Schenckiella
Schenckiella Henn., Bot. Jb. 17: 523 (1893).
Index Fungorum number: IF 4885; Facesoffungi number: FoF 06743, 1 morphological species (Species Fungorum 2022), no molecular data available.
Epiphytes, forming blackened, web-like areas. Superficial hyphae abundant, black, branching at acute angles, appressoria not apparent. Sexual morph: Thyriothecia solitary, scattered or gregarious, superficial in hyphae, easily removed from the host surface, circular, dark brown to black, opening with star-like fissures. Hamathecium comprising hyaline or brown, septate, hypha-like, pseudoparaphyses, constricted at the septum and separate asci. Asci 8-spored, bitunicate, fissitunicate, clavate, oblong or widely cylindrical, with a knob-like pedicel, apically rounded, with ocular chamber, not staining blue in IKI, asci vertically orientated in the thyriothecia. Ascospores fasciculate, elongate-clavate, hyaline when immature, becoming reddish-brown to dark brown at maturity, 4–5- septate, strongly constricted at the septum, apical cell larger and size of cells gradually decreasing to the basal cell. Asexual morph: Unknown (adapted from Hongsanan et al. 2014).
Type species: Schenckiella marcgraviae Henn.
Notes: Schenckiella is characterised by a unique combination of characters, such as non-appressoriate surface hyphae, Asterina-like thyriothecia, elongated clavate asci, brown pseudoparaphyses and 4–5-septate brown ascospores. Schenckiella resembles Parasterinopsis in having 4–5-septate brown ascospores but differs in lacking appressoria. Schenckiella lacks molecular data. Schenckiella is considered to be in Asterinaceae but molecular data is needed to confirm this relationship.
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