taxonID	type	description	language	source
553EB31CCA8E51AAA457C8D7AFF775DC.taxon	description	Figs 4, 5	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
553EB31CCA8E51AAA457C8D7AFF775DC.taxon	etymology	Etymology. Armeniaca (Lat.): refers to the species having an apricot pore surface when dry.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
553EB31CCA8E51AAA457C8D7AFF775DC.taxon	diagnosis	Diagnosis. Differs from other Ceriporia species by resupinate basidiomata with a white pore surface when fresh, apricot when dry, round to angular pores of 5 – 7 per mm, subicular hyphae distinctly wider than tramal hyphae, lunate to allantoid basidiospores measuring 4 – 4.5 × 2 – 2.2 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
553EB31CCA8E51AAA457C8D7AFF775DC.taxon	description	Description. Basidiomata annual, resupinate, soft, without odor or taste when fresh, consistently soft when fresh and dry, up to 5 cm long, 3 cm wide, and 0.2 mm thick at the center. Pore surface white when fresh, becoming apricot upon drying; sterile margin indistinct to almost lacking; pores round to angular, 5 – 7 per mm; dissepiments thin, lacerate. Subiculum very thin to almost absent. Tubes concolorous with pore surface, soft when dry, up to 0.2 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, IKI -, CB +; tissues becoming orange-brown in KOH. Subicular hyphae slightly thick-walled with a wide lumen, abundantly covered with small to large hyaline crystals and oily substances, sometimes encrusted with fine crystals and oily substances, frequently branched at more or less a right angle, straight, slightly interwoven, 5 – 7 µm in diam. Tramal hyphae thin-walled with a wide lumen, abundantly covered with rhombic or irregular hyaline crystals and olive oily substances, sometimes encrusted with fine crystals and oily substances, frequently branched, straight to slightly flexuous, subparallel along the tubes, agglutinated, 3 – 4 µm in diam. Cystidia and cystidioles absent. Basidia clavate, with four sterigmata and a simple basal septum, 11 – 15.5 × 4 – 6 µm; basidioles clavate to pyriform, smaller than basidia. Basidiospores lunate to allantoid, hyaline, thin-walled, smooth, sometimes with one or two small guttules, IKI -, CB -, 4 – 4.5 (– 5) × 2 – 2.2 µm, L = 4.19 µm, W = 2.09 µm, Q = 2.01 (n = 30 / 1).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
5B7F27E7B9465990BDF34C447E456D36.taxon	description	Figs 6, 7	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
5B7F27E7B9465990BDF34C447E456D36.taxon	etymology	Etymology. Crassiparietata (Lat.): refers to the species having a pore surface with thick dissepiments.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
5B7F27E7B9465990BDF34C447E456D36.taxon	diagnosis	Diagnosis. Differs from other Ceriporia species by resupinate basidiomata with white to light yellow pore surface when fresh, cream to orange-yellow when dry, angular to irregular or sinuous pores of 4 – 5 per mm, distinctly thick dissepiments, subicular hyphae distinctly wider than tramal hyphae, lunate to allantoid basidiospores measuring 4 – 4.4 × 2.1 – 2.3 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
5B7F27E7B9465990BDF34C447E456D36.taxon	description	Description. Basidiomata annual, resupinate, soft, without odor or taste when fresh, consistently soft when fresh and dry, up to 3 cm long, 1 cm wide, and 0.2 mm thick at the center. Pore surface white to light yellow when fresh, becoming cream to orange-yellow upon drying; sterile margin indistinct to almost lacking; pores angular to irregular or sinuous, 4 – 5 per mm; dissepiments thick, entire. Subiculum very thin to almost absent. Tubes concolorous with pore surface, soft when dry, up to 0.2 