Nemania confluens (Tode : Fr.) Læssøe & Spooner
TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES
NOTES
Stromata of this fungus usually have the lower 1/2 to 1/3 buried in wood. Like in N. circostoma, the stromatal tissue between the perithecia is scanty, distributed only between the upper part of perithecia. Five specimens were sent to us on loan upon request for the type of S. albicans. L 0112437 (Herb. Lugd. Bat. no. 910,270-63) was considered by Miller (1961) and Petrini & Müller (1986) as the type of Sphaeria albicans, and is accordingly accepted as the lectotype. This specimen, along with L 0112436 and 0112440, has slightly smaller ascospores, (14-)15-17 x 7-8.5 µm, than those of the typical N. confluens specimens and has nearly superficial stromata. It may represent a different taxon than N. confluens. L 0112438 is typical for N. confluens. L 0112439 is probably a loculoascomycete; the ascospores are cylindrical, 29-35 x 10-13.5 µm, warted, dark brown but becoming paler towards the ends, 3-distoseptate. Hypoxylon magellanicum is a probable synonym of N. confluens; it is from southern hemisphere and is associated with Nothofagus. Unlike the carbonaceous stromatal layer in typical N. confluens which extends outward in host substrate, that of H. magellanicum constricts below the perithecia.