taxonID	type	description	language	source
4AA08C99586B5AA3805E4771CD3F9623.taxon	description	Fig. 8	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
4AA08C99586B5AA3805E4771CD3F9623.taxon	etymology	Etymology. The epithet pseudoweihaiensis (Latin) refers to the morphological resemblance and phylogenetic affinities with Ceratocystiopsis weihaiensis.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
4AA08C99586B5AA3805E4771CD3F9623.taxon	diagnosis	Diagnosis. Ceratocystiopsis pseudoweihaiensis is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the beta-tubulin (βT) and the elongation factor 1 - alpha (TEF 1 - α) regions (Suppl. materials 4, 5).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
4AA08C99586B5AA3805E4771CD3F9623.taxon	description	Description. Sexual morph not observed. Asexual morph observed mononematous. Mononematous morph: hyalorhinocladiella-like, conidiogenous cells arising directly from mycelium, (3.5 –) 6 – 52 (– 87) × (0.5 –) 1 – 1.5 (– 2) μm; conidia hyaline, smooth, unicellular short oblong, with rounded ends or clavate, (1.5 –) 2 – 3 (– 3.5) × (0.5 –) 1 – 1.5 (– 2) µm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
4AA08C99586B5AA3805E4771CD3F9623.taxon	description	Culture characteristics. The colonies are white in color on 2 % MEA, hyphae submerged in agar with aerial mycelium. The optimal temperature for growth is 25 – 30 ° C, reaching 63 mm diam in 15 days. Slow growth at 5 ° C and 35 ° C, growth diameter of 11 mm and 15 mm in 15 days.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
4AA08C99586B5AA3805E4771CD3F9623.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	description	Fig. 9	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	etymology	Etymology. The epithet pseudoyantaiensis (Latin) refers to the morphological resemblance and phylogenetic affinities with Ceratocystiopsis yantaiensis.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	diagnosis	Diagnosis. Ceratocystiopsis pseudoyantaiensis is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the beta-tubulin (βT) and the elongation factor 1 - alpha (TEF 1 - α) regions (Suppl. materials 4, 5).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	description	Description. Sexual morph not observed. Asexual morphs observed both synnematous and mononematous. Synnematous morph: pesotum-like, (47 –) 61 – 183 (– 283) μm long including conidiogenous apparatus, curving, faint yellow, the base dark yellow, aggregating into a mucilaginous spore drop, (36 –) 35 – 95 (– 165) μm in width. Mononematous morph: hyalorhinocladiella-like, conidiogenous cells arising directly from mycelium, (2.5 –) 4 – 24 (– 42) × (0.5 –) 1 – 1.5 (– 2) µm; conidia hyaline, smooth, unicellular, short oblong, measuring (1.5 –) 2 – 2.5 (– 3) × (0.5 –) 1 – 1.5 (– 2) μm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	description	Culture characteristics. The colonies are faint yellow in color on 2 % MEA, hyphae submerged in agar with aerial mycelium. The optimal temperature for growth is 30 ° C, reaching 79 mm diam in 15 days. Growth slower at 5 ° C, 14 mm diam in 15 days.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
36A7FFF5F80D547E9F8D0764AB136E16.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	description	Fig. 10	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	etymology	Etymology. The epithet jiuguanense (Latin) refers to the Jiu Guan village from where this taxon was first isolated.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	diagnosis	Diagnosis. Graphilbum jiuguanense is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the ITS, the elongation factor 1 - alpha (TEF 1 - α) and the calmodulin (CAL) regions (Suppl. materials 6 – 8).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	description	Description. Sexual morph not observed. Asexual morphs observed both synnematous and mononematous. Synnematous morph: pesotum-like, (109 –) 179 – 309 (– 358) μm long including conidiogenous apparatus, curving, the base dark yellow, (32 –) 42 – 80 (– 141) μm in width. Conidiogenous cells hyaline, (14 –) 18 – 44 (– 53) × (1 –) 2 – 2.5 (– 3) μm. Conidia hyaline, one-celled, cylindrical to obovoid, (3 –) 4 – 5.5 (– 6) × (1 –) 1.5 – 2 (– 3) μm. Mononematous morph: hyalorhinocladiella-like, conidiogenous cells arising directly from mycelium, (9 –) 24 – 57 (– 92) × (0.5 –) 1 – 1.5 (– 2) µm; conidia hyaline, single-celled, smooth, ellipsoidal to ovoid, (2.5 –) 3 – 5 (– 6) × (1 –) 1.5 – 2 (– 2.5) μm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	description	Culture characteristics. Colonies on 2 % MEA medium fast growing in the dark, hyphae submerged in agar with aerial mycelium, mycelial growing disorderly, white. The optimal temperature for growth is 30 ° C, reaching 86 mm diam in 7 days. Growth slower at 35 ° C, 7 mm diam in 7 days.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
