Isolates of the snow mold fungus Typhula incarnata from Radzików, Blonie, near Warsaw in Poland formed many small-sized sclerotia (< 1 mm) at 0°C. This phenomenon was not observed in other isolates from different locations that have regions with annual snow cover. The formation of small-sized sclerotia by Polish isolates decreased with rising temperature, but the formation of large-sized sclerotia increased.
Hoshino T., Prończuk M., Kiriaki M., Yumoto I. (2004): Effect of temperature on the production of sclerotia by the psychrotrophic fungus Typhula incarnata in Poland. – Czech Mycology 56(1-2): 113–120.