Thyrinula Petr. & Syd., Annls mycol. 22(3/6): 373 (1924).
= Alysidiella Crous, in Summerell et al., Fungal Diversity 23: 325 (2006).
MycoBank number: MB 10218; Index Fungorum number: IF 10218; Facesoffungi number: FoF 06728; 5 morphological species (Crous et al. 2019c), 5 species with molecular data.
Type species: Thyrinula eucalyptina Petr. & Syd., Annls mycol. 22(3/6): 373 (1924)
Notes: Thyrinula is characterized by hysterothecia opening by elongated, longitudinal or Y-shaped slits, and 1-septate ascospores. Its asexual morph Alysidiella was introduced to accommodate a single species with both aseptate and multi-septate conidia. Crous et al. (2019c) provided sequence data of all members of the genus from fresh collections, and synonymized Alysidiella under Thyrinula based on morphology (Fig. 132).
![Picture132](https://www.facesoffungi.org/wp-content/uploads/2022/08/Picture132.png)
Fig. 132 Morphology of Thyrinula spp. (a–d = Thyrinula eucalypti redrawn from Crous et al. 2019c; e–g = Thyrinula parasitica redrawn from Summerell et al. 2006). a Ascomata on lesion surface. b Vertical section through ascomata. c Asci. d Ascospores. e–g Conidiophores and conidia. Scale bars = 10 μm
Species