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, IKI -, CB +; tissues unchanged in KOH. Subicular hyphae thin-walled with a wide lumen, abundantly covered with large, rhombic, hyaline crystals and some oily substances, encrusted with fine crystals, frequently branched at more or less a right angle, slightly flexuous, interwoven, 5 – 6 µm in diam. Tramal hyphae thin-walled with a wide lumen, abundantly covered with rhombic hyaline or pale orange crystals and oily substances, encrusted with fine crystals, frequently branched, straight to slightly flexuous, subparallel along the tubes, agglutinated, 3 – 4.5 µm in diam. Cystidia and cystidioles absent. Basidia mostly barrel-shaped to short clavate, with four sterigmata and a simple basal septum, 9 – 11 × 5 µm; basidioles of similar shape to basidia, but smaller. Basidiospores lunate to allantoid, hyaline, thin-walled, smooth, IKI -, CB -, (3.8 –) 4 – 4.4 (– 4.6) × (2 –) 2.1 – 2.3 (– 2.5) µm, L = 4.08 µm, W = 2.19 µm, Q = 1.85 – 1.89 (n = 60 / 2).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
7952FE5848F75B919AD6057FDC140054.taxon	type_taxon	Type species. Ceriporia viridans (Berk. & Broome) Donk [as ‘ Ceraporia’], Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 9: 171 (1933).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
7952FE5848F75B919AD6057FDC140054.taxon	description	Description. For a detailed description of this genus, see Wang et al. (2023).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
8A5B7E5E55ED55BA87EF5533D2ABC047.taxon	description	Figs 8, 9	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
8A5B7E5E55ED55BA87EF5533D2ABC047.taxon	etymology	Etymology. Wuyiana (Lat.): refers to the species being found in Wuyi County, Zhengjiang Prov., East China.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
8A5B7E5E55ED55BA87EF5533D2ABC047.taxon	diagnosis	Diagnosis. Differs from other Ceriporia species by resupinate basidiomata with a white to cream pore surface when fresh, clay pink to pale lavender when dry, round to angular pores of 5 – 6 per mm, subicular hyphae relatively wider than tramal hyphae, allantoid to lunate basidiospores measuring 4.3 – 5 × 1.7 – 2 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
8A5B7E5E55ED55BA87EF5533D2ABC047.taxon	description	Description. Basidiomata annual, resupinate, soft, without odor or taste when fresh, soft when dry, up to 6 cm long, 2.5 cm wide, and 0.2 mm thick at the center. Pore surface white to cream when fresh, becoming clay pink to pale lavender upon drying; sterile margin indistinct to almost lacking; pores round to angular, 5 – 6 per mm; dissepiments thin, lacerate. Subiculum very thin to almost absent. Tubes concolorous with pore surface, soft when dry, up to 0.2 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, IKI -, CB +; tissues becoming orange-brown in KOH. Subicular hyphae thin- to slightly thick-walled with a wide lumen, abundantly covered with small, rhombic, hyaline crystals and oily substances, sometimes encrusted with fine crystals, frequently branched at more or less a right angle, straight, slightly interwoven, 4 – 5 µm in diam. Tramal hyphae thin-walled with a wide lumen, abundantly covered with rhombic or irregular pale orange crystals and oily substances, sometimes encrusted with fine crystals, frequently branched, straight to slightly flexuous, subparallel along the tubes, agglutinated, 3 – 4 µm in diam. Cystidia and cystidioles absent. Basidia barrel-shaped to somewhat pyriform, with four sterigmata and a simple basal septum, 9 – 12.5 × 4 – 5 µm; basidioles of similar shape to basidia, but smaller. Basidiospores allantoid to lunate, hyaline, thin-walled, smooth, IKI -, CB -, (4.1 –) 4.3 – 5 × (1.5 –) 1.7 – 2 µm, L = 4.58 µm, W = 1.83 µm, Q = 2.51 (n = 30 / 1).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
2ABBF70413965AD3A10ADF89F3435A5E.taxon	description	Figs 12, 13	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
2ABBF70413965AD3A10ADF89F3435A5E.taxon	etymology	Etymology. Albomarginatus (Lat.): refers to the species having a white pileal margin when fresh.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
2ABBF70413965AD3A10ADF89F3435A5E.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by effused-reflexed to pileate basidiomata with buff yellow to cinnamon buff and concentrically zonate-sulcate pileal surface when dry, thick-walled and apically encrusted hyphoid cystidia, subglobose basidiospores measuring 5.2 – 6.2 × 4.6 – 5.7 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
2ABBF70413965AD3A10ADF89F3435A5E.taxon	description	Description. Basidiomata annual, effused-reflexed to pileate, imbricate, soft corky, and without odor or taste when fresh, becoming hard corky upon drying, up to 3 cm long and 2.5 cm wide when resupinate; pileus flabelliform, projecting up to 2 cm, 3.5 cm wide, and 1.6 mm thick at the base. Pileal surface orange-yellow to yellow-brown when fresh, becoming buff yellow to cinnamon buff, velutinate, concentrically zonate, and radially sulcate upon drying; margin sharp, thinning out, white when fresh, buff yellow and slightly curved when dry. Pore surface cream to pinkish buff when fresh, unchanged after bruising, clay buff to grayish brown when dry; sterile margin distinct, thinning out, white when fresh, cream to buff when dry; pores angular, 7 – 8 per mm; dissepiments thin, entire to slightly lacerate. Subiculum buff yellow, soft corky, up to 0.6 mm thick. Tubes concolorous with pore surface, corky when dry, up to 1 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, smooth, IKI -, CB +; tissues unchanged in KOH. Contextual hyphae distinctly thick-walled to almost solid, unbranched, straight, loosely interwoven, 5 – 9 µm in diam. Tramal hyphae distinctly thick-walled with a median lumen, unbranched, slightly flexuous, subparallel along the tubes, agglutinated, 4 – 8 µm in diam. Hyphoid cystidia present, arising from tramal hyphae and completely embedded in trama, not projecting from the hymenium and sometimes projecting from the dissepiment edge, thick-walled with swollen tips, apically encrusted, 9 – 12 µm in diam. at the apex. Hymenial cystidia absent; cystidioles fusoid to mamillate, thin-walled, smooth, 14 – 17 × 6 – 6.5 µm; basidia barrel-shaped to somewhat pyriform, with four sterigmata and a simple basal septum, 17 – 20 × 8 – 9 µm; basidioles of similar shape to basidia, but smaller. Basidiospores subglobose, hyaline, thin-walled, smooth, with one medium or small guttule, IKI -, CB -, (5 –) 5.2 – 6.2 (– 6.5) × (4.5 –) 4.6 – 5.7 (– 6) µm, L = 5.79 µm, W = 5.19 µm, Q = 1.11 – 1.12 (n = 60 / 2).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
3A6D288443E45DACA4704106864D4D58.taxon	description	Figs 14, 15	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
3A6D288443E45DACA4704106864D4D58.taxon	etymology	Etymology. Crystallinus (Lat.): refers to the species having hyphoid cystidia with crystals.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
3A6D288443E45DACA4704106864D4D58.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by resupinate basidiomata with buff yellow, salmon to clay pink pore surface when dry, angular pores of 6 – 8 per mm, thin-walled and apically encrusted hyphae at the dissepiment edge, broadly ellipsoid to ovoid and slightly thick-walled basidiospores measuring 4.3 – 5 × 4 – 4.5 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