40AC15947EB35448A795B2D1E7F5A7E6.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	description	Fig. 11	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	etymology	Etymology. The epithet ligniperdae (Latin) refers to the insect of Hylurgus ligniperda, the bark beetle vector of this species.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	diagnosis	Diagnosis. Leptographium ligniperdae is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the beta-tubulin (βT), the elongation factor 1 - alpha (TEF 1 - α), and the calmodulin regions (CAL) (Suppl. materials 9 – 11).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	description	Description. Sexual morph not observed. Asexual morphs observed both synnematous and mononematous. Synnematous morph: pesotum-like, (110 –) 200 – 310 (– 356) μm long including conidiogenous apparatus, the base dark brown, expanding branches at the apex, (22 –) 28 – 58 (– 78) μm in width. Conidiogenous cells hyaline, cylindrical, (7 –) 9 – 16 (– 19) × 1 – 2.5 μm. Conidia hyaline, one-celled, cylindrical to obovoid, (5 –) 6.5 – 8 (– 10) × (2.5 –) 3 – 3.5 (– 4) μm. Mononematous morph: leptographium-like, arising directly from mycelium; conidiophores, simple to strongly branched, hyaline, (41 –) 43 – 127 (– 226) µm long; conidiogenous cells (6 –) 8 – 18 (– 26) μm long; conidia hyaline, single-celled, smooth, oblong, (3.4 –) 4.8 – 7.6 (– 9.4) × (1.3 –) 1.7 – 2.5 (– 3) μm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	description	Culture characteristics. Colonies on 2 % MEA medium fast growing in the dark, reaching 88 mm in diam. in 7 days at 25 ° C, growth rate up to 15 mm / day at the fastest. Hyphae submerged in agar with aerial mycelium, dark-olivaceous to brown. Optimal growth temperature 25 – 30 ° C, no growth observed at 5 ° C and 35 ° C.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
7B55617785EA5C11A9278BD96DF738F4.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	description	Fig. 13	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	etymology	Etymology. The epithet dongshanensis (Latin) refers to the Dong Shan village from where this taxon was first isolated.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	diagnosis	Diagnosis. Masuyamyces dongshanensis is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the ITS and the beta-tubulin (βT) (Fig. 7, Suppl. material 12).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	description	Description. Sexual morph perithecial. Perithecia appeared after 35 days of cultivation on sterilized wooden chips or 30 days of cultivation on 2 % MEA, superficial or partly embedded, globose, black, the outer layer with hyphal ornamentation, (249 –) 367 – 606 (– 727) μm diam. Ascomatal necks black, straight or slightly curved, (410 –) 480 – 1038 (– 1849) µm long, (77 –) 107 – 161 (– 195) µm wide at base, (18 –) 22 – 41 (– 52) µm wide at the apex. In culture, necks sometimes 2 – 4 per ascoma. Asci and ascospores were not observed. Asexual morphs observed both synnematous and mononematous. Synnematous morph: pesotum-like, the base transparent or light yellow, aggregating into a transparent mucilaginous spore drop, (64 –) 96 – 218 (– 316) μm tall, including the conidiogenous apparatus, (40 –) 58 – 108 (– 149) μm wide. Mononematous morph: hyalorhinocladiella-like, conidiogenous cells arising directly from mycelium, (22 –) 23 – 165 (– 359) × (2 –) 2.5 – 3.5 (– 4) µm; conidia hyaline, single-celled, smooth, obovoid to bacilliform, (6 –) 7 – 9 (– 10) × (2 –) 2.5 – 3 (– 4) μm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	description	Culture characteristics. Colonies on 2 % MEA medium slow growing in the dark, reaching 72 mm in diam. in 15 days at 25 ° C, growth rate up to 4.5 mm / day at the fastest, part of the mycelium grows in the agar, pure white. Optimal growth temperature 30 ° C, slow growth at 5 – 10 ° C.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
64C276C575EE587D9C1E83EC036549F0.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	description	Fig. 12	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	etymology	Etymology. The epithet xishanensis (Latin) refers to the Xi Shan village from where this taxon was first isolated.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	diagnosis	Diagnosis. Masuyamyces xishanensis is phylogenetically distinct from all morphologically similar species, from which it can be readily distinguished using molecular sequence data for the ITS and the beta-tubulin (βT) (Fig. 7, Suppl. material 12).	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	description	Description. Sexual morph not observed. Asexual morphs observed both synnematous and mononematous. Synnematous morph: pesotum-like, the base transparent or light brown, (112 –) 158 – 296 (– 345) μm tall, including the conidiogenous apparatus, (35 –) 87 – 117 (– 172) μm wide. Conidiogenous cells hyaline, (5 –) 9 – 18 (– 22) × 1 – 1.5 μm. Conidia hyaline, one-celled, cylindrical, (2 –) 2.5 – 4 (– 5) × (1 –) 1.5 – 2 (– 2) μm. Mononematous morph: hyalorhinocladiella-like, conidiogenous cells arising directly from mycelium, (5 –) 7 – 39 (– 61) × (0.5 –) 1 – 1.5 (– 2) µm; conidia hyaline, single-celled, smooth, obovoid to oblong, (2 –) 2.5 – 3.5 (– 4) × (0.5 –) 1 – 1.5 (– 2) μm.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	description	Culture characteristics. Colonies on 2 % MEA medium slow growing in the dark, reaching 72 mm in diam. in 15 days at 25 ° C, growth rate up to 4.5 mm / day at the fastest, the colonies margin smooth, part of the mycelium grows in the agar, pure white. Optimal growth temperature 30 ° C, no growth observed at 5 ° C, slow growth at 10 ° C.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
E4B61B9032015557862F3DCA625A7128.taxon	distribution	Distribution. Currently known only from Shandong Province, China.	en	Xie, Dan, Chen, Huanwen, Jia, Niya, Niu, Fang, Wang, Xiaomei, Yu, Jia, Chi, Defu (2025): Ophiostomatoid fungi associated with Hylurgus ligniperda, including six new species from eastern China. IMA Fungus 16: e 169382, DOI: 10.3897/imafungus.16.169382
