Spinulosphaeria Sivan., Trans. Br. mycol. Soc. 62(1): 5 (1974)
Index Fungorum number: IF5149; 2 morphological species (Species Fungorum 2020), 1 species with sequence data.
Type species – Spinulosphaeria thaxteri (Pat.) Sivan.
Notes– Spinulosphaeria, typified by Spinulosphaeria thaxteri, was established by Sivanesan (1974) and has tuberculate ascomata, clavate asci and subglobose to ellipsoid ascospores. The second species, Spinulosphaeria nuda is characterized by tuberculate ascomata and verrucose ascospores with mucilaginous sheath (Mugambi & Huhndorf 2010). Phylogenetic analysis of LSU sequence data of S. nuda reveals that Spinulosphaeria is related to Chaetosphaerellaceae and Nitschkiaceae (Mugambi & Huhndorf 2010). Spinulosphaeria is closely related to Crassochaeta and Chaetosphaerella within Chaetosphaerellaceae.