flavum Bactrodesmium Bactrodesmium abruptum Bactrodesmium betulicola Barbatosphaeria Barbatosphaeria dryina Barbatosphaeria hippocrepida Barrmaelia Barrmaelia macrospora Barrmaelia oxyacanthae Battarrina Battarrina inclusa Belonidium Belonidium mollissimum - see Trichopeziza mollissima Berkelella Berkelella stilbigera Berlesiella Berlesiella nigerrima Bertia Bertia gigantospora Bertia moriformis Bionectria Bionectria ralfsii Biscogniauxia Biscogniauxia anceps Biscogniauxia marginata Biscogniauxia mediterranea Biscogniauxia nummularia Bisporella Bisporella citrina - see Calycina citrina Blumeriella Blumeriella kerriae Boeremia Boeremia hedericola Bombardia Bombardia bombarda Bombardioidea Bombardioidea bombardioides Bombardioidea serignanensis Bombardioidea stercoris Botrytis Botrytis cinerea Botrytis tulipae Brachysporium Brachysporium nigrum Briancoppinsia Briancoppinsia cytospora Bryomyces Bryomyces velenovskyi Bryostroma Bryostroma sp. P5597 Bryoscyphus Bryoscyphus marchantiae Buergenerula key Buergenerula sp. P2668 Bulgaria Bulgaria inquinans Byssonectria Byssonectria fusispora Byssonectria terrestris Byssosphaeria Byssosphaeria schiedermayeriana