The genus Cypripedium L. in the unique habitat of orchids in the Novosibirsk Region

This paper provides information about the unique habitat, where 13 species of orchids of the genera Dactylorhiza Nevski, Epipactis Zinn, Gymnadenia R. Br., Herminium R. Br., Orchis L., Platanthera L.C.M. Rich., Cypripedium L. grow in Iskitim District of the Novosibirsk Region. A morphological description of three kinds of shoes is given, including a new for the Novosibirsk Region species Cypripedium × ventricosum Sw., which is proposed to be included in the Red Book of the Novosibirsk Region. The investigated community of shoes is located in a birch-high-herbage forest, in the Koyniha river basin. Comparison of the characteristics of the vegetative and generative organs Cypripedium x ventricosum Sw., Cypripedium calceolus L. and Cypripedium macranthon Sw, described as a result of monitoring, is compared with literary data. It was shown that all parameters of C. calceolus, except for the bract length (greater than average), are included in the described range. In the studied habitat, most of the parameters of C. macranthon and C. × ventricosum (the length and width of the bract, the length and width of the lateral leaf of the perianth of the inner circle) have higher values. It allows us to conclude that the eco-cenotic conditions of the studied habitat are most favorable for C. macranthon and C. × ventricosum. Cenopopulations of all three species exist for a fairly long period and are in their real optimum.