taxonID	type	description	language	source
A1725E2AC29655EB95E503FEC45D00F0.taxon	description	Fig. 2	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
A1725E2AC29655EB95E503FEC45D00F0.taxon	etymology	Etymology. The specific epithet “ guizhouense ” refers to the location where the holotype was collected.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
A1725E2AC29655EB95E503FEC45D00F0.taxon	description	Description. Sexual morph: Thallus corticolous, crustose, thin, tightly attached to the substratum, pale grey to greenish grey, rough, dull, lacking isidia and soredia, prothallus absent. Apothecia lirelliform, scattered or aggregated, erumpent, simple or irregularly branched, curved, and either terminally rounded or acute, measuring 2 – 5 mm long and 0.2 – 0.4 mm wide. Disc narrow to slightly open, covered with a white pruina. Exciple uncarbonized, brown at apex, pale yellowish brown towards base. Epihymenium brown, 10 – 30 µm high. Hymenium hyaline, not inspersed, 150 – 210 μm high, I + weakly blue-violet. Paraphysis anastomosing, filiform, 1 – 2.5 µm wide. Hypothecium weakly yellowish brown, 15 – 45 µm high. Asci fusiform, 118 – 222 × 37 – 82 μm, I –. Ascospores 1 / ascus, hyaline, richly muriform, peripheral and central spore locules of ± equal size, ends with gelatinous caps, 24 – 32 × 5 – 12 locular, (104 –) 125 – 119 (– 214) × (30 –) 36 – 58 (– 77) μm (x ̄ = 152 × 47 μm, n = 20), I –. Asexual moprh: not observed.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
542CF60FDFD25BF4BE3E1E9704B87EA7.taxon	description	Fig. 3	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
542CF60FDFD25BF4BE3E1E9704B87EA7.taxon	etymology	Etymology. The specific epithet “ leigongshanense ” refers to the location where the holotype was collected.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
542CF60FDFD25BF4BE3E1E9704B87EA7.taxon	description	Description. Sexual morph: Thallus corticolous, crustose, thin, tightly attached to the substratum, pale grey to greenish grey, rough, dull, lacking isidia and soredia, prothallus absent. Ascomata lirellate, numerous, oblong to long, ± flexuous, simple or with a few branches, measuring 0.7 – 2.5 mm long and 0.4 – 1.2 mm wide. Disc surrounded by entire raised thalline margins, widely open, covered with a thin, pale yellowish pruina. Exciple uncarbonized, basally and laterally brownish. Epihymenium brown, 15 – 41 µm high. Hymenium hyaline, not inspersed, 160 – 350 μm high, I –. Paraphysis anastomosing, filiform, 1 – 2.5 µm wide. Hypothecium brown, 20 – 48 µm high. Asci fusiform, 106 – 202 × 28 – 58 μm, I –. Ascospores 1 / ascus, hyaline, richly muriform, peripheral and central spore locules of ± equal size, 20 – 42 × 5 – 10 locular, (95 –) 119 – 170 (– 194) × (22 –) 27 – 46 (– 54) μm (x ̄ = 144 × 37 μm, n = 20), I –. Asexual moprh: not observed.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
3CB8A1A74AF951E5AB8169A4AEEF6973.taxon	description	Fig. 4	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
3CB8A1A74AF951E5AB8169A4AEEF6973.taxon	etymology	Etymology. “ locitonitius ” combines “ loci, ” signifying locality, with “ tonitius, ” the Latin word for thunder, to mean “ of the locality of thunder, ” denoting the location where the holotype was found.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
3CB8A1A74AF951E5AB8169A4AEEF6973.taxon	description	Description. Sexual morph: Thallus corticolous, crustose, thin, tightly attached to the substratum, pale grey to greenish grey, rough, dull, lacking isidia and soredia, prothallus absent. Apothecia lirelliform, scattered or aggregated, erumpent, simple or irregularly branched, curved, and either terminally rounded or acute, measuring 0.5 – 2.5 mm long and 0.2 – 0.6 mm wide. Disc narrow to open, covered with a white pruina. Exciple uncarbonized, brown at apex, pale yellowish brown towards base. Epihymenium brown, 10 – 42 µm high. Hymenium hyaline, not inspersed, 180 – 350 μm high, I + weakly blue-violet. Paraphysis anastomosing, filiform, 1 – 2.5 µm wide. Asci fusiform, 112 – 260 × 30 – 81 μm, I –. Ascospores 1 / ascus, hyaline, richly muriform, peripheral cells distinctly smaller than central ones, 26 – 40 / 6 – 15 locular, (105 –) 117 – 189 (– 247) × (25 –) 33 – 60 (– 76) μm (x ̄ = 153 × 47 μm, n = 20), I –. Asexual moprh: not observed.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
BFC6EFA1FFA356AFBDF58400FEE7E600.taxon	description	Fig. 5	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
BFC6EFA1FFA356AFBDF58400FEE7E600.taxon	etymology	Etymology. The species epithet “ weii ” honors Professor Jiangchun Wei (Chinese Academy of Sciences), a venerable lichenologist, for his pioneering contributions to lichenology in China.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
BFC6EFA1FFA356AFBDF58400FEE7E600.taxon	description	Description. Sexual morph: Thallus corticolous, crustose, thin, tightly attached to the substratum, milky white, with a slight greenish tint, rough, dull, lacking isidia and soredia, prothallus absent. Apothecia lirelliform, prominent, stellately branched, curved, and either terminally rounded or acute, measuring 2 – 7 mm long and 0.1 – 0.4 mm wide. Disc closed to slit-like, covered with a thin white pruina. Proper margin conspicuous. Exciple uncarbonized, brown at apex, pale yellowish brown towards base. Hymenium hyaline, not inspersed, 150 – 210 μm high, I + violet. Paraphysis anastomosing, filiform, 1 – 2 µm wide. Asci fusiform, 60 – 155 × 18 – 45 μm, I – or I + violet. Ascospores 1 / ascus, hyaline, richly muriform, peripheral and central spore locules of ± equal size, ends with gelatinous caps, 24 – 28 / 6 – 9 locular, (55 –) 73 – 119 (– 142) × (11 –) 18 – 35 (– 41) μm (x ̄ = 96 × 27 μm, n = 20), I + violet. Asexual moprh: not observed.	en	Wu, Wei, Jiang, Shu-Hao, Chai, Lin-Shan, Bo, He-Yun, Jayawardena, Ruvishika S., Fu, Shao-Bin, Meng, Qing-Feng (2025): Four new species of the lichen genus Diorygma (Graphidaceae, Ostropales) from Guizhou, China. MycoKeys 121: 111-142, DOI: 10.3897/mycokeys.121.157714
