identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
A1725E2AC29655EB95E503FEC45D00F0.text	A1725E2AC29655EB95E503FEC45D00F0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diorygma guizhouense Wei Wu & S. B. Fu 2025	<div><p>Diorygma guizhouense Wei Wu &amp; S. B. Fu sp. nov.</p><p>Fig. 2</p><p>Etymology.</p><p>The specific epithet “ guizhouense ” refers to the location where the holotype was collected.</p><p>Holotype.</p><p>KUN-L 0093724</p><p>Description.</p><p>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.</p><p>Chemistry.</p><p>Thallus K + reddish brown, C –, KC + orange, P + yellow, TLC: stictic acid, salazinic acid, norstictic acid.</p><p>Material examined.</p><p>China, • Guizhou Province, Congjiang County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=108.60534&amp;materialsCitation.latitude=25.335712" title="Search Plazi for locations around (long 108.60534/lat 25.335712)">Yueliangshan Nature Reserve</a>, 25°20'8.56"N, 108°36'19.23"E, 987 m elev., 24 Oct. 2023, Ze Yang &amp; Bo Liu, Y 400 (holotype KUN-L 0093724) .</p><p>Notes.</p><p>The new species Diorygma guizhouense is characterized by lirelliform apothecia, which are erumpent with a narrow to slightly open disc covered by a white pruina. The exciple is uncarbonized, the hymenium is hyaline, not inspersed, and reacts I + blue-violet. The ascospores, one per ascus, are hyaline, richly muriform, with peripheral and central spore locules of approximately equal size, containing 24–32 × 5–12 locular, measuring 125–179 × 36–58 μm, I –. Chemically, this species contains stictic, salazinic, and norstictic acids.</p><p>Phylogenetic analysis based on combined LSU and mtSSU sequence data indicates that D. guizhouense is closely related to Diorygma tiantaiense (Fig. 1). A comparison with D. tiantaiense reveals a 0.97 % nucleotide difference in the LSU region (7 / 723 bp). Morphologically, D. guizhouense differs by having a narrowly open disc (vs. fully open) and chemically by having a hymenium that reacts I + blue-violet (vs. I –). According to the TLC result, the new species contains stictic and salazinic acids rather than only norstictic acid in D. tiantaiense (Cui et al. 2024) .</p><p>According to the taxonomic key provided by Feuerstein et al. (2014), D. guizhouense is morphologically similar to D. dandeliense, which was later synonymized to D. karnatakense (Ansil et al. 2023) . However, D. guizhouense and D. karnatakense occupy distinct clades in the phylogenetic tree, supporting their separation at the species level. Chemotaxonomically, TLC analysis shows that D. guizhouense contains stictic, salazinic, and norstictic acids, whereas D. karnatakense lacks stictic acid, and the ascospores of D. guizhouense exhibit a negative iodine reaction (I –), in contrast to the I + violet reaction reported in related species (Ansil et al. 2023). The nucleotide comparison reveals clear differences between the two species: 4.28 % (31 / 725 bp) for LSU and 3.45 % (25 / 725 bp) for mtSSU.</p></div>	https://treatment.plazi.org/id/A1725E2AC29655EB95E503FEC45D00F0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Wu, Wei;Jiang, Shu-Hao;Chai, Lin-Shan;Bo, He-Yun;Jayawardena, Ruvishika S.;Fu, Shao-Bin;Meng, Qing-Feng	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.text	542CF60FDFD25BF4BE3E1E9704B87EA7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diorygma leigongshanense Wei Wu & S. B. Fu 2025	<div><p>Diorygma leigongshanense Wei Wu &amp; S. B. Fu sp. nov.</p><p>Fig. 3</p><p>Etymology.</p><p>The specific epithet “ leigongshanense ” refers to the location where the holotype was collected.</p><p>Holotype.</p><p>KUN-L 0093725</p><p>Description.</p><p>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.</p><p>Chemistry.</p><p>Thallus K + reddish brown, C –, KC + yellow, P + yellow, TLC: stictic acid, salazinic acid, norstictic acid.</p><p>Material examined.