Taxonomic and phylogenetic analyses reveal two new Comoclathris taxa (Dothideomycetes, Pleosporaceae) from Inner Mongolia, China Author Tian, Xing-Guo 0000-0002-8124-1281 School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, China & Guizhou Key Laboratory of Agricultural Microbiology, Guizhou Academy of Agricultural Sciences, Guiyang 550009, China Author Du, Tian-Ye 0000-0003-2105-1803 Yunnan International Joint Laboratory of Digital Conservation and Germplasm Innovation and Application of China-Laos Tea Resources, School of Tea and Coffee, Pu’er University, Pu’er 665000, China Author Ma, An-Dong https://orcid.org/0009-0005-5981-3182 Yunnan International Joint Laboratory of Digital Conservation and Germplasm Innovation and Application of China-Laos Tea Resources, School of Tea and Coffee, Pu’er University, Pu’er 665000, China Author Jeewon, Rajesh 0000-0002-8563-957X Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Réduit 80837, Mauritius & Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, Kunming, China & School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China Author Karunarathna, Samantha C. 0000-0001-7080-0781 Center for Yunnan Plateau Biological Resources Protection and Utilization & Yunnan International Joint Laboratory of Fungal Sustainable Utilization in South and Southeast Asia, College of Biology and Food Engineering, Qujing Normal University, Qujing 655099, China Author Tibpromma, Saowaluck 0000-0002-4706-6547 Center for Yunnan Plateau Biological Resources Protection and Utilization & Yunnan International Joint Laboratory of Fungal Sustainable Utilization in South and Southeast Asia, College of Biology and Food Engineering, Qujing Normal University, Qujing 655099, China Author Bao, Dan-Feng 0000-0002-5697-4280 School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, China & Guizhou Key Laboratory of Agricultural Microbiology, Guizhou Academy of Agricultural Sciences, Guiyang 550009, China text MycoKeys 2026 2026-02-27 129 107 128 journal article 314335 10.3897/mycokeys.129.179192 54579059-c16d-4dc8-b27e-a571d7807f50

Table 2. Morphological characteristics of ascospore and other ecological data of Comoclathris species. NA: Information not available.

Species	Ascospore			Hosts	Collection locations	References
	Color	Septa	Sheath
Comoclathris acuminata	Dark brown	3–8 transverse septa and 3–5 vertical septa	N / A	Ephedra gerardiana	India	Mattoo et al. (2023)
Comoclathris antarctica	Yellow to pale brown	6–8 transverse septa	N / A	Soil sample	Antarctica	Crous et al. (2021)
Comoclathris arctica	Mid to dark reddish-brown	6 transverse septa and 1 vertical septum	With a sheath 2–3 μm wide	Festucae brachyphyllae, Puccinellia angustata	Canada	Shoemaker and Babcock (1992)
Comoclathris arrhenatheri	Yellow to pale brown	4 transverse septa and 2–3 vertical septa	Surrounded by a thick mucilaginous sheath	Arrhenatherum elatius	Italy	Thambugala et al. (2017)
Comoclathris bougainvilleae	N / A	N / A	N / A	Bougainvillea spectabilis	India	Patil and Ramesh (1987)
Comoclathris cichoriacearum	N / A	N / A	N / A	Hieracium villosum	N / A	Nograsek (1990)
Comoclathris clematidis	Brown	3 transverse septa and 1 vertical septum	Surrounded by a thick mucilaginous sheath	Clematis sp.	China	Xu et al. (2024)
