taxonID	type	description	language	source
A3E60E9CC47F5A368CCCBB1B4DF86429.taxon	description	Figs 5, 6, 7	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A3E60E9CC47F5A368CCCBB1B4DF86429.taxon	diagnosis	Diagnosis. Differs from other Crystallicutis species by its slightly pink to orange basidiomata when dry, a monomitic hyphal system with simple septa, and narrowly ellipsoid basidiospores measuring 3.7 – 4.4 × 1.9 – 2.8 µm.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A3E60E9CC47F5A368CCCBB1B4DF86429.taxon	etymology	Etymology. Albomarginata (Latin or Greek origin): refers to the white margin of the basidiomata.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A3E60E9CC47F5A368CCCBB1B4DF86429.taxon	description	Description. Basidiomata. Annual, resupinate, adnate, membranaceous, without odor or taste when fresh, up to 10 cm long, 2.5 cm wide, and 200 μm thick at center. Hymenial surface smooth, cream to pale pink when fresh, turning to slightly pink to orange upon drying. Sterile margin narrow, cream to pale pink, up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple septa, colorless, thin- to slightly thick-walled, rarely branched, interwoven, 2.1 – 3 µm in diameter, IKI –, CB –; tissues unchanged in KOH. Hymenium. Cystidia fusiform, colorless, thin-walled, smooth, 12.5 – 27 × 3.5 – 6 µm. Basidia clavate, thin-walled, smooth, slightly flexuous, with four sterigmata and a simple septum at the base, 12.1 – 19.4 × 3.8 – 6 µm; basidioles in shape similar to basidia, but slightly smaller; subhymenial hyphae covered with smaller irregularly shaped colorless crystals. Basidiospores. Basidiospores narrowly ellipsoid, colorless, thin-walled, smooth, with 1 - 2 guttules, IKI –, CB –, (3.5 –) 3.7 – 4.4 (– 4.6) × (1.6 –) 1.9 – 2.8 µm, L = 4.06 µm, W = 2.33 µm, Q = 1.58 – 1.95 (n = 60 / 2).	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A8A8A946CA115FE4BD897965FB082FF4.taxon	description	Figs 8, 9, 10	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A8A8A946CA115FE4BD897965FB082FF4.taxon	diagnosis	Diagnosis. Differs from other Efibula species by its hard, membranous, slightly yellow to yellow basidiomata; a monomitic hyphal system with simple-septa generative hyphae; and ellipsoid basidiospores measuring 3.8 – 6 × 2.6 – 3.7 µm.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A8A8A946CA115FE4BD897965FB082FF4.taxon	etymology	Etymology. Glossophora (Latin or Greek origin): refers to the smooth hymenial surface of the type specimen.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
A8A8A946CA115FE4BD897965FB082FF4.taxon	description	Description. Basidiomata. Annual, resupinate, closely adnate, hard membranaceous, without odor or taste when fresh, up to 9 cm long, 2.5 cm wide, and 300 μm thick at center. Hymenophore smooth, buff to slightly yellow when fresh, slightly yellow to yellow upon drying. Sterile margin narrow, cream to slightly yellow, up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple septa, colorless, thin- to slightly thick-walled, smooth, rarely branched, interwoven, 3 – 3.5 µm in diameter, IKI –, CB –; tissues unchanged in KOH. Hymenium. Cystidia and cystidioles absent. Basidia long clavate, slightly flexuous, with four sterigmata and a simple septum at the base, 21.5 – 26.7 × 5.7 – 7.4 µm; basidioles numerous, in shape similar to basidia but smaller. Basidiospores. Basidiospores ellipsoid, colorless, thin-walled, smooth, IKI –, CB –, (3.6 –) 3.8 – 6 (– 7.5) × (2 –) 2.6 – 3.7 (– 4.3) µm, L = 5.3 µm, W = 3.3 µm, Q = 1.63 (n = 30 / 1).	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
828A0354AC555182AA40FD0E8B593EA3.taxon	description	Figs 11, 12, 13	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
