taxonID	type	description	language	source
8DA9E13CF8C65C8DA347650959A034E6.taxon	description	Figs 2, 3	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
8DA9E13CF8C65C8DA347650959A034E6.taxon	diagnosis	Diagnosis. Distinguished from other Gerronema species by the combination characters, including caespitose habit, greenish green pileus, narrow and close lamellae, slender stipe, baidiospores measuring (4) 4.5 – 5.5 × 2.5 – 3.5 μm, mainly clavate to narrowly utriform cheilocystidia.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
8DA9E13CF8C65C8DA347650959A034E6.taxon	etymology	Etymology. angustum (Latin), referring to the narrow lamellae of this species.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
8DA9E13CF8C65C8DA347650959A034E6.taxon	description	Description. Basidiomata small-sized. Pileus 10 – 18 mm broad, infundibuliform, umbilicate to deeply umbilicate at center, greyish brown to brown (6 E 3 – 4) when young, greyish green (30 B 3 – 4, 30 C 2 – 3) when old, greyish green (30 E 5 – 6) at center, surface moist, glabrous, margin inflexed, radially striped with greenish grey to dull green (30 B 4 – 5, 30 D 4 – 5) lines. Lamellae decurrent, close, narrow, arcuate, even, white (30 A 1) to greenish grey (30 B 2), with 1 – 3 lamellulae. Stipe 45 – 60 × 2 – 5 mm, slender, centric, cylindrical, hollow, fragile, grey to greyish green (30 C 1 – 3), covered with white (30 A 1) fibrils. Odor and taste not recorded. Basidiospores (4) 4.5 – 5.5 × 2.5 – 3.5 μm, L m = 4.88 ± 0.51 µm, W m = 2.96 ± 0.32 µm, Q = (1.33) 1.43 – 1.83, Q m = 1.66 ± 0.18, ellipsoid to oblong, smooth, thin-walled, hyaline, guttulate, inamyloid. Basidia 18 – 26 × 5.5 – 7 μm, clavate, thin-walled, hyaline, 4 - spored, with sterigmata 2.3 – 4.4 µm long. Cheilocystidia 26 – 45 × 6 – 9.5 μm, clavate, fusiform to narrowly utriform, thin-walled, hyaline. Pleurocystidia not seen. Lamellar trama regular to subregular, hyphae 3 – 22 μm wide, cylindrical, thin-walled, hyaline. Pileipellis a cutis, hyphae 1.5 – 24.5 μm wide, smooth, hyaline; pileocystidia 22.5 – 65 × 8 – 15.5 µm, oblong to utriform, thin-walled, greyish brown to light brown pigmented in KOH. Pileus trama subregular, sarcodimitic. Stipitipellis a cutis, hyphae 3.5 – 25 μm wide, sometimes upturned hyphae, smooth, thin-walled, hyaline; caulocystidia 56 – 72 × 10.5 – 20.5 µm, narrowly cylindrical to oblong, thin-walled, hyaline. Stipe trama regular, sarcodimitic. Clamp connections present in all tissues.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
8DA9E13CF8C65C8DA347650959A034E6.taxon	distribution	Habit and distribution. Caespitose on the rotten wood in broad-leaved forests. Currently only known from the type locality in China.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
FA946C68334457E08C00288F50B9D336.taxon	description	Figs 4, 5	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
FA946C68334457E08C00288F50B9D336.taxon	diagnosis	Diagnosis. Distinguished from other Gerronema species by the combination characters of the pastel grey pileus covered with pubescence when young, yellowish white to pale yellow lamellae are paler towards the margin, the absence of cheilocystidia, and the narrow cylindrical to utriform pleurocystidia.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
FA946C68334457E08C00288F50B9D336.taxon	etymology	Etymology. pubescence (Latin), referring to the species pileus usually covered with pubescence when young.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
FA946C68334457E08C00288F50B9D336.taxon	description	Description. Pileus 12 – 70 mm broad, hemispherical to plano-convex, depressed at center, grey (1 E 1), covered with pubescence when young, white to yellowish white (1 A 1 – 2) with age, grey to greyish brown (5 E 2 – 3, 6 C 1 – 2) at center, shallowly sulcate, surface dry, glabrous or pubescent, distinctly radially striped with grey to brownish orange (4 C 1 – 2, 6 C 2 – 3) lines, margin inflexed to reflexed. Lamellae subdecurrent, subdistant, ventricose, even, yellowish white to pale yellow (4 A 2 – 3), white (4 C 1) towards margin, with 1 – 5 lamellulae. Stipe 15 – 40 × 2 – 7 mm, central, cylindrical, hollow, white (1 A 1) to grey (1 C 1), covered with white granulose or fibrils. Odor and taste not recorded. Basidiospores (6) 6.5 – 8 × (3.5) 4 – 4.5 μm, L m = 7.13 ± 0.57 µm, W m = 4.08 ± 0.29 µm, Q = (1.5) 1.56 – 2, Qm = 1.75 ± 0.18, ellipsoid to oblong, smooth, thin-walled, hyaline, guttulate, inamyloid. Basidia 24.5 – 39 × 5 – 7.5 μm, clavate, thin-walled, hyaline, 2 - or 4 - spored, with sterigmata 2.5 – 5 µm long. Cheilocystidia absent. Pleurocystidia 40 – 104 × 8.5 – 12.5 µm, narrowly cylindrical to lageniform, thin-walled, hyaline. Lamellar trama regular to subregular, hyphae 3.5 – 26.5 μm wide, thin-walled, hyaline. Pileipellis a cutis, hyphae 3 – 25 μm wide, smooth, hyaline; pileocystidia 39 – 100 × 10 – 21 μm, oblong to narrowly clavate, apex sometimes rostrate, thin-walled, greyish brown pigmented in KOH. Pileus trama regular to subregular, sarcodimitic. Stipitipellis a cutis, hyphae 2.5 – 38.5 μm wide, smooth, thin-walled, hyaline; caulocystidia 38.5 – 84.5 × 8.5 – 19 μm, narrowly cylindrical to clavate, thin-walled, hyaline. Stipe trama regular, sarcodimitic. Clamp connections present in all tissues.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
FA946C68334457E08C00288F50B9D336.taxon	distribution	Habit and distribution. Scattered or caespitose on the rotten wood in broad-leaved forests. Currently only known from the type locality in China.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
DB0A81D23AFE53D08D19B4497941B821.taxon	description	Figs 6, 7	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
DB0A81D23AFE53D08D19B4497941B821.taxon	diagnosis	Diagnosis. Distinguished from other Gerronema species by the combination characters of medium-sized basidiomata, yellowish white to brown pileus, well-developed rhizomorphs at stipe base, the absence of cheilocystidia, and pleurocystidia.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
DB0A81D23AFE53D08D19B4497941B821.taxon	etymology	Etymology. rhizomorpha (Latin), referring to the species, usually has long and well-developed rhizomorphs at stipe base.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
DB0A81D23AFE53D08D19B4497941B821.taxon	description	Description. Basidiomata medium-sized. Pileus 35 – 95 mm broad, hemispherical to plano-convex, depressed at center, brown (5 E 5 – 6) when young, yellowish white (2 A 2 – 3) to brown (5 E 4 – 5) at maturity, usually brown (5 E 4 – 5) to dark brown (6 F 4 – 5) at center, surface dry, distinctly radially striped with brown (5 E 6 – 7,6 E 4 – 5) lines, margin inflexed. Lamellae subdecurrent, subdistant, ventricose, even, white to yellowish white (1 A 1 – 2), with 1 – 3 lamellulae. Stipe 40 – 110 × 4 – 10 mm, central to eccentric, cylindrical, hollow, white to yellowish white (1 A 1 – 2), sometimes yellowish grey to greyish yellow (2 C 2 – 3) at the base, covered with yellowish grey to greyish yellow (2 C 2 – 4) fibrils, base with developed and white (1 A 1) rhizomorphs. Odor and taste not recorded. Basidiospores 7 – 8.5 (9.5) × 5 – 6 (6.5) μm, L m = 7.80 ± 0.71 µm, W m = 5.53 ± 0.42 µm, Q = (1.23) 1.27 – 1.58 (1.6), Q m = 1.41 ± 0.13, broadly ellipsoid to ellipsoid, smooth, thin-walled, hyaline, guttulate, inamyloid. Basidia 25.5 – 32 × 7.5 – 11.5 μm, clavate, thin-walled, hyaline, 4 - spored, with sterigmata 2.8 – 6 µm long. Hymenial cystidia absent. Lamellar trama regular to subregular, hyphae 3 – 22 μm wide, thin-walled, hyaline. Pileipellis a cutis, hyphae 3 – 25 μm wide, thin-walled, light yellow in KOH; pileocystidia 25.5 – 63.5 × 6 – 14 μm, narrowly utriform to cylindrical, thin-walled, greyish brown to light brown pigmented in KOH. Pileus trama subregular, sarcodimitic. Stipitipellis a cutis, hyphae 1.5 – 11 μm wide, smooth, thin-walled, hyaline; caulocy stidia 12.5 – 33 × 3.5 – 8 μm, narrowly cylindrical to oblong, thin-walled, hyaline. Stipe trama regular, sarcodimitic. Clamp connections present in all tissues.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
DB0A81D23AFE53D08D19B4497941B821.taxon	distribution	Habit and distribution. Solitary or scattered, growing on the damp soil under broad-leaved forests. Currently known from China and Japan.	en	Zhang, Wei-Xin, Deng, Wang-Qiu, Chang, Chang-Qing, Zhou, Ping, Lin, Min, Zhang, Ming (2025): Three new species of Gerronema (Agaricales, Basidiomycota) from southern China. MycoKeys 114: 239-258, DOI: 10.3897/mycokeys.114.145299
