Neotestudina
Neotestudina Segretain & Destombes, C. r. hebd. Séanc.Acad. Sci., Paris 253: 2579 (1961).
Index Fungorum number: IF 3484; Facesoffungi number: FoF 04644, 3 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic isolated from soil. Sexual morph: Ascomata cleistothecial, black, simple or aggregated, scattered, immersed to erumpent or superficial, globose to subglobose. Hamathecium comprising numerous, branched, filiform, hyaline, hyphal-like, septate pseudoparaphyses, embedded in a gelatinous matrix. Asci 8-spored, bitunicate, obovate or nearly sphaerical, apically rounded, pedicellate, thick-walled. Ascospores 1-seriate or crowded, ornamented, glabrous, ellipsoid, brown to pale brown, uniseptate, not darker near the septum, with rounded ends, smooth-walled. Asexual morph: Unknown (adapted from Doilom et al. 2018).
Type species: Neotestudina rosatii Segretain & Destombes
Notes: Neotestudina is characterised by cleistothecial, black, simple or aggregated ascomata, obovate or nearly spherical asci, and 1-seriate or crowded, ornamented, glabrous, ellipsoid, brown to pale brown, uniseptate ascospores. Barr (1990a) referred Neotestudina to Didymosphaeriaceae based on the ascospore morphology. Neotestudina differs from other genera in Testudinaceae in having cleistothecioid and globose ascomata, opening by a split, and broadly truncate ascospores (Barr 1990a). Doilom et al. (2018) re-examined the holotype specimen of N. rosatii from IMI and did not observe a germ pore at each end of ascospores. In the phylogenetic analysis of Kruys et al. (2006), Suetrong et al. (2009) and Wanasinghe et al. (2017), Neotestudina rosatii (CBS 690.82) resides in Testudinaceae. Neotestudina is a distinct and well-defined genus in Testudinaceae. Molecular markers available for Neotestudina are ITS, LSU and SSU.
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