3A6D288443E45DACA4704106864D4D58.taxon	description	Description. Basidiomata annual, resupinate, soft to ceraceous, and without odor or taste when fresh, becoming brittle upon drying, up to 10 cm long, 6 cm wide, and 3.2 mm thick at the center. Pore surface buff yellow, salmon to clay pink when dry; sterile margin almost absent; pores angular, 6 – 8 per mm; dissepiments thin, entire to slightly lacerate. Subiculum very thin to almost absent, up to 0.2 mm thick. Tubes concolorous with pore surface, brittle when dry, up to 3 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline to yellowish brown, smooth, IKI -, CB +; tissues unchanged in KOH. Subicular hyphae slightly thick-walled with a wide lumen, unbranched, moderately simple septate, slightly flexuous, loosely interwoven, agglutinated, 4 – 7 µm in diam. Tramal hyphae slightly thick- to thick-walled with a wide lumen, occasionally branched, frequently simple septate, slightly flexuous, subparallel along the tubes, agglutinated, 3 – 5 µm in diam.; some thin-walled hyphae at the dissepiment edge bearing crystals at the tips and resembling hyphoid cystidia. Hymenial cystidia absent; cystidioles fusoid, thin-walled, smooth, 12 – 18 × 4 – 5 µm; basidia barrel-shaped, with four sterigmata and a simple basal septum, 11 – 12 × 5.5 – 6 µm; basidioles of similar shape to basidia, but smaller. Basidiospores broadly ellipsoid to ovoid, hyaline, slightly thick-walled, smooth, sometimes with one medium guttule, IKI -, weakly CB +, (4.2 –) 4.3 – 5 × 4 – 4.5 µm, L = 4.75 µm, W = 4.15 µm, Q = 1.13 – 1.15 (n = 60 / 2).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
33FB821205B9540E8804EA882774676E.taxon	description	Figs 16, 17	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
33FB821205B9540E8804EA882774676E.taxon	etymology	Etymology. Emarginatus (Lat.): refers to the basidiomata of species lacking a sterile margin.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
33FB821205B9540E8804EA882774676E.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by resupinate basidiomata with a white pore surface when fresh, round to angular pores of 6 – 7 per mm, thick-walled and apically encrusted hyphoid cystidia, thin-walled and smooth hymenial cystidia, subglobose to globose basidiospores measuring 4.8 – 5.2 × 4.5 – 5.2 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
33FB821205B9540E8804EA882774676E.taxon	description	Description. Basidiomata annual, resupinate, soft to ceraceous, and without odor or taste when fresh, becoming fragile upon drying, up to 8 cm long, 5 cm wide, and 0.6 mm thick at the center. Pore surface white when fresh, unchanged after bruising, pinkish buff to clay buff when dry; sterile margin absent; pores round to angular, 6 – 7 per mm; dissepiments thin, slightly lacerate. Subiculum very thin to almost absent. Tubes concolorous with pore surface, fragile when dry, up to 0.6 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline to pale yellowish, smooth, IKI -, moderately CB +; tissues unchanged in KOH. Tramal hyphae slightly thick-walled with a wide lumen, occasionally branched, frequently simple septate, slightly flexuous, subparallel along the tubes, agglutinated, 4 – 5 µm in diam. Hyphoid cystidia present, arising from tramal hyphae and completely embedded in trama, not projecting from the hymenium, sometimes projecting from the dissepiment edge, thick-walled with swollen tips, apically encrusted, 6 – 12 µm in diam. at the apex; hymenial cystidia present, fusoid, thin-walled, smooth, 20 – 25 × 4.5 – 5.5 µm; cystidioles fusoid, thin-walled, smooth, 13 – 14 × 5 – 6 µm; basidia barrel-shaped to capitate, with four sterigmata and a simple basal septum, 15 – 17 × 7 – 8 µm; basidioles mostly pyriform, smaller. Crystals present among the hymenium and tube trama. Basidiospores subglobose to globose, hyaline, thin-walled, smooth, sometimes with one small or large guttule, IKI -, weakly CB +, (4.5 –) 4.8 – 5.2 (– 5.5) × 4.5 – 5.2 (– 5.5) µm, L = 5.11 µm, W = 4.90 µm, Q = 1.03 – 1.05 (n = 90 / 3).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
