Preservation of fungi in water (Castellani): 20 years.

Five-hundred ninety-four strains of fungi were studied. They were found being preserved with Castellani's method with distilled water during 1 to 20 years. 62% of the strains (n=368) did grow when subcultured and maintained their main morphological features. 90% of the 20 years old strains of different species were viable. It is argued that the technique of introduction of the strains into the water and their optimal condition will determine survival. The Castellani's method is recommended as easy, cheap and satisfactory for preservation of most species of fungi.