Pleosporales » Melanommataceae

Marjia

Marjia Wanas., Gafforov & K.D. Hyde, in Wanasinghe et al., Fungal Diversity: 10.1007/s13225-018-0395-7, [85] (2018).

Index Fungorum number: IF 554155; Facesoffungi number: FoF 03996, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.

Saprobic in terrestrial habitats. Sexual morph: Ascomata superficial, solitary, scattered, broadly oblong, dark brown to black, coriaceous. Peridium thick, multi-layered, outer layer heavily pigmented, comprising dark brown to black cells of textura angularis, inner layer composed of hyaline cells of textura angularis. Hamathecium comprising numerous, filamentous, branched, septate, pseudoparaphyses. Asci 4–8-spored, bitunicate, fissitunicate, cylindrical, pedicellate, thick-walled at the apex, with minute ocular chamber. Ascospores uniseriate, sometimes overlapping, muriform, ellipsoidal to subfusiform, slightly curved, upper part wider than the lower part, 5–7 transversely septate, with 1–2-vertical septa, initially hyaline, becoming brown at maturity, with narrowly rounded ends, with a thick mucilaginous sheath. Asexual morph: Unknown (adapted from Wanasinghe et al. 2018).

 

 Type species: Marjia tianschanica Wanas., Gafforov & K.D. Hyde

 

Notes: Marjia is unique in having superficial, broadly oblong, dark brown to black ascomata, filamentous, branched, septate, pseudoparaphyses, cylindrical to cylindric-clavate, long pedicellate asci and ellipsoidal to subfusiform, brown, muriform ascospores. Molecular markers available for Marjia include LSU, SSU, ITS and TEF-1.

 

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