Xylariales » Xylariaceae

Brunneiperidium

Brunneiperidium Daranag., Camporesi & K.D. Hyde, in Daranagama, Camporesi, Tian, Liu, Chamyuang, Stadler & Hyde, Fungal Diversity 73: 221 (2015)

Index Fungorum number: IF 809521; Facesofungi number: FoF 03025

Saprobic on stems. Sexual morph: Ascomata semi-immersed, visible as conical areas, black-dark brown, solitary with black, central, ostiolar canal. Peridium composed of several compressed layers, outwardly comprising thick walled, dark brown cells of textura angularis, lined with loosely arranged, yellowish-brown cells of textura irregularis and inwardly comprising thin-walled hyaline cells of textura irregularis. Paraphyses 4–5 μm diam., numerous, septate. Asci 8-spored, unitunicate, cylindrical, pedicellate, with J+, apical ring bluing in Melzer’s reagent, discoid. Ascospores uniseriate, unicellular, ellipsoidal, brown, mucilaginous sheath present, germ slit present or absent, if present straight and slightly curved at the edges, less than spore length. Asexual morph: Conidiophores simple, hyaline, sometimes dichotomously branched. Conidiogenous cells terminal, single, cylindrical. Conidia hyaline, globose, with thin mucilaginous sheath.

 

Type species: Brunneiperidium gracilentum Daranagama et al., Fungal Diversity 73:222 (2015)

 

Notes: Brunneiperidium was introduced to accommodate two species B. gracilentum Daranagama et al. (type species) and B. involucratum Daranagama et al. with superficial, conical ascomata (Daranagama et al. 2015). The genus has morphological similarities with Nipicola. However, living cultures of Nipicola are not available and the phylogenetic relationship of these two genera is not resolved (Daranagama et al. 2015). Phylogenetic analysis places these species within the Xylariaceae. The asexual morph of this genus is unique for Xylariaceae with dichotomously branched, simple, hyaline conidiophores and hyaline, globose conidia.

 

References:

 

Daranagama DA, Hyde KD, Sir EB, Thambugala KM et al. 2018 Towards a natural classification and backbone tree for Graphostromataceae, Hypoxylaceae, Lopadostomataceae and Xylariaceae. Fungal Diversity 88, 165.

 

 

Last update: 07 August 2021

 

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