828A0354AC555182AA40FD0E8B593EA3.taxon	diagnosis	Diagnosis. Differs from other Efibula species by its membranaceous, slightly gray to pale brown basidiomata, a monomitic hyphal system with simple-septate generative hyphae, and ellipsoid basidiospores measuring 4.3 – 6.2 × 2.2 – 3.3 µm.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
828A0354AC555182AA40FD0E8B593EA3.taxon	etymology	Etymology. Punctata (Latin or Greek origin): refers to the species having cushion-shaped hymenial surface of the type specimens.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
828A0354AC555182AA40FD0E8B593EA3.taxon	description	Description. Basidiomata. Annual, resupinate, closely adnate, thin membranaceous, without odor or taste when fresh, up to 10 cm long, 2 cm wide, and 200 μm thick at center. Hymenophore smooth, cream to slightly brown when fresh, slightly gray to pale brown upon drying. Sterile margin narrow, cream to slightly brown, up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple septa, colorless, thin-walled, smooth, branched, interwoven, 1.5 – 3.5 µm in diameter; IKI –, CB –; tissues unchanged in KOH. Hymenium. Cystidia absent, cystidoles mostly subfusiform, colorless, thin-walled, smooth, 9.8 – 22 × 2.8 – 5.7 µm. Basidia subcylindrical to subclavate, slightly flexuous, with a basal simple septum and four sterigmata, 11.8 – 19.4 × 3.7 – 5.9 µm; basidioles numerous, in shape similar to basidia but smaller. Basidiospores. Basidiospores ellipsoid, colorless, thin-walled, IKI –, CB –, (3.6 –) 4.3 – 6.2 (– 6.7) × (1.8 –) 2.2 – 3.3 (– 3.9) µm, L = 5.17 µm, W = 2.74 µm, Q = 1.81 – 1.92 (n = 240 / 8).	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
057CCA1527975C3C925CAAC27FB19EB4.taxon	description	Figs 14, 15, 16	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
057CCA1527975C3C925CAAC27FB19EB4.taxon	diagnosis	Diagnosis. Differs from other Scopuloides species by its coriaceous, pale cream to buff basidiomata, a monomitic hyphal system with simple-septate generative hyphae, and ellipsoid basidiospores measuring 2.8 – 3.5 × 1.4 – 2 µm.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
057CCA1527975C3C925CAAC27FB19EB4.taxon	etymology	Etymology. Farinacea (Latin or Greek origin): refers to the farinaceous hymenial surface of the type specimens.	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
057CCA1527975C3C925CAAC27FB19EB4.taxon	description	Description. Basidiomata. Annual, resupinate, closely adnate, coriaceous, without odor or taste when fresh, up to 20 cm long, 3 cm wide, and 400 μm thick at center. Hymenophore grandinoid, white to cream when fresh, pale cream to buff upon drying. Sterile margin white to pale cream, up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple septa, colorless, thin- to slightly thick-walled, smooth, branched, more or less parallel with substrate, 1.7 – 5.5 µm in diameter, IKI –, CB –; tissues unchanged in KOH. Hymenium. Lamprocystidia abundant, conical or subulate, colorless, simple-septate at base, heavily encrusted, originating from trama or subiculum, immersed or projecting, 21.2 – 39.5 × 6 – 13 µm. Basidia subcylindrical, slightly flexuous, with a basal simple septum and four sterigmata, 4.6 – 8 × 1.8 – 2.7 µm; basidioles numerous, in shape similar to basidia but slightly smaller. Basidiospores. Basidiospores ellipsoid, colorless, thin-walled, smooth, IKI –, CB –, (2.6 –) 2.8 – 3.5 (– 3.7) × (1.2 –) 1.4 – 2 µm, L = 3.08 µm, W = 1.65 µm, Q = 1.79 – 1.92 (n = 90 / 3).	en	Gu, Zirui, Zhou, Chunqin, Zhang, Jianling, Liu, Yu, Deng, Qiaohua, Yang, Rongcong, Yang, Shunqiang, Zhao, Changlin (2025): Taxonomy and phylogeny of Irpicaceae and Meruliaceae (Polyporales, Basidiomycota) with descriptions of four new species from southwestern China. MycoKeys 119: 197-234, DOI: 10.3897/mycokeys.119.157018
