identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
585B00DDDB4D5802889CEB1645D04FD8.text	585B00DDDB4D5802889CEB1645D04FD8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Annulatascus dongtingensis Z. Y. Wang, K. D. Hyde & Q. Zhao 2026	<div><p>Annulatascus dongtingensis Z. Y. Wang, K. D. Hyde &amp; Q. Zhao sp. nov.</p><p>Fig. 2</p><p>Etymology.</p><p>The epithet “ dongtingensis ” refers to the collecting site where the holotype was collected.</p><p>Holotype.</p><p>HKAS 150455.</p><p>Description.</p><p>Saprobic on submerged wood. Sexual morph: Ascomata 200–350 µm high × 210–360 µm diam. (x ̄ = 270 × 275 µm, n = 10), scattered to gregarious, immersed with long neck erumpent straight through the host substrate surface, black, coriaceous, subglobose to ellipsoidal. Ostiole 400–750 µm (x ̄ = 520 µm, n = 10) long, central, black, subcylindrical or conical, curved or straight, periphysate. Peridium 14–30 µm wide (x ̄ = 23.3 µm, n = 20), with a brown to dark brown outer layer composed of textura prismatica to textura angularis, intermingled with host tissues, inner layer composed of hyaline textura angularis cells. Paraphyses 3–6 µm wide × 160–220 µm length (x ̄ = 4.4 × 185 µm, n = 30), hyaline, numerous, unbranched, septate, constricted or not at the septa. Asci 220–270 × 11–14 µm (x ̄ = 252 × 12 µm, n = 10), 8 - spored, unitunicate, cylindrical, apex rounded, with an up to 120 μm long or rarely short pedicel, and a large, wedge-shaped, apical ring, 3–4.2 μm high × 5.5–6.3 μm wide (x ̄ = 3.7 × 5.9 µm, n = 10). Ascospores 29–32 × 9–10 µm (x ̄ = 30.6 × 9.5 µm, n = 30), hyaline, aseptate, fusiform, straight to slightly curved, minutely guttulate, thin-walled, smooth-walled, with a mucilaginous sheath. Asexual morph: Undetermined.</p><p>Culture characteristics.</p><p>Ascospore germinate on PDA within 24 h at 25 ° C in a dark incubator. Germ tubes are produced from both ends. Colonies reach 2 cm diam after one month at 25 ° C, circular, cottony surface, umbonate, entire edge, dense hyphae, with brown sparse mycelium ring, light brown to yellowish-white from above, yellow-brown around the brown center from below, no pigment produced.</p><p>Material examined.</p><p>China • Hunan Province, Yuanjiang City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.6053&amp;materialsCitation.latitude=28.799467" title="Search Plazi for locations around (long 112.6053/lat 28.799467)">Dongting Lake</a> (28°47'58.08"N, 112°36'19.09"E, 11 m), submerged wood in shoreline of Dongting Lake, 21 December 2024, Zhi-Yang Wang, D 4 S 4-1 (HKAS 150455, holotype); ex-type KUNCC 25-20208 ; ibid., D 4 S 4-1 A (HKAS 150456, isotype), living culture KUNCC 25-20209 .</p><p>GenBank numbers.</p><p>KUNCC 25-20208 = ITS: PZ 174008, LSU: PZ 174012, SSU: PZ 174016; KUNCC 25-20209 = ITS: PZ 174009, LSU: PZ 174013, SSU: PZ 174017.</p><p>Notes.