Based on the bio-bibliographic essays by Konstantin I. Meyer (1881–1965), head of the Chair of Morphology and Systematics of Higher Plants (1929–1931 and 1938–1963) and director of the Botanical Garden of Moscow University (1940–1948), the article traces the formation evolution of the Moscow School of Plant Morphologists, founded by Ivan N. Gorozhankin, who headed the Chair of Plant Morphology and Systematics (1875–1904) and the Botanical Garden of Moscow University (1874–1902). The diversification of scientific issues in line with the comparative morphological research direction developed by this scientific school in Russian botany is shown on the basis of the works of Gorozhankin’s most famous students. 2024 marks the 120th anniversary of the death of I.N. Gorozhankin (1848–1904) and the 160th anniversary of the birth of Mikhail I. Golenkin (1864–1941), his successor at the chair and in the Botanical Garden.

2024 marks the 140th anniversary of the beginning of the expeditions of the laboratory of the Botanical Garden of Moscow University under the supervision of Professor Ivan Nikolaevich Gorozhankin to study the Central Russian flora. The historical and scientific context of the studies of this traditional object for the Botanical Garden of Moscow University during the 18th – early 21st centuries is traced. It is shown how the long-term targeted field research by the staff of the laboratory of the Botanical Garden has contributed to a methodologically unified approach to the organization of the program for studying the flora of the Oka River basin allowed not only to expand the territorial coverage, going beyond the purely Moscow region, but also to significant contribute to the development of an important scientific problem, namely, the cognition of the phenomenon of the Oka River flora. Gorozhankin’s principle of systemic research of regional flora was successfully implemented at the end of the 20th century by scientists of the Botanical Garden of Moscow University in the study of the flora of Central Russia.

The article, based on materials from the Moscow State University Archives, examines the activities of the Botanical Garden of Moscow University during the Great Patriotic War (1941–1945). Using a systematic approach, the article traces changes in the main parameters of the Botanical Garden’s structural and functional organization under the influence of adverse external factors. It is shown how, in the context of the crisis caused by the war, which led to a shortage of resources for scientific activities, the areas of research and educational work were transformed, and the composition and structure of the Botanical Garden’s plant collections, as well as the number and organizational structure of its scientific and auxiliary staff, changed. Special attention is paid to the personality of K.I. Meyer, who headed the Botanical Garden in 1940–1948.

The article reviews the activities of the famous botanist Mikhail I. Golenkin (1864–1941) as an organizer of Russian science. Honored Professor of Moscow University (1916), Honored Scientist of the RSFSR (1929), M.I. Golenkin headed the Department of Plant Morphology and Systematics for many years (1904–1918; in 1918–1929 – Department of Plant Morphology and Systematics of higher plants) of Moscow University and its Botanical Garden (1902–1930), at the same time (1922–1931) he was director of the Research Institute of Botany of the Association of Research Institutes at the Faculty of Physics and Mathematics of Moscow University. Professor Golenkin was an honorary member of the Russian Botanical Society and the Moscow Society of Naturalists (since 1921), Vice–president of the MSN (1930–1932). 2024 marks the 160th anniversary of Prof. M. I. Golenkin’s birth.