Ascagilis
Ascagilis K.D. Hyde, Aust. Syst. Bot. 5(1): 109 (1992).
Index Fungorum number: IF 21262; Facesoffungi number: FoF 09187, 7 morphological species (Species Fungorum 2022), 7 species with molecular data.
Saprobic on submerged wood. Sexual morph: Ascomata semi-immersed or superficial, solitary, scattered or gregarious, globose or subglobose, coriaceous, black, ostiolate. Peridium comprising several layers of thin-walled, brown, angular cells. Pseudoparaphyses numerous, cellular, hyaline, thin, septate, branched. Asci 8-spored, clavate, obclavate, broadly or narrowly cylindrical, fissitunicate, sometimes expanding 4–5 times longer than original length, with an ocular chamber and ring. Ascospores bi- to tri-seriate, uniseptate, brown, mostly with a refractive mucilaginous pad at each end. Asexual morph: Unknown (adapted from Dong et al. 2020).
Type species: Ascagilis bipolaris K.D. Hyde
Notes: Ascagilis is characterised by semi-immersed or superficial ascomata, numerous cellular, hyaline, thin pseudoparaphyses, obclavate, broadly or narrowly cylindrical asci anduniseptate, brown ascospores. Hyde and Wong (1999) transferred the type species A. bipolaris to Jahnula based on the fusiform to ellipsoidal ascospores with bipolar pads hence Ascagilis was not used for long time. Hyde et al. (2013) did not consider Ascagilis in their monograph of Dothideomycetes. Hyde et al. (2013, 2017, 2019), Huang et al. (2018) and Dong et al. (2020) showed that Jahnula is polyphyletic. In the phylogenetic analysis of Dong et al. (2020) based on LSU, SSU and ITS sequence data A. bipolaris and six other species are phylogenetically distant from Jahnula s. str.. Dong et al. (2020) also reported that other species of Ascagilis such as A. submersa and A. thailandensis differ from Jahnula sensu stricto in having a refractive mucilaginous pad at each end which is lacking in members of Jahnula sensu stricto. The mucilaginous pad of ascospores is a morphological character unique to Ascagilis. Dong et al. (2020) resurrected Ascagilis to accommodate seven species based on morphology and phylogenetic evidence. Ascagilis is morphologically and phylogenetically a distinct genus in Aliquandostipitaceae.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Ampelomyces
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum