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SUMMARY
For the first time since the days of Peck, his two type specimens, Meliola balsamicola 1881 and Asterina nuda 1885, both collected on Abies balsamea (L.) Mill., have been studied. Results show that these two organisms regarded as synonymous by Saccardo, who studied American specimens of A. nuda, are not only distinct species as Peck stated, but also belong to different genera.
Meliola balsamicola, a little known and rarely collected species on green balsam fir needles, does not belong either to Meliola, or to Dimerosporium where Ellis and Everhart placed it. It belongs to the Perisporiaceae (Phaeodidymae) and probably in the genus Dimerium; additional collections as well as an intensive study of it are needed.
Asterina nuda, a common fungus on dead fir needles, has been investigated extensively abroad for many years. The name preferred for the fungus, the involved synonomy of which is discussed, is Adelopus nudus (Pk.) Hoehn.
New morphological data for both species are given.