F940BC4AFEA25E839DF475966749C72E.taxon	description	Figs 18, 19	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
F940BC4AFEA25E839DF475966749C72E.taxon	etymology	Etymology. Malayanus (Lat.): refers to the species being found in Malaysia.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
F940BC4AFEA25E839DF475966749C72E.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by resupinate nodulose basidiomata with a honey buff to grayish brown pore surface when dry, angular and sometimes elongated pores of 7 – 8 per mm, thick-walled and apically encrusted hyphoid cystidia, subglobose basidiospores measuring 5 – 5.5 × 4.5 – 5 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
F940BC4AFEA25E839DF475966749C72E.taxon	description	Description. Basidiomata annual, resupinate, nodulose, soft corky, and without odor or taste when fresh, becoming hard corky upon drying, up to 15 cm long, 6 cm wide, and 0.8 mm thick at the center. Pore surface white to cream when fresh, unchanged after bruising, honey buff to grayish brown when dry; sterile margin thinning out, grayish brown when dry; pores angular, sometimes elongated, 7 – 8 per mm; dissepiments thin, slightly lacerate. Subiculum pinkish buff, corky, up to 0.3 mm thick. Tubes concolorous with pore surface, hard corky when dry, up to 0.5 mm long. Hyphal system monomitic; generative hyphae simple septate, smooth, IKI -, CB +; tissues becoming reddish brown in KOH. Subicular hyphae distinctly thick-walled with a wide lumen, rarely branched and simple septate, more or less flexuous, interwoven, 5 – 8 µm in diam. Tramal hyphae slightly thick-walled with a wide lumen, occasionally branched, moderately simple septate, straight, subparallel along the tubes, agglutinated, 3.5 – 4.8 µm in diam. Hyphoid cystidia present, arising from tramal hyphae and completely embedded in trama, not projecting from the hymenium or dissepiment edge, thick-walled with swollen tips, apically encrusted, 7 – 9 µm in diam. at the apex. Hymenial cystidia absent; cystidioles fusoid, thin-walled, smooth, 14 – 17 × 4 – 5 µm; basidia barrel-shaped to capitate, with four sterigmata and a simple basal septum, 14 – 17 × 7 – 8 µm; basidioles of similar shape to basidia, but smaller. Basidiospores subglobose, hyaline, thin-walled, smooth, with one medium or small guttule, IKI -, CB -, 5 – 5.5 (– 6) × (4.2 –) 4.5 – 5 (– 5.5) µm, L = 5.20 µm, W = 4.68 µm, Q = 1.11 (n = 30 / 1).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
32D6349281C15D4AA7AE1EA7E8B9DA73.taxon	description	Figs 20, 21	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
32D6349281C15D4AA7AE1EA7E8B9DA73.taxon	etymology	Etymology. Niveomarginatus (Lat.): refers to the species having a white sterile margin when fresh.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
32D6349281C15D4AA7AE1EA7E8B9DA73.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by resupinate basidiomata with orange-yellow to peach when fresh, white sterile margin when fresh, angular to irregular pores of 6 – 8 per mm, thick-walled and apically encrusted hyphoid cystidia, broadly ellipsoid basidiospores measuring 4.2 – 5.2 × 4 – 4.6 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
