Leucosphaerina Arx, Persoonia 13(3): 294 (1987)
MycoBank number: MB 26159; Index Fungorum number: IF 26159; Facesoffungi number: FoF 13425; 2 morphological species (Species Fungorum 2020), 1 species with sequence data.
Type species – Leucosphaerina indica (Arx, Mukerji & N. Singh) Arx
Notes – Leucosphaerina was introduced by von Arx (1987) based on L. indica from dung of Boselaphus tragocamelus in Delh, but lacks sequence data. Malloch (1989) introduced L. arxii fungi from dung of Equus in North Carolina. Summerbell et al. (2011) provided sequence data for L. arxii. The genus is characterized by clavate asci, ellipsoidal, hyaline ascospores with sheaths, and an acremonium-like asexual morphs with solitary or paired tapering conidiogenous cells, septate at the base, bearing small apical clusters of conidia, conidia are ellipsoidal to obovate, hyaline, 1-celled and produced in wet masses (von Arx 1987, Malloch 1989).
Figure 170 – Leucosphaerina arxii (redrawn from Malloch 1989). a Ascomatal initials. b Ascomata (surface view at left, cross section at right). c Developing asci. d Mature asci. e Ascospores. f Conidiogenous cells. g Conidia. Scale bars: b = 40 µm, a, c-g = 10 µm.