Hypoxylon erythrostroma J. H. Miller

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

NOTES

Cultures have been described by Rogers (1982) [as H. gillesii] on PDYA and CMA, but no anamorph was reported. Hypoxylon erythrostroma is one of the few Hypoxylon taxa that is capable of aggregating the conidiogenous structures into coremia.

Hypoxylon erythrostroma was accepted as a synonym of H. jecorinum by Miller (1961). They are different in stromatal surface colors, in ascospore morphology, and in anamorphic morphology. Also compare with H. laschii, H. rutilum, and H. subgilvum.

A New Zealand collection [Auckland, Waitakere Ra., Huia, Parau Tr., 23.10.1980, Samuels, G.J. 80-174, twigs of Coprosma (JDR)] shares most characteristics with H. erythrostroma except for the more restricted growth habit of stromata, the smaller perithecia, ca. 0.2 mm diam, and the larger ascospores, 9.5-11 x 4.5-5.5 mm. It probably represents a variety of H. erythrostroma. Since this collection is small and cultures are lacking, we prefer not to make a formal decision on the New Zealand specimen for the present.