Zelosatchmopsis Nag Raj, in Saikawa, Castañeda Ruiz, Kendrick & Nag Raj, Can. J. Bot. 69(3): 633 (1991)
Ascomycota, genera incertae sedis
Saprobic on fallen leaves of Guazuma ulmifolia (Sterculiaceae). Sexual morph: undetermined. Asexual morph: Conidiomata brown to dark brown, scattered to gregarious or confluent, superficial, sessile, cupulate to infundibuliform, unilocular, glabrous. Conidiomatal wall one-cell thick, composed of pale brown to brown cells of textura prismatica in most of conidiomata, becoming vertically elongated almost parallel cells in the uppermost layer. Conidiophores reduced to conidiogenous cells. Conidiogenous cells hyaline, enteroblastic, phialidic, doliiform to lageniform, arising only from the basal wall or all around the cavity of conidiomata. Conidia hyaline, fusiform to falcate, with an acute apex and a narrowly truncate base, usually curved, 1-septate, bearing single hyaline, cellular, excentric, unbranched, attenuated, basal appendage.
Type species: Zelosatchmopsis sacciformis (R.F. Castañeda) Nag Raj & R.F. Castañeda, in Saikawa, Castañeda Ruiz, Kendrick & Nag Raj, Can. J. Bot. 69(3): 633 (1991)
Notes: Zelosatchmopsis is a monotypic genus. The cupulate to infundibuliform, glabrous conidiomata in Zelosatchmopsis closely resembles Infundibulomyces (Chaetosphaeriaceae, Chaetosphaeriales, Sordariomycetes) and Satchmopsis (Cochlearomycetaceae, Leotiales, Leotiomycetes) (Wijayawardene et al. 2017, Ekanayaka et al. 2019). However, Zelosatchmopsis possesses fusiform to falcate, 1-septate conidia bearing a basal appendage, which differs from the cylindrical, 0–1-septate conidia bearing two appendages at each end in Infundibulomyces and cylindrical or acerose, unicellular conidia in Satchmopsis (Nag Raj 1993, Plaingam et al. 2003, this study). The conidiophores of Zelosatchmopsis are reduced to conidiogenous cells, while they are present in Infundibulomyces and Satchmopsis. No molecular data is available for Zelosatchmopsis sacciformis. The taxonomy of Zelosatchmopsis needs further investigation based on fresh collections and phylogenetic inferences.
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