Rhagadolobiopsis
Rhagadolobiopsis Guatim. & R.W. Barreto, Mycologia 106(2): 277 (2014).
Index Fungorum number: IF 802297; Facesoffungi number: FoF 08120, 1 morphological species (Species Fungorum 2022), no molecular data available.
Parasitic on host. Sexual morph: Ascomata multiloculate, opening by radiating fissures, connected to host tissue at several points by mycelial columns formed through the stomata. Hymenial gel not reacting with iodine. Interascal tissue absent. Asci bitunicate, cylindrical-clavate to clavate, non-amyloid, 8-spored. Ascospores fusiform, aseptate, hyaline, smooth. Asexual morph: Unknown (adapted from Guatimosim et al. 2014).
Type species: Rhagadolobiopsis thelypteridis Guatim. & R.W. Barreto
Notes: Rhagadolobiopsis is characterised by multiloculate ascomata, opening by radiating fissures, cylindrical-clavate to clavate asci and fusiform, aseptate, hyaline ascospores. Rhagadolobiopsis resembles Parmularia in having an ascomata with an irregular shape that becomes circular, with radiating locules formed within a shield-like structure (Inacio and Cannon 2008). Rhagadolobiopsis also resembles Cocconia, Cycloschizon, Cyclostomella, Ferrarisia, Hysterostomella and Parmularia in having superficial ascomata but can be differentiated based on asci and ascospore characters (Inacio and Cannon 2008). Rhagadolobiopsis is also similar to Inocyclus, Pachypatella, Polycyclus and Polycyclina in having a parasitic lifestyle on ferns but can be differentiated based on the shape and size of the ascospores. Inocyclus has ascospores composed of cells of unequal size, Pachypatella has ascospores composed of cells of equal size, Polycyclus has ascospores composed of cells of unequal size with the internal stroma well developed while Rhagadolobiopsis has fusiform, aseptate, hyaline ascospores. Rhagadolobiopsis is treated as a distinct genus in Parmulariaceae but molecular data is required to confirm this taxonomic placement.
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