1. Pertaining to or characteristic of fungi of the class Basidiomycetes

See also: basidiomycete

• order Actinaria
• order Actiniaria
• order Actinomycetales
• order Actinomyxidia
• order Aepyorniformes
• order Agaricales
• order Alcyonaria
• order Alismales
• order Amoebida
• order Amoebina
• order Amphipoda
• order Anacanthini
• order Anaspida
• order Andreaeales
• order Anguilliformes
• order Anoplura
• order Anostraca
• order Anseriformes
• order Anthocerotales
• order Anura
• order Aphyllophorales
• order Aplacophora
• order Apodes
• order Apodiformes
• order Apterygiformes