Comoclathris compressa	Dark reddish-brown	3 transverse septa and 1 vertical septum	With a uniform sheath 2–3 μm wide	Agastache urticifolia, Agoseris glauca, Aquilegia leptocera, Arternisia pedatzjidi, Balsatnorrhiza deltoidea, Brickellia grandijlora, Coleosanthus grandijlorus, Castilleja miniata, Clematis hirsutissirna, Helianthella sp., Helianthus sp., Juncus balticus, Ligusticum purpureum, Lupinus parvijlorus, Penstemon sp., Polygonum alpina, Rudbeckia sp., Senecio thapsoides, Valeriana sp., Viguiera multijlora, Wyethia mollis, Wyethia sp., Xerophyllum tenux	USA	Shoemaker and Babcock (1992)
Comoclathris depressa	Mid yellowish-brown	3 transverse septa and 1 vertical septum	With a sheath 2–3 μm wide	Arabis sp., Lotnatiutn dissectum	USA	Shoemaker and Babcock (1992)
Comoclathris emodi	Dark yellowish-brown	4 transverse septa and 1 vertical septum	With a sheath 1.5–4 μm wide	Festucae lucidae	India	Shoemaker and Babcock (1992)
Comoclathris europaeae	Brown	7 transverse septa and 1 vertical septum	Surrounded by amucilaginous sheath	Olea europaea	Italy	Brahmanage et al. (2020)
Comoclathris extrema	Dark reddish-brown	4 transverse septa and 1 vertical septum	With a sheath 2–3 μm wide	Lini perenni	India	Shoemaker and Babcock (1992)
Comoclathris flammulae	Dark brown	6 transverse septa and 1–2 vertical septa	Mucilaginous sheath	Clematis flammula, Colutea arborescens	Italy	Brahmanage et al. (2020)
Comoclathris galatellae	Brown or pale brown	2–4 transverse septa and 1–2 vertical septa	Without sheath	Galatella villosa	Russia, Ukraine	Hongsanan et al. (2020)
Comoclathris harperi	Mid reddish-brown	7 transverse septa and 1 vertical septum	With a sheath 1–2 μm wide	Carex rupestris, Hierochloe alpina	Sweden	Shoemaker and Babcock (1992)
Comoclathris incompta	N / A	N / A	N / A	Olea europaea	Greece, Italy	Ariyawansa et al. (2015)
Comoclathris indica	N / A	N / A	N / A	Arachis hypogaea	India	Patil and Pawar (1987)
Comoclathris italica	Brown	6–8 transverse septa and 1–2 vertical septa	Mucilaginous sheath	Dactylis glomerata	Italy	Thambugala et al. (2017)
Comoclathris lanata	Brown to reddish-brown	4–5 transverse septa and 1–2 vertical septa	Surrounded by a distinct, hyaline, mucilaginous 3–8 μm wide sheath	Leptotaenia multifida	USA	Ariyawansa et al. (2015)
Comoclathris lini	yellowish-brown	3–5 transverse septa and 1–2 vertical septa	With a thick mucilaginous sheath	Linum sp.	Italy	Wanasinghe et al. (2015)
Comoclathris lonicerae	yellowish-brown	3–5 transverse septa and 1–2 vertical septa	With a thick mucilaginous sheath	Lonicera sp.	Italy	Brahmanage et al. (2020)
Comoclathris magna	Dark reddish-brown	3 transverse septa and 1 vertical septum	With a sheath 2–4 μm wide	Anemone occidentalis, Chlorogalum pomeridianum, Helianthella californica, Linum perenne, Lomatium nudicaule, Penstemon gracilentus, Sphenosciadium capitellatum, umbellifer	USA	Shoemaker and Babcock (1992)
Comoclathris miliarakisii	N / A	N / A	N / A	Sclerochorton junceum	Greece	Petrak (1938)
Comoclathris persica	Mid reddish-brown	4 transverse septa and 1 vertical septum	With a uniform sheath 3–4 μm wide	Dianthus orientalis	Iran	Shoemaker and Babcock (1992)
Comoclathris pimpinellae	Yellow to light brown	3 transverse septa and 2 vertical septa	Surrounded by a thick, hyaline, a mucilaginous sheath	Pimpinella tragium	Russia	Li et al. (2016)
Comoclathris platysporioides	Dark reddish-brown	5 transverse septa and 1 vertical septum	With a uniform sheath, 1–2 μm wide	Selaginella wrightii	USA	Shoemaker and Babcock (1992)
