FINDS OF TWO SPECIES OF THE GENUS ERITRICHIUM (BORAGINACEAE) IN EASTERN SIBERIA
Svetlana V. Ovchinnikova1, Nadezhda V. Stepantsova2
1Central Siberian Botanical Garden SB RAS, Novosibirsk, Russia
2Irkutsk State University, Irkutsk, Russia
Keywords: Boraginaceae, Eritrichium, new locations, diagnostic features, ecological characteristics, range, endemic, nomenclature, Irkutsk Region, Trans-Baikal Territory, Eastern Siberia
Abstract
Data on the new species Eritrichium jenisseense Turcz. ex A. DC. for the flora of Eastern Siberia are presented. New localities were discovered in the Irkutsk Region and Zabaikalsky Krai, significantly expanding the range of this endemic species to the east. During field studies in 2018 and 2025, populations of the endemic Severobaikal-Lena species E. baicalense Popov ex Ovczinnikova were discovered in the south of the Irkutsk region. A full characterization of the species: diagnostic characters, relationships, ecological characteristics, and range are indicated, as well as nomenclatural information and data on type specimens are provided. The cited specimens are deposited in the Smirnov Herbarium of Higher Plants of Irkutsk State University (IRKU). It is recommended that these species be included into the “Red Data Book of the Irkutsk Region”, and E. jenisseense in the “Red Data Book of the Trans-Baikal Territory” also.
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