[Leptosphaeria (?) senegalensis, Segrétain, Baylet, Darasse et Camain. Perithecia and asci. II. Asci and ascospores].
The ascal wall of Leptosphaeria senegalensis typically belongs to the bitunicate type; in its fin al state it comprises an exoascus separated from the endoascus by a clear space. The three-layered endoascus is formed of fibrillae whose most internal are accordion-like folded. The ascospores have a complex wall; from the interior to the exterior it comprises: an endospore, an irregularity thickened epispore, a perispore, and an ectospore thickened in a cap at the posterior end of the spore. The comparison of ascospores of two "real" Leptosphaeria (L. acuta et L. maculans) with those of L. senegalensis shows that the latter species must no longer be included in the genus Leptosphaeria.
D001203:Ascomycota / Q000648:ultrastructure*; D008854:Microscopy, Electron; D013098:Xylariales / Q000648:ultrastructure*
Les périthèces et les asques du Leptosphaeria (? Senegalensis Segretain, Baylet, Darasse et Camain. II. Les asques et les ascospores.