32D6349281C15D4AA7AE1EA7E8B9DA73.taxon	description	Description. Basidiomata annual, resupinate, soft corky, and without odor or taste when fresh, becoming hard corky to somewhat rigid upon drying, up to 15 cm long, 6 cm wide, and 4 mm thick at center. Pore surface brownish vinaceous, orange-yellow to peach when fresh, becoming reddish brown after bruising, pinkish buff, vinaceous gray, dark brown to black when dry; sterile margin distinct, thinning out, white when fresh, cream to olivaceous buff when dry, up to 2 mm wide; pores angular to irregular, 6 – 8 per mm; dissepiments thin, slightly lacerate. Subiculum cream, corky, up to 1 mm thick. Tubes paler than pore surface, cinnamon buff, hard corky when dry, up to 3 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, smooth, IKI -, CB +; tissues becoming dark brown in KOH. Subicular hyphae distinctly thick-walled with a wide lumen, rarely branched and simple septate, more or less flexuous, interwoven, 4 – 8 µm in diam. Tramal hyphae distinctly thick-walled with a wide lumen, occasionally branched, moderately simple septate, slightly flexuous, subparallel along the tubes, agglutinated, 4 – 6 µm in diam. Hyphoid cystidia present, arising from tramal hyphae and completely embedded in trama, not projecting from the hymenium, sometimes projecting from the dissepiment edge, thick-walled with swollen tips, apically encrusted, 10 – 15 µm in diam. at the apex. Hymenial cystidia absent; cystidioles fusoid, thin-walled, smooth, 13 – 14 × 4 – 5 µm; basidia barrel-shaped to capitate, with four sterigmata and a simple basal septum, 14 – 17 × 7 – 9 µm; basidioles of similar shape to basidia, but smaller. Basidiospores broadly ellipsoid, hyaline, thin-walled, smooth, with one medium or small guttule, IKI -, weakly CB +, (4 –) 4.2 – 5.2 (– 5.5) × (3.8 –) 4 – 4.6 (– 4.8) µm, L = 4.78 µm, W = 4.16 µm, Q = 1.13 – 1.17 (n = 90 / 3).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
C84EB0FB54ED53C8B783DF262DA31764.taxon	description	Figs 22, 23	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
C84EB0FB54ED53C8B783DF262DA31764.taxon	etymology	Etymology. Noncontusus (Lat.): refers to the species having pores without color changing when bruised.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
C84EB0FB54ED53C8B783DF262DA31764.taxon	diagnosis	Diagnosis. Differs from other Meripilus species by resupinate basidiomata with a white pore surface when fresh, the absence of sterile margin, angular pores of 5 – 6 per mm, slightly thick-walled and apically encrusted hyphoid cystidia at the dissepiment edge, broadly ellipsoid to subglobose basidiospores measuring 5 – 5.5 × 4.2 – 4.7 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
C84EB0FB54ED53C8B783DF262DA31764.taxon	description	Description. Basidiomata annual, resupinate, soft to ceraceous, and without odor or taste when fresh, becoming fragile upon drying, usually in small patches up to 2 cm long, 1 cm wide, and 0.7 mm thick at the center. Pore surface white to pinkish buff when fresh, unchanged after bruising, pinkish buff to buff yellow when dry; sterile margin absent; pores angular, 5 – 6 per mm; dissepiments thin, slightly lacerate. Subiculum pinkish buff, fragile, up to 0.2 mm thick. Tubes concolorous with pore surface, fragile when dry, up to 0.5 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, smooth, IKI -, CB +; tissues unchanged in KOH. Subicular hyphae slightly thick-walled with a wide lumen, rarely branched, frequently simple septate, slightly flexuous, loosely interwoven, agglutinated, 5 – 8 µm in diam. Tramal hyphae slightly thick-walled with a wide lumen, occasionally branched, slightly flexuous, subparallel along the tubes, agglutinated, 3 – 6 µm in diam.; some slightly thick-walled hyphae at the dissepiment edge bearing crystals at tips and resembling hyphoid cystidia. Hymenial cystidia absent; cystidioles fusoid, thin-walled, smooth, 11 – 12 × 5.5 – 6 µm; basidia barrel-shaped to capitate, with four sterigmata and a simple basal septum, 12 – 14 × 6.5 – 8 µm; basidioles of similar shape to basidia, but smaller. Basidiospores broadly ellipsoid to subglobose, hyaline, thin-walled, smooth, with one medium guttule, IKI -, CB -, (4.8 –) 5 – 5.5 (– 5.6) × (4 –) 4.2 – 4.7 (– 4.8) µm, L = 5.13 µm, W = 4.45 µm, Q = 1.15 (n = 30 / 1).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
