Raja H A, Shearer C A
Department of Plant Biology, University of Illinois, Room 265 Morrill Hall, 505 South Goodwin Avenue, Urbana, Illinois 61801, USA.
Mycologia. 2006 Mar-Apr;98(2):319-32. doi: 10.3852/mycologia.98.2.319.
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.
从北美淡水生境中采集到的三种新的腔菌纲真菌被描述为 Jahnula 属（座囊菌目，座囊菌纲）的新物种。这三个物种均具有以下形态特征：子囊果透明至黑色半透明，膜质，具基部、宽、具隔膜的褐色、扩展的菌丝；包被由大型角状细胞组成；侧丝由具隔膜的拟侧丝组成；具 8 个孢子，棒状至圆柱形的子囊；以及具 1 个隔膜、宽梭形、褐色、具多个油滴的子囊孢子。另外四个物种，水生 Jahnula、双极 Jahnula、嗜河 Jahnula 和塞舌尔 Jahnula，首次在西半球被报道。