Comoclathris pseudoverruculosa	N / A	N / A	N / A	Carex firma	N / A	Nograsek (1990)
Comoclathris pyrenophoroides	N / A	N / A	N / A	Festuca and Bromus	Italy	Checa (1998)
Comoclathris quadriseptata	Mid reddish-brown	4 transverse septa and 1 vertical septum	With a uniform sheath 1–2 μm wide	Agropyron divergens, Avena pratensis, Dianthus orientalis, Matthiola sp., Poaceae, Sporobolus cryptandrus	Canada	Shoemaker and Babcock (1992)
Comoclathris rosae	Pale brown	4–7 transverse septa and 1–2 vertical septa	Surrounded by a thick mucilaginous sheath	Rosa canina	Italy	Wanasinghe et al. (2018)
Comoclathris rosarum	Brown	6–7 transverse septa and 2–4 vertical septa	Surrounded by a thick mucilaginous sheath	Rosa canina	Italy	Wanasinghe et al. (2018)
Comoclathris rosigena	Pale brown	5–7 transverse septa and 1 vertical septum	Surrounded by a thick mucilaginous sheath	Rosa canina	Italy	Wanasinghe et al. (2018)
Comoclathris salsolae	Mid yellowish-brown	4 transverse septa and 1 vertical septum	With a uniform sheath 2–3 μm wide	lpomoea leptoplzylla, Salsola sp.	USA	Shoemaker and Babcock (1992)
Comoclathris sedi	Brown to reddish-brown	4–5 transverse septa and 1–2 vertical septa	Surrounded by a distinct, hyaline, mucilaginous 5–9 μm wide sheath	Clematis vitalba, Rosa sp., Sedum sp.	Italy	Ariyawansa et al. (2015)
Comoclathris sisyrinchii	Mid yellowish-brown	3 transverse septa and 1 vertical septum	N / A	Carpha alina, Lomatium californicuin, Sisyrinchium junceum, Sisyrinchium middletoni	USA	Shoemaker and Babcock (1992)
Comoclathris sororia	Dark reddish-brown	3 transverse septa and 1 vertical septum	N / A	Dianthus orientalis	Turkey	Shoemaker and Babcock (1992)
Comoclathris spartii	Yellow to pale brown	Muriform	Surrounded by a mucilaginous sheath	Spartium junceum	Italy	Crous et al. (2014)
Comoclathris subdeflectens	N / A	N / A	N / A	Ranunculus montanus	N / A	Nograsek (1990)
Comoclathris typhicola	Brown	3 transverse septa and 1 vertical septum	N / A	Typha latifolia, Typha angustifolia	Austria, Denmark, England, Germany, India, Iran, Netherlands, Pakistan, Poland, Portugal, Russia, Switzerland, and USA	Cooke (1872); Webster and Lucas (1959); Shoemaker and Babcock (1992); Boerema et al. (2004); Ahmadpour et al. (2024)
Comoclathris utahensis	Dark reddish-brown	3 transverse septa and 1 vertical septum	With a sheath 1–3 μm wide	Arternisia scopulorurn, Brickelliaun bellata, Castilleja rniniata, Eupatoriurn occidentale, Linurn perenne, Linum perenne L., Polygonurn arnphibiurn, Senecio sp., Silene lnontana	USA	Shoemaker and Babcock (1992)
Comoclathris verrucosa	Dark reddish-brown	3 transverse septa and 1 vertical septum	With a uniform sheath 2–3 μm wide	Juncus balticus	USA	Shoemaker and Babcock (1992)
Comoclathris verruculosa	Mid reddish-brown	5 transverse septa and 1 vertical septum	With a uniform sheath 1.5–3.5 μm wide	Deschampsia caespitosa, Poa glauca	Finland, Norway, Switzerland	Shoemaker and Babcock (1992)
Comoclathris wehmeyeri	N / A	N / A	N / A	Crossandra infundibuliformis	India	Pande (1980)
Comoclathris xanthoceratis	Brown to dark brown	3 transverse septa and 1 vertical septum	Surrounded by a thick mucilaginous sheath	Xanthoceras sorbifolium	China	Xu et al. (2024)
Comoclathris xerophila	Mid reddish-brown	3 transverse septa and 1 vertical septum	N / A	Scleropogon brevifolius	Argentina	Shoemaker and Babcock (1992)