</p><p>China, • Guizhou Province, Leishan County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=108.19518&amp;materialsCitation.latitude=26.378656" title="Search Plazi for locations around (long 108.19518/lat 26.378656)">Leigong Mountain National Nature Reserve</a>, 26°22'43.16"N, 108°11'42.65"E, 1681 m elev., on bark, 27 Oct. 2023, Ze Yang &amp; Bo Liu, LGS 207 (holotype KUN-L 0093725) .</p><p>Notes.</p><p>This species is characterized by its erumpent lirelliform apothecia, with discs surrounded by entire, raised thalline margins that are widely open and covered with a thin, pale yellowish pruina. The exciple is uncarbonized, and the hymenium is hyaline, non-inspersed, and I –. Spores are single per ascus, hyaline, richly muriform, with peripheral and central spore locules of approximately equal size, 20–42 × 5–10 locular, measuring 119–170 × 27–46 μm. Chemically, this species contains stictic, salazinic, and norstictic acids.</p><p>Phylogenetic analysis based on combined LSU and mtSSU sequence data places D. leigongshanense as closely related to Diorygma tiantaiense (Fig. 1). However, Diorygma leigongshanense differs chemically by the presence of stictic and salazinic acids (vs. only containing norstictic acid). Morphologically, D. leigongshanense has lirelliform apothecia, in contrast to the oval, open, and raised ascocarps of D. tiantaiense (Cui et al. 2024) .</p><p>Diorygma leigongshanense is morphologically similar to D. rufopruinosum (A. W. Archer) Kalb, Staiger &amp; Elix. However, it can be distinguished by its ascospore septation pattern: in D. leigongshanense, the peripheral cells and central cells are of similar size, whereas in D. rufopruinosum, the peripheral cells are noticeably smaller. Diorygma leigongshanense contains stictic, salazinic, and norstictic acids, while D. rufopruinosum produces protocetraric acid and lacks stictic acid (Kalb et al. 2004).</p><p>Morphologically, Diorygma leigongshanense also shares similarities with D. chumphonense Sutjaritturakan &amp; K. Kalb, but it can be distinguished by having longer ascospores (119–170 μm vs. 95–110 μm), peripheral cells of equal size to the central ones (vs. peripheral cells distinctly smaller), lacking stictic acid (vs. presence), and the I – (vs. I + blue-violet) (Sutjaritturakan et al. 2014).</p></div>	https://treatment.plazi.org/id/542CF60FDFD25BF4BE3E1E9704B87EA7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Wu, Wei;Jiang, Shu-Hao;Chai, Lin-Shan;Bo, He-Yun;Jayawardena, Ruvishika S.;Fu, Shao-Bin;Meng, Qing-Feng	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.text	3CB8A1A74AF951E5AB8169A4AEEF6973.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diorygma locitonitrus Wei Wu & S. B. Fu 2025	<div><p>Diorygma locitonitrus Wei Wu &amp; S. B. Fu sp. nov.</p><p>Fig. 4</p><p>Etymology.</p><p>“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.</p><p>Holotype.</p><p>KUN-L 0093723</p><p>Description.</p><p>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.</p><p>Chemistry.</p><p>Thallus K + reddish brown, C –, KC + orange, P + yellow, TLC: constictic acid, salazinic acid, norstictic acid.</p><p>Material examined.</p><p>China, • Guizhou Province, Leishan County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=108.19632&amp;materialsCitation.latitude=26.38165" title="Search Plazi for locations around (long 108.19632/lat 26.38165)">Leigong Mountain National Nature Reserve</a>, 26°22'53.94"N, 108°11'46.76"E, 1771 m elev., on bark, 27 Oct. 2023, Ze Yang &amp; Bo Liu, LGS 256-1 (holotype KUN-L 0093723) .</p><p>Notes.</p><p>This species is characterized by its lirelliform apothecia, which are erumpent with narrow to open discs covered by a white pruina; the exciple is uncarbonized, and the hymenium is hyaline, not inspersed, and reacts I + weakly blue-violet. The ascospores, one per ascus, are hyaline, richly muriform, with peripheral cells distinctly smaller than central ones, containing 26–40 × 6–15 locular, measuring 117–189 × 33–60 μm, I –. Chemically, this species contains constictic, salazinic, and norstictic acids.