Microscopic: spores 100-120 x 1 microns, filiform [thread-like], smooth, colorless, multiply septate when mature; asci 8-spored, 160 x 5 microns, with parallel spores, inamyloid; paraphyses absent, (Breitenbach), spores thread-like, about 100 x 1 microns, parallel in ascus, becoming septate after expulsion; asci very long, about 5 microns wide, narrowly cylindric, apex thick-walled with central pore, (Dennis)
EDIBILITY
poisonous (Lincoff)
Habitat and Range
SIMILAR SPECIES
Claviceps grohii J.W. Groves, whose sclerotia have been found on Carex (sedge) in BC and PQ, produces clubs in laboratory culture with stems up to 1.5cm long and heads up to 0.2cm in diameter, the sclerotium 0.5-1.5cm x 0.1-0.3cm, blackish violet, curved or nearly straight, and usually more or less flattened on one side, (Groves).
Habitat
on damp sclerotia that formed the previous year in the panicles of various grasses, (Breitenbach), singly or in small clusters on fallen sclerotia, (Dennis)