Pleosporales » Lophiostomataceae

Guttulispora

Guttulispora Thambug., Qing Tian & K.D. Hyde, in Thambugala et al., Fungal Diversity: 10.1007/s13225-015-0348-3, [22] (20

Index Fungorum number: IF 551238; Facesofungi number: FoF 00804

Etymology: In reference to its guttulate ascospores.

Saprobic on dead branches in terrestrial habitats. Sexual morph: Ascomata solitary or scattered, immersed, coriaceous to carbonaceous, dark brown to black, globose to subglobose, ostiolate. Ostiole central, papillate, with a small crest-like apex and an irregular pore-like opening, plugged by gelatinous tissue, made up of lightly pigmented, pseudoparenchymatous cells. Peridium composed of a single stratum with dark to reddish-brown, thick-walled cells of textura angularis, cells towards the inside lighter, at the outside, darker, somewhat compressed, fusing and indistinguishable from the host tissues. Hamathecium comprising 1–2 μm wide, septate, branched, cellular pseudoparaphyses, situated between and above the asci, embedded in a gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, cylindrical, short pedicellate, apically rounded with an ocular chamber. Ascospores uniseriate, partially overlapping, hyaline when immature and becoming brown when mature, ellipsoid to fusiform, 3-septate, constricted at each septum, upper part slightly wider, guttulate at each cell, lacking a mucilaginous sheath. Asexual morph: Undetermined.

Type species: Guttulispora crataegi Qing Tian, Thambugala, Camporesi & K.D. Hyde

 

References:

 

Thambugala KM, Hyde KD, Tanaka K, Tian Q et al. 2015 Towards a natural classification and backbone tree for Lophiostomataceae, Floricolaceae, and Amorosiaceae fam. nov. Fungal Diversity. 74, 199266.

 

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