RESUMEN

Three new species of loculoascomycetes collected from freshwater habitats in North America are described as new species of Jahnula (Jahnulales, Dothideomycetes). All three share these morphological features: hyaline to blackish translucent, membranous ascomata with subtending, wide, septate brown, spreading hyphae; peridia composed of large angular cells; hamathecium of septate pseudoparaphyses; 8-spored, clavate to cylindrical asci; and 1-septate, broadly fusiform, brown, multiguttulate ascospores. Four additional species, J. aquatica, J. bipolaris, J. potamophila, and J. seychellensis, are reported for the first time from the western hemisphere.

Asunto(s)

Ascomicetos/clasificación , Agua Dulce/microbiología , Ascomicetos/aislamiento & purificación , Ascomicetos/fisiología , Ascomicetos/ultraestructura , América Central , Hifa/ultraestructura , América del Norte , Especificidad de la Especie , Esporas Fúngicas/fisiología , Esporas Fúngicas/ultraestructura