</p><p>Based on a combined phylogenetic analysis of LSU, ITS, and SSU sequence data, Annulatascus dongtingensis forms a well-supported clade sister to A. hongkongensis and A. thailandensis (Fig. 1). Among these species, A. dongtingensis can be readily distinguished from A. hongkongensis by its narrower asci (252 × 12 µm, L / W ≈ 21 vs. 257 × 26 µm, L / W ≈ 9.9), smaller ascospores (30.6 × 9.5 µm, L / W ≈ 3.2 vs. 36 × 14 µm, L / W ≈ 2.6), and number of septa per ascospore (aseptate vs. 3 - septate) (Ho et al. 1999). In addition, the paraphyses of A. dongtingensis are distinctly narrower (3–6 µm vs. 6.5–8.5 µm) (Ho et al. 1999). Annulatascus dongtingensis also differs from A. thailandensis in having smaller asci (252 × 12 µm, L / W ≈ 21 vs. 310 × 13.7 µm, L / W ≈ 22.6) and narrower ascospores (30.6 × 9.5 µm, L / W ≈ 2.6 vs. 30.8 × 11.2 µm, L / W ≈ 2.8) (Hyde et al. 2020). Further, A. dongtingensis possesses aseptate ascospores, whereas A. thailandensis has 1–2 - septate ascospores (Hyde et al. 2020). The new species is also morphologically distinct in its immersed ascomata with a straight neck, in contrast to the superficial ascomata of A. thailandensis, which bear long or short necks that lie horizontally or obliquely across the substrate surface (Zhang et al. 2017; Hyde et al. 2020; Dong et al. 2021). The base pair comparisons (excluding gaps) of LSU show that A. dongtingensis differs from A. hongkongensis and A. thailandensis by 5.4 % (45 / 827 bp) and 0.5 % (4 / 827 bp), respectively. However, low sequence divergence is also common within the genus; for example, A. thailandensis differs from A. saprophyticus by 0.8 % (7 / 829 bp) and from A. tratensis by 0.9 % (8 / 850 bp). The combination of these morphological differences, together with phylogenetic evidence, clearly supports the recognition of Annulatascus dongtingensis as a novel species.</p></div>	https://treatment.plazi.org/id/585B00DDDB4D5802889CEB1645D04FD8	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	Wang, Zhi-Yang;Thiyagaraja, Vinodhini;He, Shu-Cheng;Kularathnage, Nuwan;Yuan, Ling-Ling;Cheewangkoon, Ratchadawan;Hyde, Kevin D.;Zhao, Qi	Wang, Zhi-Yang, Thiyagaraja, Vinodhini, He, Shu-Cheng, Kularathnage, Nuwan, Yuan, Ling-Ling, Cheewangkoon, Ratchadawan, Hyde, Kevin D., Zhao, Qi (2026): Two new species of Annulatascaceae (Annulatascales, Sordariomycetes) from Dongting Lake. MycoKeys 136: 217-232, DOI: 10.3897/mycokeys.136.188740
7DEF986253735380A432A9C433393F8C.text	7DEF986253735380A432A9C433393F8C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Fusoidigranularius dongtingensis Z. Y. Wang, K. D. Hyde & Q. Zhao 2026	<div><p>Fusoidigranularius dongtingensis Z. Y. Wang, K. D. Hyde &amp; Q. Zhao sp. nov.</p><p>Fig. 3</p><p>Etymology.</p><p>The epithet “ dongtingensis ” refers to the collecting site where the fungus was collected.</p><p>Holotype.</p><p>HKAS 150454.</p><p>Description.</p><p>Saprobic on submerged wood. Sexual morph: Ascomata 240–410 µm high × 210–400 µm diam. (x ̄ = 321 × 271 µm, n = 10), scattered to gregarious, immersed, ostiolate, black, coriaceous, subglobose to obpyriform. Ostiole 130–200 µm long × 80–110 µm wide (x ̄ = 168 × 93 µm, n = 10), central, black, subcylindrical, straight, periphysate. Peridium 22–70 µm wide (x ̄ = 42 µm, n = 30) with 6–11 layers, a dark brown outer part composed cell of textura angularis, inner part composed of 2–4 layers, pale brown to hyaline textura angularis to textura prismatica cells. Paraphyses 3.5–8.4 µm wide × 150–250 µm length (x ̄ = 5.7 × 196 µm, n = 30), hyaline, numerous, unbranched or rarely branched, septate, constricted