Kirschsteiniotheliaceae Boonmee & K.D. Hyde, Mycolo- gia 104(3): 705 (2012)
Index Fungorum number: IF 561021; Facesoffungi number: FoF 01737, 24 species.
Saprobic on decaying wood. Sexual morph: Ascomata superficial, subglobose to globose, dark brown to black, membranaceous, solitary, with a central papilla. Peridium composed of cells of textura angularis. Hamathecium comprising numerous, filiform, hyaline, mostly cellular pseudoparaphyses. Asci 8-spored, bitunicate, cylindrical to clavate, with a long pedicel, apical rounded, with an ocular chamber. Ascospores 2-seriate, ellipsoidal, septate, slightly curved, dull green, brown to dark brown at maturity, with median septum or in lower part, some ascospores with secondary septa, thick-walled, lacking a mucilaginous sheath. Asexual morph: Hyphomycetous. Conidiophores macronematous, mononematous, erect, apically branched, arising straight or slightly curved, solitary, elongate and thick-walled, septate, brown to dark brown, smooth-walled. Conidiogenous cell tretic, terminal, constricted at delimiting septa. Conidia broadly ellipsoid-obovoid, brown to dark brown, constricted and darkly pigmented at the septa, rounded at both ends, smooth-walled. (Descriptions based on Hongsanan et al. 2020b)
Type: Kirschsteiniothelia D. Hawksw., J. Linn. Soc., Bot. 91: 182 (1985).
Notes: Kirschsteiniotheliaceae species are mostly saprobes on dead wood from terrestrial and aquatic habitats (Boonmee et al. 2012; Hyde et al. 2013; Su et al. 2016). Taeniolella is an asexual genus with saprobic, endophytic and lichenicolous life styles. It was found to be a polyphyletic genus distributed between the Dothideomycetes and the Sordariomycetes (Ertz et al. 2016). The type species Taeniolella exilis formed a lineage within Kirschsteiniotheliaceae (Ertz et al. 2016), therefore, the genus was placed in Kirschsteiniotheliaceae by Ertz et al. (2016) and Wijayawardene et al. (2017a). However, Heuchert et al. (2018) and Dong et al. (2020) suggested that four freshwater species of Taeniolella are undoubtedly not congeneric with Taeniolella sensu lato. Thus, we suggest excluding this genus from Kirschsteiniotheliaceae and further studies are needed to resolve placement of this group. (Notes from Hongsanan et al. 2020b)
Boonmee S, Ko-Ko TW, Chukeatirote E, Hyde KD, Chen H, Cai L, McKenzie EHC, Jones EBG, Kodsueb R, Hassan BA (2012) Two new Kirschsteiniothelia species with Dendryphiopsis anamorphs cluster in Kirschsteiniotheliaceae fam. nov. Mycologia 104:698–714
Dong W, Wang B, Hyde KD, McKenzie EHC, Raja HA, Tanaka K, Abdel-Wahab MA, Abdel-Aziz FA, Doilom M, Phookamsak R, Hongsanan S, Wanasinghe DN, Yu XD, Wang GN, Yang H, Yang J,Thambugala KM, Tian Q, Luo ZL, Yang JB, Miller AN, Fournier J, Boonmee S, Hu DM, Nalumpang S, Zhang H (2020) Freshwater Dothideomycetes. Fungal Divers (accepted)
Ertz D, Heuchert B, Braun U, Freebury CE, Common RS, Diederich P (2016) Contribution to the phylogeny and taxonomy of the genus Taeniolella, with a focus on lichenicolous taxa. Fungal Biol 120:1416–1447
Heuchert B, Braun U, Diederich P, Ertz D (2018) Taxonomic monograph of the genus Taeniolella s. lat. (Ascomycota). FUSE 2:69–261
Hyde KD, Jones EBG, Liu JK, Ariyawansa H et al. (2013) Families of Dothideomycetes. Fungal Divers 63:1–313
Wijayawardene NN, Hyde KD, Lumbsch HT, Liu JK, Maharachchikumbura SSN, Ekanayaka AH, Tian Q, Phookamsak R (2018) Outline of Ascomycota: 2017. Fungal Divers 88:167–263
Su HY, Hyde KD, Maharachchikumbura SSN, Ariyawansa HA, Luo ZL, Promputtha I, Tian Q, Lin CG, Shang QJ, Zhao YC, Chai HM, Liu XY, Bahkali AH, Bhat JD, McKenzie EHC, Zhou DQ (2016) The families Distoseptisporaceae fam. nov., Kirschsteiniotheliaceae, Sporormiaceae and Torulaceae, with new species from freshwater in Yunnan Province, China. Fungal Divers 80:375–40
Recent SpeciesNeohelicomyces submersus