D908007282885FE2B009D87ACB9619E5.taxon	type_taxon	Type species. Meripilus giganteus (Pers.) P. Karst., Bidr. Känn. Finl. Nat. Folk 37: 33 (1882). For a detailed description of this genus, see Wang et al. (2024) and Westphalen et al. (2025).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9453B8E62900581AB5381ACC9797869D.taxon	type_taxon	Type species. Meruliopsis taxicola (Pers.) Bondartsev, in Parmasto, Eesti NSV Tead. Akad. Toim., Biol. seer 8 (4): 274 (1959).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9453B8E62900581AB5381ACC9797869D.taxon	description	Description. For a detailed description of this genus, see Wang et al. (2023).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9D57F82EFF1C5BAEAFD6C31C7A93981A.taxon	description	Figs 10, 11	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9D57F82EFF1C5BAEAFD6C31C7A93981A.taxon	etymology	Etymology. Rhizomorpha (Lat.): refers to the species having rose-colored rhizomorphs when fresh.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9D57F82EFF1C5BAEAFD6C31C7A93981A.taxon	diagnosis	Diagnosis. Differs from other Meruliopsis species by resupinate basidiomata with a white pore surface when fresh, rose-colored rhizomorphs, round to angular pores of 2 – 4 per mm, subicular hyphae distinctly wider than tramal hyphae, smooth hymenial cystidia, ellipsoid to broadly ellipsoid basidiospores measuring 3.8 – 4.2 × 2.3 – 2.7 µm.	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
9D57F82EFF1C5BAEAFD6C31C7A93981A.taxon	description	Description. Basidiomata annual, resupinate, soft, without odor or taste when fresh, soft when dry, up to 15 cm long, 6 cm wide, and 0.2 mm thick at the center. Pore surface white when fresh, becoming white to cream upon drying; sterile margin white when fresh and dry, up to 2 mm wide, and with rose-colored rhizomorphs when fresh; pores round to angular, 2 – 4 per mm; dissepiments thin to slightly thick, entire to slightly lacerate. Subiculum white, soft when dry, up to 0.1 mm thick. Tubes concolorous with pore surface, soft when dry, up to 0.1 mm long. Hyphal system monomitic; generative hyphae simple septate, hyaline, IKI -, weakly CB +; tissues unchanged in KOH. Subicular hyphae slightly thick-walled with a wide lumen, sometimes encrusted with fine crystals, frequently branched at more or less a right angle, straight to more or less flexuous, interwoven, 4 – 7 µm in diam. Tramal hyphae thin-walled with a wide lumen, frequently branched, straight to slightly flexuous, subparallel along the tubes, agglutinated, 2.5 – 3 µm in diam. Hymenial cystidia present, clavate, thin-walled, smooth, 30 – 46 × 5 – 5.5 µm; cystidioles absent. Basidia mostly clavate, sometimes constricted at middle, with four sterigmata and a simple basal septum, 16 – 27 × 5 – 6 µm; basidioles of similar shape to basidia, but smaller. Large stellate crystal agglomerations present among the tube trama. Basidiospores ellipsoid to broadly ellipsoid, hyaline, thin-walled, smooth, IKI -, CB -, (3.6 –) 3.8 – 4.2 (– 4.6) × (2 –) 2.3 – 2.7 (– 2.9) µm, L = 3.95 µm, W = 2.53 µm, Q = 1.55 – 1.59 (n = 90 / 3).	en	Wang, Chao-Ge, Wu, Ying-Da, Zhang, Xin, Dai, Yu-Cheng, Li, Zhen-Hao, Yuan, Yuan (2025): Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species. IMA Fungus 16: e 161336, DOI: 10.3897/imafungus.16.161336