or not at the septa, tapering distally. Asci 306–413 × 8–10 µm (x ̄ = 360 × 9 µm, n = 10), 8 - spored, unitunicate, cylindrical, apex rounded, with up to 200 μm long or rarely short pedicel and a large, refractive, wedge-shaped, apical ring, 2.6–3.7 μm high × 4.5–5.4 μm wide (x ̄ = 3.1 × 4.9 µm, n = 10). Ascospores 33–40 × 7.5–9 µm (x ̄ = 36.5 × 8.5 µm, n = 30), hyaline, 3 - septate or occasionally 4 - septate, constricted at the septa, fusoid, both ends rounded, straight to slightly curved, guttulate, smooth-walled. Asexual morph: Undetermined.</p><p>Culture characteristics.</p><p>Ascospore germinate on PDA within 24 h at 25 ° C in a dark incubator. Germ tubes are produced from both ends. Colonies reach 3.4 cm diam after one month at 25 ° C, circular, rough surface, umbonate, filiform edge, dense hyphae, white from above, yellow-white around brown spot in the center from below, no pigment.</p><p>Material examined.</p><p>China • Hunan Province, Yiyang City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.33747&amp;materialsCitation.latitude=28.899605" title="Search Plazi for locations around (long 112.33747/lat 28.899605)">Dongting Lake</a> (28°53'58.58"N, 112°20'14.88"E, 10 m), submerged wood in shoreline of Dongting Lake, 20 December 2024, D 3 S 3-1 (HKAS 150454, holotype); ex-type KUNCC 25-20200 ; ibid., D 3 S 5-1 (HKAS 150457, isotype), living culture KUNCC 25-20203 .</p><p>GenBank numbers.</p><p>KUNCC 25-20200 = ITS: PZ 174006, LSU: PZ 174010, SSU: PZ 174014; KUNCC 25-20203 = ITS: PZ 174007, LSU: PZ 174011, SSU: PZ 174015.</p><p>Notes.</p><p>In the phylogenetic analysis, Fusoidigranularius dongtingensis clustered with F. nilensis (Fig. 1). Although morphologically similar, the new species can be distinguished from F. nilensis by several characters. Fusoidigranularius dongtingensis has smaller ostioles (130–200 × 80–110 µm vs. 240–360 × 96–112 µm), narrower asci (360 × 9 µm, L / W ≈ 40.0 vs. 322.5 × 12.2 µm, L / W ≈ 26.4), and fewer septa per ascospore [3 (– 4) - septate vs. 5–9 (– 11) - septate] (Abdel-Wahab et al. 2011). In addition, the position and orientation of the ostiolar neck differ between the two species: in F. dongtingensis, the neck is straight and projects vertically through the host substrate, whereas in F. nilensis, it is oriented horizontally and lies along the substrate surface (Abdel-Wahab et al. 2011; Zhang et al. 2017; Dong et al. 2021). The base pair comparisons (excluding gaps) of LSU show that F. dongtingensis differs from F. nilensis by 1.98 % (16 / 807 bp). Therefore, Fusoidigranularius dongtingensis is introduced as a novel species based on morphological and phylogenetic analyses.</p></div>	https://treatment.plazi.org/id/7DEF986253735380A432A9C433393F8C	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	Wang, Zhi-Yang;Thiyagaraja, Vinodhini;He, Shu-Cheng;Kularathnage, Nuwan;Yuan, Ling-Ling;Cheewangkoon, Ratchadawan;Hyde, Kevin D.;Zhao, Qi	Wang, Zhi-Yang, Thiyagaraja, Vinodhini, He, Shu-Cheng, Kularathnage, Nuwan, Yuan, Ling-Ling, Cheewangkoon, Ratchadawan, Hyde, Kevin D., Zhao, Qi (2026): Two new species of Annulatascaceae (Annulatascales, Sordariomycetes) from Dongting Lake. MycoKeys 136: 217-232, DOI: 10.3897/mycokeys.136.188740
