Hypoxylon cercidicolum (Berk. & M. A. Curtis ex Peck) Y.-M. Ju & J. D. Rogers

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

NOTES

Petrini and Candoussau (1983) assigned the anamorph to the genus Hadrotrichum Petrini & Cand., as H. pyrenaicum Petrini & Cand.

Cooke (1883b, p. 136), while publishing H. discoideum Cooke, attached no. 1346 of Saccardo's Sylloge Fungorum. This number in Saccardo (1882a, p. 356) represents H. suborbiculare Peck. Apparently, Cooke purposely introduced a nomenclatural substitute for Peck's H. suborbiculare because it is a later homonym of the Welwitsch and Currey species. Ellis and Everhart's H. discoideum is a later homonym of Cooke's.

Miller (1961) considered this fungus to be H. rubiginosum. Pouzar (1972) had meticulously compared the teleomorphic differences of H. cercidicolum [as H. moravicum] and H. rubiginosum. The distinction between these two taxa is further strengthened by the differences in the cultural and anamorphic features.

This fungus is highly associated with Fraxinus as stressed by Pouzar (1972) [as H. moravicum]. Its discoid stromata encircled by the ruptured host tissue are diagnostic.