Rostraureum tropicale

Rostraureum tropicale is a pathogen of Terminalia ivorensis and causes basal stem cankers on dying trees.

[1] The fungus displays characteristics typical of diaporthalean fungi, with periphysate ostiolar canals with no paraphyses, and asci are unitunicate with refractive apical rings.

Rostraureum tropicale can be distinguished from Endothia, Cryphonectria and Chrysoporthe by the observation that perithecial necks are not embedded in well-developed stromatic tissue.

[1] Rostraureum tropicale is phylogenetically most closely related to species of Endothia, based on ribosomal (ITS) and β-tubulin DNA sequences.

However, species of Chrysoporthe and Cryphonectria belong to the same superclade and are thus closely related to Rostraureum tropicale.