Amplistromatales D’souza, Maharachch. & K.D. Hyde
Index Fungorum number: IF551156
An order comprising families Amplistromataceae and Catabotrydaceae. Sexual morph: Stromatic or non-stromatic. Stromata if present superficial, obovoid to pulvinate, soft or firm textured. Ascomata perithecial, rarely subiculate, solitary or gregarious, globose to sub globose, monostichous or polystichous with long necks. Paraphyses abundant, persistent, longer than asci. Asci numerous, unitunicate, stipitate, cylindrical to clavate, with a small, J-, apical ring. Ascospores hyaline, globose, aseptate. Asexual morph: Acrodontium-like for Amplistroma.
Type family: Amplistromataceae
Notes: Maharachchikumbura et al. (2015) introduced Amplistromatales (in Sordariomycetes order incertae sedis) comprising two families, Amplistromataceae and Catabotryaceae. Subsequent studies by Daranagama et al. (2017) and Hongsanan et al. (2017) accepted Amplistromatales in Sordariomycetes incertae sedis with a stem age of 165 MYA. Hyde et al. (2017a) proposed Catabotryaceae as a separate order based on stem age at 165 MYA. In this study, Catabotryaceae is placed in Catabotryales, and Amplistromataceae is placed in Amplistromatales with high statistical support (100% MP/100% ML/1.00 PP; Fig. 5). Catabotryales is introduced as a new order based on its stem age (172 MYA). Currently, there is one family and three genera in Amplistromatales.
Type species: Amplistroma carolinianum Huhndorf et al.
Huhndorf SM,Miller AN, GreifM, SamuelsMG (2009) Amplistroma gen. nov. and its relation to Walrothiella, two genera with globose ascospores and acrodontium-like anamorphs. Mycologia 101(6):904–919
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Réblová M, Seifert KA (2004) Cryptadelphia (Trichosphaeriales), a new genus for holomorphs with Brachysporium anamorphs, and clarification of the taxonomic status of Wallrothiella. Mycologia 96:343–367