Jahnula species from North and Central America, including three new species.
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.
Raja
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Department of Plant Biology, University of Illinois, Room 265 Morrill Hall, 505 South Goodwin Avenue, Urbana, Illinois 61801, USA. raja@life.uiuc.edu
Shearer
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D001203:Ascomycota / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology / Q000648:ultrastructure; D002489:Central America; D005618:Fresh Water / Q000382:microbiology*; D025301:Hyphae / Q000648:ultrastructure; D009656:North America; D013045:Species Specificity; D013172:Spores, Fungal / Q000502:physiology / Q000648:ultrastructure