Genera Alphabetical
A
| Zygomycetes | / Absidia |
| Anamorphic | / Acremonium |
| Anamorphic | / Acrodictys |
| Anamorphic | / Acrodontium |
| Anamorphic | / Acrogenospora |
| Anamorphic | / Acrospeira |
| Zygomycetes | / Actinomucor |
| Anamorphic | / Alternaria |
| Anamorphic | / Ambrosiella |
| Anamorphic | / Anguillospsora |
| Anamorphic | / Annellophora |
| Anamorphic | / Apiospora |
| Anamorphic | / Arthrinium |
| Anamorphic | / Arthrobotrys |
| Anamorphic | / Aspergillus |
| Anamorphic | / Asteromyces |
| Anamorphic | / Aureobasidium |