Key Number 3, Characteristic Fungal Structures

Sclerotia present on leaf tissue

  • Generally smaller then 1mm, loosely attached to the leaf, and usually dark brown to black in color

    (Typhula ishikariensis)

  • Generally larger then 1mm, embedded in leaf tissue, and orange to brown in color

    (Typhula incarnata)

Mushroom growing in a ring or arc

  • Mushrooms can be of several different types, grass around the ring or arc, may be enhanced, dead, or not affected

    (Basidiomycete spp.)

Sclerotia of T. ishikariensis
(Space between lines is 1mm)
Sclerotia of T. incarnata
(Space between lines is 1mm)