Lepiota (Per.: Fr.) Gray, 1821

Liang, Ying-Shan, Xu, Yi-Wen, Ouyang, Min, Huang, Xiao-Xia, Lin, Zhi-Jun & Qiu, Li-Hong, 2023, Lepiota baiyunensis sp. nov. (Agaricales, Agaricaceae) from Baiyun Mountain, China, Phytotaxa 606 (1), pp. 1-15 : 12

Key to the Lepiota species from China

1. Background and lamellae white tone .................................................................................................................................................2

1. Background and lamellae yellow tone .............................................................................................................................................14

2. Pileus surface with pinkish tinge suqamules at the disk.................................................................................... L. catenariocystidiata

2. Pileus surface with brown-toned suqamules at the disk.....................................................................................................................3

3. Pileipellis a hymeniform.....................................................................................................................................................................4

3. Pileipellis a trichodermium.................................................................................................................................................................5

4. Basidiospores truncate or subtriangular ........................................................................................................................ L. cristatanea

4. Basidiospores ellipsoid to narrowly ellipsoid...................................................................................................... L. atrobrunneodisca

5. Clamp connections absent in basidiocarp................................................................................................................... L. furfuraceipes

5. Clamp connections present in basidiocarp .........................................................................................................................................6

6. Basidiospores non-dextrinoid, not metachromatic in cresyl blue ................................................................................ L. subcastanea

6. Basidiospores dextrinoid, not metachromatic in cresyl blue..............................................................................................................7

7. Cheilocystidia absent......................................................................................................................................... L. brunneosqualulosa

7. Cheilocystidia present ........................................................................................................................................................................8

8. Lamellae free to subfree, moderately crowded, denticulate.............................................................................................. L. venenata

8. Lamellae free, moderately crowded, plane.........................................................................................................................................9

9. Pileus with sulcate striations ............................................................................................................................................................10

9. Pileus without sulcate striations .......................................................................................................................................................11

10. Pileus with yellowish brown, reddish brown to dark brown squamules; stipe surface covered by reddish brown squamules at base ................................................................................................................................................................................. L. amplicystidiata

10. Pileus with brownish yellow to yellowish brown squamules; stipe surface covered by whitish to grayish orange squamules at lower part..................................................................................................................................................................................... L. attenuate

11. Basidiomata medium-sized to big; pileus 40–90 mm in diam ................................................................................ L. nigrosquamosa

11. Basidiomata slender, small-sized; pileus 10–40 mm in diam ..........................................................................................................12

12. Basidiospores subtriangular............................................................................................................................................ L. mandarina

12. Basidiospores ellipsoid or ellipsoid to oblong..................................................................................................................................13

13. Pileus with brownish orange, light brown to dark brown squamules; basidiospores 6–7 × 4–5 μm ................... L. angusticystidiata

13. Pileus with brown to reddish brown suqamules; basidiospores 9–12 × 6–8 μm.................................................... L. pallidiochracea

14. Pileus surface with yellowish-brown granular pyramidal ........................................................................................... L. omninoflava

14. Pileus surface with brown aggregated fibrillose scales................................................................................................. L. baiyunensis