</p><p>Phylogenetic analysis based on combined LSU and mtSSU sequence data places Diorygma locitonitrus as closely related to D. tiantaiense (Fig. 1). However, nucleotide comparison of the LSU reveals a difference between D. locitonitrus of 0.80 % (6 / 758 bp) between the two species. The new taxon is chemically distinct from the presence of both norstictic and salazinic acids, while D. tiantaiense contains only norstictic acid. In addition, the hymenium of D. locitonitrus exhibits a weakly I + blue-violet reaction in Lugol’s solution, in contrast to the I – reaction in D. tiantaiense (Cui et al. 2024) .</p><p>Diorygma locitonitrus is morphologically similar to D. chumphonense but differs in the larger ascospores (117–189 × 33–60 μm vs. 95–110 × 37–40 μm) and the iodine reaction of the hymenium (I –, vs. I + weakly violet). Additionally, the ascospores of D. locitonitrus are I –, in contrast to the I + violet reaction observed in D. chumphonense (Sutjaritturakan et al. 2014) .</p></div>	https://treatment.plazi.org/id/3CB8A1A74AF951E5AB8169A4AEEF6973	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Wu, Wei;Jiang, Shu-Hao;Chai, Lin-Shan;Bo, He-Yun;Jayawardena, Ruvishika S.;Fu, Shao-Bin;Meng, Qing-Feng	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.text	BFC6EFA1FFA356AFBDF58400FEE7E600.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diorygma weii Wei Wu & S. B. Fu 2025	<div><p>Diorygma weii Wei Wu &amp; S. B. Fu sp. nov.</p><p>Fig. 5</p><p>Etymology.</p><p>The species epithet “ weii ” honors Professor Jiangchun Wei (Chinese Academy of Sciences), a venerable lichenologist, for his pioneering contributions to lichenology in China.</p><p>Holotype.</p><p>KUN-L 0093727</p><p>Description.</p><p>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.</p><p>Chemistry.</p><p>Thallus K + reddish brown, C –, KC + yellow, P + yellow, TLC: Norstictic acid.</p><p>Material examined.</p><p>China, • Guizhou Province, Leishan County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=108.289986&amp;materialsCitation.latitude=26.342762" title="Search Plazi for locations around (long 108.289986/lat 26.342762)">Leigong Mountain National Nature Reserve</a>, 26°20'33.94"N, 108°17'23.94"E, 831 m elev., on the bark, 25 Oct. 2023, Ze Yang &amp; Bo Liu, Coll. No. LGS 57 (holotype KUN-L 0093727) .</p><p>Notes.</p><p>This new species is characterized by its lirelliform apothecia, which are prominent with a closed-to-slit-like disc covered by a thin white pruina. The exciple is uncarbonized, and the hymenium is hyaline, not inspersed, and reacts I + violet. Spores are single per ascus, hyaline, richly muriform, with peripheral and central spore locules of approximately equal size, 24–28 × 6–9 locular, measuring 73–119 × 18–35 μm, I + violet. Chemically, this species contains only norstictic acid.</p><p>Phylogenetic analysis based on the combined data of LSU and mtSSU sequences indicates that D. weii forms a clade with D. karnatakense (Fig. 1). However, nucleotide divergence in mtSSU between the two species is 3.52 % (23 / 653 bp). Morphologically, D. weii has asci containing a single spore, versus 1–8 - spored asci in D. karnatakense . Chemically, D. weii only produces norstictic acid, whereas D. karnatakense contains both norstictic and salazinic acids (Ansil et al. 2023).</p><p>Diorygma weii shares morphological similarities with Diorygma inaequale and D. dealbatum B. O. Sharma &amp; Makhija. However, both D. inaequale and D. dealbatum contain both salazinic and norstictic acids, whereas the new species produces only norstictic acid (Sharma and Makhija 2009 a).</p></div>	https://treatment.plazi.org/id/BFC6EFA1FFA356AFBDF58400FEE7E600	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Wu, Wei;Jiang, Shu-Hao;Chai, Lin-Shan;Bo, He-Yun;Jayawardena, Ruvishika S.;Fu, Shao-Bin;Meng, Qing-Feng	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
