GEODATA OF THE MOSCOW UNIVERSITY HERBARIUM: DATA STRUCTURE AND GEOREFERENCING METHODICS

Digitisation of the Moscow University Herbarium (MW) was started in the spring of 2015. Since October 2016, we have been publishing the images of specimens on the portal of the Moscow Digital Herbarium (https://plant.depo.msu.ru/) in open access mode. Gradually, we started to publish extended metadata on our portal, like full transcriptions of labels and georeferences, i.e. the coordinates of collection sites for each specimen. As of January, 14, 2023, two thirds of the specimens of the Moscow University Herbarium (693168 specimens, or 66%) are georeferenced, while 359593 specimens are still in work. The article describes the geodata of the Moscow University Herbarium both in the geographical aspect (data coverage for different regions) and in the aspect of georeferencing accuracy. General guidelines for georeferencing herbarium collections are given.