Diaporthales » Erythrogloeaceae

Erythrogloeum

Erythrogloeum Petr., Sydowia 7(5-6): 378 (1953)

Facesoffungi number: FoF 07364

Sordariomycetes, Sordariomycetidae, Diaporthales, Erythrogloeaceae

 

Parasitic on the host plant. Sexual morph: undetermined. Asexual morph: Conidiomata brown, stromatic, acervular, solitary, subepidermal, immersed to erumpent, subglobose, unilocular, glabrous. Ostiole absent, rupturing by means of irregular splits. Conidiomatal wall composed of thin-walled, pale brown cells of textura angularis in the base, appearing dark brown to black at the side. Conidiophores formed from the inner cells of conidiomata, reduced to conidiogenous cells. Conidiogenous cells hyaline, enteroblastic, phialidic, lageniform to cylindrical, discrete, determinate, smooth-walled, with periclinal thickenings at channel wall. Conidia hyaline, ellipsoid to ovoid, rounded at the apex, narrow and truncated at the base, unicellular, smooth-walled, guttulate or aguttulate (Sutton 1980, Crous et al. 2012a).

 

Type species: Erythrogloeum hymenaeae Gonz. Frag. & Cif. ex Petr., Sydowia 7(5-6): 379 (1953)

 

Notes: Two species were accepted in Erythrogloeum, namely E. hymenaeae (generic type) and E. pini-acicola H.C. Evans (Sutton 1980, Evans 1984), of which E. hymenaeae is a well-known pathogen of Hymenaea spp. in South America (Petrak 1953, Ferreira et al. 1992). The phylogenetic position of Erythrogloeum is rather obscure although Crous et al. (2012a) designated an epitype for E. hymenaeae, and placed Erythrogloeum in Diaporthales based on ITS and LSU sequence data. The sexual morph of Erythrogloeum is undetermined.

 

Distribution: Brazil, Costa Rica, Dominican Republic, Nicaragua (Sutton 1980, Crous et al. 2012a).