Lepiota

Mao, Ning, Xia, Lu, Xu, Yu-Yan & Fan, Li, 2023, Lepiota atrobrunneodisca (Agaricaceae, Agaricales), a new species with a hymeniform pileus covering from North China, Phytotaxa 595 (2), pp. 186-198 : 196

Key to the Lepiota species with a hymeniform pileus covering from China

1. Pileus surface usually smooth, not breaking up into scales.......................................................................................... L. coloratipes

1. Pileus surface covered with scales .....................................................................................................................................................2

2. Basidiospores ellipsoid, oblong-ellipsoid in side-view ......................................................................................................................3

2. Basidiospores subtriangular to triangular in side-view with or without lateral knobs in frontal view ..............................................6

3. Annulus covered by minute yellowish brown squamules on lower surface ................................................... L. sinorecondita ad int.

3. Annulus white, smooth.......................................................................................................................................................................4

4. Basidia> 22 μm long ......................................................................................................................................... L. atrobrunneodisca

4. Basidia <22 μm long .........................................................................................................................................................................5

5. Pileus surface covered by brown to yellowish brown small scales.............................................................................. L. apalochroa

5. Pileus surface covered by grey to greyish brown small scales.................................................................................... L. micropholis

6. Basidiospores with lateral knobs in frontal view ..................................................................................... L. cristata var. macrospora

6. Basidiospores not as above.................................................................................................................................................................7

7. Basidiospores> 6 μm long .............................................................................................................................. L. cristata var. cristata

7. Basidiospores <6 μm long ............................................................................................................................................ L. cristatanea