The author surveys records of Chroogomphus helveticus (Sing.) Mos. in Czechoslovakia, a rare species initially described as a variety of Gomphidius viscidus by A. Pilát in 1926. Later recognized as a distinct species, its taxonomy is clarified based on new and herbarium specimens. Comparisons with similar species from Europe and Asia are included.
Kuthan J. (1973): Chroogomphus helveticus (Sing.) Mos. in der Tschechoslowakei (Farbtafel Nr. 84). – Česká Mykologie 27(4): 229–235.