Lasiodiplodia subglobosa

Lasiodiplodia subglobosa A.R. Machado & O.L. Pereira, in Machado, Pinho & Pereira, Fungal Diversity 67(1): 241 (2014)

MycoBanK: MB804870


Etymology: in reference to frequent form of conidia.

Mycelium immersed or superficial, branched, septate, dark brown. Conidiomata pycnidial, stromatic, immersed or super- ficial, separate or aggregated, globose, dark brown, uni- or multilocular, often covered by aerial mycelium, formed superficially on twigs of pinus or corn straw in culture. Wall dark brown, thick-walled textura angularis, paler and thinner towards the conidiogenous region. Conidiophores absent. Conidiogenous cells holoblastic, determinate, discrete, cylin- drical, hyaline, smooth and thin-walled, formed from cells lining the inner pycnidial walls, 8 − 18 × 3 − 4.5 μm. Paraphyses hyaline, cylindrical, aseptate, not branched, ends rounded, up to 41 μm long, 2 − 3 μm wide. Conidia acrogenous, ovoid to subglobose, hyaline when young, later becoming medianly one-septate, dark brown, thick- walled, frequently with rounded apices, sometimes truncate base, 16−23× 11−17 μm and longitudinal striations.

Habitat: On Jatropha curcas


Known distribution: Minas Gerais state


Material examined: BRAZIL, Jaíba, Minas Gerais, Collar and root rot of J. curcas, 2011, A. R. Machado & O. L. Pereira (VIC39112 holotype; culture ex-type CMM3872).