Claviceps purpurea (Fr.) Tul.
ergot
Clavicipitaceae

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

Photograph

© Michael Beug     (Photo ID #16848)


Map

E-Flora BC Static Map

Distribution of Claviceps purpurea
Click here to view the full interactive map and legend

Species Information

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)

Synonyms

Synonyms and Alternate Names:
Tulostoma tuberculatum V.S. White