taxonID	type	description	language	source
C7A0504FD6C15C0684C0347B53F54518.taxon	description	Fig. 3	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C7A0504FD6C15C0684C0347B53F54518.taxon	etymology	Etymology. The name refers to Guizhou Province, where the fungus was collected.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C7A0504FD6C15C0684C0347B53F54518.taxon	description	Description. Saprobic on dead wood culms. Sexual morph: undetermined. Asexual morph: On the natural substrate: Pycnidia 81 – 137 × 65 – 1198 µm (x ̄ = 108.5 × 81.9 µm, n = 10), ellipsoidal to nearly circular, inlaid on the surface of the substrate with a black ring at the edge, transparent in the center, and smooth in surface texture. On PDA: Conidiophores reduced to conidiogenous cells. Conidiogenous cell 9 – 35 × 1 – 6 µm (x ̄ = 20 × 3.8 µm, n = 10), enteroblastic, indeterminate, discrete, unbranched, clavate or ampulliform to lageniform, hyaline, aseptate, smooth-walled. Conidia (2.9 –) 3.4 – 3.5 (– 4) × (2 –) 2.4 – 2.5 (– 2.6) µm (x ̄ = 3.5 × 2.5 µm, n = 50), oblong to ellipsoid, with rounded to obtuse ends, hyaline, aseptate, smooth-walled.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C7A0504FD6C15C0684C0347B53F54518.taxon	description	Culture characteristics. Under dark conditions at 25 ° C, the colony diameter can reach 80 mm within seven days on PDA medium. Center of the colony is light gray, accompanied by a white ring. Hyphae at the edge are sparse, slightly irregular, and lace-like, and several vertical stripes spread out at the center. Reverse side is black to light red, and the edge is yellowish.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
1323726E3A845B0E93CE4C6D42253D16.taxon	description	Fig. 4	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
1323726E3A845B0E93CE4C6D42253D16.taxon	etymology	Etymology. The name refers to Guizhou Province, where the fungus was collected.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
1323726E3A845B0E93CE4C6D42253D16.taxon	description	Description. Saprobic on dead bamboo culms. Sexual morph: undetermined. Asexual morph: Pycnidia 998 – 3121 × 143 – 853 µm (x ̄ = 1749.6 × 430.9 µm, n = 10), stromatic on the substrate, develops above the epidermis and becomes raised when mature, ellipsoidal to irregular in shape, with a rough surface ranging in color from reddish-brown to black, composed of numerous dense, glossy black stromata globules stacked layer upon layer. Stroma ranges in color from light brown to black, being transparent and shaped like a hemisphere to a near-perfect sphere, with uniform size, smooth surface, glossy, with half embedded in the natural substrate and the other half exposed, a circular aperture is present at the top. On PDA medium: Pycnidia superficial, float above the stromata, shaped like hemispheres or spheres, appearing as viscous, mucoid masses with a flat base, colour ranging from dark brown to black, lacking a pycnidial wall, release brownish-yellow conidia mass. Conidiophores reduced to conidiogenous cells. Conidiogenous cell 5 – 8 × 1 – 2 µm (x ̄ = 6.2 × 1.7 µm, n = 10), enteroblastic, indeterminate, discrete, unbranched, clavate or ampulliform to lageniform, transparent to light brown, aseptate, smooth-walled. Conidia (1.7 –) 2.2 – 2.3 (– 2.6) × (1.3 –) 1.5 – 1.6 (– 1.9) µm (x ̄ = 2.3 × 1.6 µm, n = 50), oblong to ellipsoid, with rounded to obtuse ends, light brown to transparent, smooth-walled.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
1323726E3A845B0E93CE4C6D42253D16.taxon	description	Culture characteristics. Under dark conditions at 25 ° C, the colony reaches a diameter of 90 mm within seven days on PDA medium. Colony is dense, exhibiting a rough surface and a regular shape with a fluffy margin. Center is velvety, characterized by a grayish-white coloration surrounded by gray margins. Reverse side is grayish-black, featuring a small grayish-white circle in the middle, which produces a black pigment.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
D8BEE9FFE66A5B49A48E5E627FFB99A0.taxon	description	Fig. 5	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
