Key to the known species of Alloexidiopsis worldwide

1. Basidiospores allantoid.......................................................................................................................................................................2

1. Basidiospores cylindrical....................................................................................................................................................................3

2. Hymenial surface smooth, basidiospores <14 μm long...................................................................................... Alloexidiopsis nivea

2. Hymenial surface grandinoid, basidiospores> 14 μm long ............................................................................ Alloexidiopsis sinensis

3. Basidia <28 μm long, cystidia cylindrical.........................................................................................................................................4

3. Basidia> 28 μm long, cystidia clavate to fusiform.................................................................................. Alloexidiopsis yunnanensis

4. Hymenial surface smooth...................................................................................................................................................................5

4. Hymenial surface granulose to pruinose ............................................................................................................ Alloexidiopsis calcea

5. Basidiospores> 11 μm long, cystidia <25 μm long ................................................................................ Alloexidiopsis australiensis

5. Basidiospores <11 μm long, cystidia> 25 μm long ................................................................................... Alloexidiopsis schistacea