Limacella

Ji, Hui-Min, Fu, Hao-Yu, Zhang, Yu-Xin & Fan, Li, 2025, Limacella urbana, a new species of Limacella s. lat. (Amanitaceae) in Shanxi Province of northern China, Phytotaxa 714 (3), pp. 223-236 : 233-234

Key to the species of Limacella , Limacellopsis and Zhuliangomyces in China

1. Annulus present and large; pileipellis an ixotrichoderm composed of inflated cells in short chains, and attenuate terminal cells; pileus yellowish brown to pinkish brown; basidiospores globose to subglobose; clamps present .................. Limacellopsis asiatica

1. Annulus absent or not obvious; pileipellis an ixotrichoderm composed of subcylindrical terminal cells, inflated cells in short chains absent..................................................................................................................................................................................................2

2. Stipe dry and covered with squamules; annulus nongelatinized and rudimental...............................................................................3

2. Stipe glutinous to strongly viscid, glabrous or covered with squamules; annulus absent, or strongly gelatinized if present............5

3. Pileal margin striate................................................................................................................................................. Limacella urbana

3. Pileal margin non-striate.....................................................................................................................................................................4

4. Pileus red-brown to brownish; stipe red-brown to brown; stipe base subcylindrical to attenuate downwards; basidiospores globose to subglobose, smooth ............................................................................................................................................ Limacella delicata

4. Pileus brownish yellow to yellow, blackish brown at centre; stipe whitish to brownish; stipe base somewhat enlarged; basidiospores subglobose to broadly ellipsoid, verruculose ................................................................................................... Limacella taiwanensis

5. Pileus cream white to slightly pale yellowish-brown.................................................................................. Zhuliangomyces illinitus

5. Pileus yellowish-brown to dark brown to dark olivaceous ................................................................................................................6

6. Pileus dark olivaceous, umbonate, 30–50 mm in diam.; margin non-striate; basidiospores broadly ellipsoid to ellipsoid, fruiting on soil under Rhododendron .......................................................................................................................... Zhuliangomyces olivaceus

6. Pileus yellowish-brown to dark brown...............................................................................................................................................7

7. Pileus margin non-striate................................................................................................................................. Zhuliangomyces terrus

7. Pileus margin striate ...........................................................................................................................................................................8

8. Pileus up to 40 mm in diam., non-umbonate, light grayish brown, easily separated from stipe when mature; basidiospores subglobose to broadly ellipsoid; fruiting in bamboo woods .................................................................... Zhuliangomyces bambusus

8. Pileus up to 60 mm in diam., umbonate, brown-yellow, not easily separated from stipe; basidiospores broadly ellipsoid to subovoid; growing in mixed forests .................................................................................................................. Zhuliangomyces ochraceoluteus