D8BEE9FFE66A5B49A48E5E627FFB99A0.taxon	etymology	Etymology. The name refers to Guizhou Province, where the fungus was collected.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
D8BEE9FFE66A5B49A48E5E627FFB99A0.taxon	description	Description. Saprobic on dead wood culms. Sexual morph: undetermined. Asexual morph: Stromata grow above the epidermis and become hemispherically raised when mature. Stromata 61 – 587 µm high, 67 – 489 µm wide, fattened at the base, those stromata distributed singly, in groups, or scattered, and their color ranges from dark brown to black. On PDA medium, grows on epidermis and bulges when matures. Conidiophores degenerated into sporogenous cells. Conidiogenous cells 8 – 17 × 1 – 5 µm (x ̄ = 17.9 × 2.6 µm, n = 10) wide, phialidic, ampulliform, or lageniform, hyaline, smooth-walled, and have two types of spore-producing structures: one type, long, thin tentacles that extend irregularly outward, other type, short and wide, and twisted together to form knots, and the ends of both rounded. Conidia (1.7 –) 2.7 – 2.8 (– 3) × (0.7 –) 0.9 – 1 (– 1.5) µm (x ̄ = 2.5 × 1 µm, n = 50) oblong, hyaline, aseptate, with two small polar guttules at both ends, smooth, thin-walled.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
D8BEE9FFE66A5B49A48E5E627FFB99A0.taxon	description	Culture characteristics. Colonies on PDA reached a diameter of 20 mm after seven days at 25 ° C. Hyphae white at the center, radiating outward from a pale-yellow inner ring to a light yellowish-brown periphery with a milky white outer ring. The colony reverse exhibited a dark yellow to bright yellow pigmentation. Colonies on OA reached 32 mm after seven days at 25 ° C. Initially, it was a small circle formed by uniform and sparse white hyphae. After 14 days, it grew into slightly sparse hyphae with white clutter inside and dense white hyphae at the edge in a slightly regular circle. On the surface, hyphae balls with uneven sizes from orange to white and tiny black spots were scattered, and sporogenous structures could be observed.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C58F1021D49D5412A5C4F65CCF9D4985.taxon	description	Fig. 6	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C58F1021D49D5412A5C4F65CCF9D4985.taxon	description	Description. Saprobic on dead wood culms. Sexual morph: see Mapook et al. (2020). Asexual morph: Pycnidia on natural host, stromatic, developing above the epidermis and becoming raised when mature. Stromata 60 – 786 × 43 – 306 µm (x ̄ = 320.8 × 172.0 µm, n = 10), with a color ranging from dark brown to black, rough surface with tiny protrusions, some exhibit a certain degree of gloss. and exhibit circular, oval, or irregular shapes, adhering tightly to the surface of decaying wood. On PDA medium, Conidiophores reduced to conidiogenous cells. Conidiogenous cell 8 – 17 × 2 – 5 µm (x ̄ = 11.5 × 3 µm, n = 10), enteroblastic, indeterminate, discrete, unbranched, clavate or ampulliform, aseptate, hyaline, smooth-walled. Conidia (3.3 –) 3.7 – 3.8 (– 4.7) × (2.8 –) 3.1 – 3.2 (3.6) µm (x ̄ = 3.8 × 3.2 µm, n = 50), oblong to ellipsoid or rounded to obtuse ends, aseptate, hyaline to pale yellow, smooth-walled.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C58F1021D49D5412A5C4F65CCF9D4985.taxon	description	Culture characteristics. Under dark conditions at 25 ° C, the colony reaches a diameter of 15 mm within seven days on PDA medium. The colony is dense, smooth, and irregularly shaped, with a lace-like margin and compact structure. The center is grayish-white, bordered by a white lace-like margin, while the outer edge is grayish-black. The reverse side of the colony is black, producing a dark pigment.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
C58F1021D49D5412A5C4F65CCF9D4985.taxon	distribution	Distribution. China, Korea, Thailand.	en	Guo, Shi-Qi, Norphanphoun, Chada, Hyde, Kevin D., Fu, Sha-Min, Sun, Jing-E, Wang, Xing-Chang, Wu, Jiao-Jiao, Al-Otibi, Fatimah, Wang, Yong (2025): Three novel species and a new record of Pleosporales (Didymellaceae, Roussoellaceae) from China. MycoKeys 113: 295-320, DOI: 10.3897/mycokeys.113.139934
