Capnodiales » Teratosphaeriaceae


Parapenidiella Crous & Summerell, in Crous et al., Persoonia 29: 185 (2012)

Index Fungorum number: IF 801783; Facesoffungi number: FoF 07024, 2 morphological species (Species Fungorum 2021), 2 species with molecular data.

Saprobic or pathogenic on leaves. Sexual morph: Unknown. Asexual morph: Mycelium consisting of branched, septate, smooth sub hyaline to pale brown hyphae. Conidiophores macronematous, occasionally micronematous; macronematous conidiophores arising from superficial mycelium, solitary, erect, pale brown, thin-walled, smooth to finely verruculose; terminally penicillate, unbranched in terminal part; conidiogenous apparatus composed of a series of conidiogenous cells and/or ramoconidia. Conidiogenous cells integrated, terminal or intercalary, unbranched, pale brown, smooth, tapering to a flattened or rounded apical region, mono- or polyblastic, sympodial, giving rise to a single or several sets of ramoconidia on different levels; with relatively few conidiogenous loci, slightly thickened, slightly darkened. Conidia in branched acropetal chains. Ramoconidia 0–1-septate, pale brown, smooth, thin-walled, fusoid-ellipsoidal to subcylindrical. Conidia subcylindrical, fusoid to ellipsoid-ovoid, aseptate, pale olivaceous to pale brown, smooth, thin-walled, catenate; hila truncate, slightly thickened, somewhat darkened (Adapted from Crous et al. 2012).


Type species: Parapenidiella tasmaniensis (Crous & M.J. Wingf.) Crous


Notes: Parapenidiella forms a lineage between Devriesia (Seifert et al. 2004) and Penidiella (Crous et al. 2007), which are known to be paraphyletic. Parapenidiella resembles Devriesia and Penidiella in having Teratosphaeria-like teleomorphs (Crous et al. 2008, 2012). Parapenidiella differs from Penidiella and Devriesia in having pale brown, unbranched, penicillate conidiophores, with olivaceous to pale brown, branched conidial chains. Parapenidiella can be differentiated from similar genera based on DNA sequence data, is phylogenetically distinct and well-supported genus in Teratosphaeriaceae. Molecular markers available for Parapenidiella are ITS, LSU, Actin, RPB2 and TEF-1.


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