From the group of smooth-spored Inocybe with pruinose stipe only in the upper part, section Fibrillosae Heim (Inocibium apud Singer stirps 3: "stipe pruinose in upper portion"), we present the critical I. flocculosa sensu orig., and four similar species: I. deglubens (Fr.) Gill., I. gausapata Kühner, I. pallidipes Eil. et Everh. and I. subtigrina Kühner. All these species have been carefully lectotypified based on our own findings and field observations.
Stangl J., Veselský J. (1977): Inocybe flocculosa (Berk.) Saccardo und die Verwandten (Beiträge zur Kenntnis seltenerer Inocyben. Nr. 10) (Farbtafel Nr. 91). – Česká Mykologie 31(1): 15–27.
