To the ecology of a new species Juglans from Primorsky krai

Abstract

This paper describes the ecology of a new species of walnut (Juglans) from Primorsky Krai. Critical features of morphology, biology and distribution are given, its contrast with J. mandshurica is substantiated, it is indicated that J. pseudoailanthifolia Urussov, Lobanova, sp. nov. is promising for introduction into landscape plantings on the shores of Primorye, the Tatar Strait (Khabarovsk Territory, Sakhalin Region) and the North-West of Russia. The range of the genus Juglans in Primorye and the Far East (FER) as a whole, as well as in the RFE, has been specified. A comparative characteristic of the morphological and biological features of the newly discovered species with other types of nuts of the Far East was carried out. The hereditary stability of critical traits is substantiated in the systematic and ecological-phytocenotic terms. Biology and economic importance are analyzed and it is proposed to use the species as a genetic and introduction material. The general range of nuts of the Far East was determined as a result of adaptation to the macroclimates of the Paleogene and Neogene.