Сypripedium guttatum Sw. in the Komi republic

The point set contains data on the distribution of Cypripedium guttatum Sw. (Orchidaceae) in the Komi Republic. C. guttatum is the most widely distributed slipper orchid and the only species present in both the Old and the New World. It ranges from easternmost Europe (Urals) across Siberia to Sakhalin, north-east China, Korea, Japan, and on to north-west America; it is also present in India, Nepal, Bhutan and south-west China (Sichuan, Tibet and Yunnan) (Cox et al., 1997; Cribb, 1997). The Komi Republic presents its north-western distribution limit. This calciphilous plant grows in coniferous and mixed forests, often in boggy forests, in lowland and transitory bogs, on forested rocks and slide lime rocks (Teteryuk, Kirillova, 2011). Flowering is in June. Fruiting is in July-August. The species is characterized by vegetative and seed reproduction. Pollinators of C. guttatum in the Komi Republic are bees – Lasioglossum calceatum and L. brevicorne (Kirillova et al., 2017). Cypripedium guttatum is a perennial summer-green herbaceous plant. The rhizome is long, branching, up to 0.3 cm in diameter. Its annual increase is up to 7 cm in swamps and 2 cm in rocks (Teteryuk, Kirillova, 2011). Aboveground shoots are 10–30 cm long with two elliptical or ovate- elliptical leaves, 7–10 cm long and 4–5 cm wide. The number of flowers is one. The flowers are white-colored, with large violet-pink confluent spots. Labellum is shoe-shaped, about 2 cm long. The upper segment of the outer perianth whorl is ovate, acuminate, 2–3 cm in length, with violet-pink spots. The two side segments of the inner perianth are about 2 cm long, elongated, white, bare, with big violet-pink spots. The point set was prepared with data obtained as a result of field studies of the authors, data published in scientific literature and acquired from vascular plant collection of SYKO herbaria. The research was supported by Project N 18-4-4-23 (АААА-А17-117121270031-2) of Ural Branch of Russian Academy of Sciences Complex Programme "Genetic diversity of rare species at the Northeast European Russia: inventorying and forecast of their stability under the climate changes"