GLOEOTINIA-TEMULENTA AND GLOEOTINIA-GRANIGENA, 2 DISTINCT SPECIES

Specimens of Gloeotinia temulenta from Germany, Netherlands, Norway, S cotland, and the United States were examined and microanatomical featu res compared with the type specimen of G. granigena from France to det ermine if, as previously suggested, they were conspecific. Microanatom ical examination revealed similar apothecial characteristics between t he two species, but they differed in details of the ascus and ascospor es. The ascus cap of G. temulenta was thicker than that of G. granigen a. Ascospores of G. temulenta were fusoid with bluntly pointed ends, i nequalateral, and slightly depressed on one side while those of G. gra nigena were generally ellipsoidal with rounded ends and equilateral. B romus erectus, on which G. granigena was originally described, was fou nd not to be a host of G. temulenta. These data indicate that G. temul enta and G. granigena represent distinct species of Gloeotinia.