Capnodiales » Extremaceae


Paradevriesia Crous, in Crous et al., Fungal Systematics and Evolution 3: 98 (2019).

 Index Fungorum number: IF 829325; Facesoffungi number: FoF 07634, 3 morphological species (Species Fungorum 2022), 3 species with molecular data.

Saprobic on substrate. Sexual morph: Unknown. Asexual morph: Mycelium comprising branched, septate, hyphae, irregular in width, smooth to verruculose, sometimes forming hyphal strands and hyphal coils; hyphae often forming dark brown, thick-walled, intercalary, muriformly septate chlamydospores in culture. Conidiophores macro- and micronematous subcylindrical, medium brown, straight to irregularly curved, septate, or reduced to conidiogenous cells. Conidiogenous cells terminal or lateral on hyphae, medium brown, smooth, guttulate, subcylindrical, mono- to polyblastic; scars somewhat darkened and thickened, but not refractive. Conidia medium brown, guttulate, smooth, in mostly unbranched chains, subcylindrical to narrowly ellipsoidal, septate; hila darkened, somewhat thickened, not refractive (adapted from Crous et al. 2019).


Type species: Paradevriesia americana (Crous & Dugan) Crous


Notes: Paradevriesia is morphologically similar to Devriesia but has different ecology. Paradevriesia species are known from plant and rock surfaces and do not survive at high temperatures while species of Devriesia can be found in soil and are thermotolerant. Paradevriesia is a distinct genus in Extremaceae (= Paradevriesiaceae Crous). Molecular markers available for Paradevriesia are ITS, LSU, SSU, BTUB and RPB2.


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