The department of the Yenisei Siberia (about 42 thousand herbarium sheets). The collection started to build up at the beginning of the twentieth century from materials of P.N. Krylov (1892) from Mirskiy and Aradanskiy ridges, but was not properly documented. During the period of the Resettlement Administration (1912-1914) and later in the Soviet period, the collection of this department has increased repeatedly. It comprises specimens from the vast territory of the Taimyr Peninsula to Sayan highlands, mainly within the administrative boundaries of the Krasnoyarsk krai and the former autonomous territory, and now – the Republic of Khakassia. The basis of the collection consists of materials from numerous expeditions of V.V. Reverdatto, who began the study of the territory as a student at the Tomsk Institute of Technology, and upon becoming a professor at the Tomsk University made 12 expeditions to Krasnoyarsk. His disciples continued collecting materials in this territory – V.P. Golubintseva, Z.I. Tarchevskaya and V.V. Tarchevskiy, V.D. Nashchokin, A.V. Polozhiy and others. M.V. Kuminov and A.V. Kuminova, S.I. Gluzdakov, S.V. Gudoshnikov made wonderful collections from Sayans. A.V. Shumilova, L.I. Obolentsev, A.V. Polozhiy, N.A. Olonov brought significant collections from remote areas of the Evenki National District. Numerous materials have been collected in recent years in the West Sayan, Kuznetsk Alatau and steppe regions of Khakassia by the staff of the P.N. Krylov Herbarium within research and grants. Undergraduate and postgraduate students of the Department of Botany of TSU took part in collecting materials for this department of the Herbarium.