Microscopic: spores 11.5-15.5 x 4-8 microns, ovate, apiculus slight; basidia 4-spored, 31-39 x 6-8 microns; hyphae of head and stem incrusted; cortex of sclerotium composed of single or double layer of agglutinated hyphae with fairly wide lumen, cuticle 7-12 microns thick reddish brown, medulla composed of free interwoven incrusted hyphae
Habitat and Range
SIMILAR SPECIES
Typhula gyrans is said to occur on Brassica stems in Europe.
Habitat
on roots of Brassica campestris, and leaves and rhizomes of Iris, (Corner), on turnips in BC, on leaves and rhizomes of iris in ON, (Remsberg)