Catalogue of Palamocladium euchloron (Müll. Hal.) Wijk et Margad. (Hypnales, Brachytheciaceae) specimens deposited in the State Museum of Natural History NASU, Lviv, Ukraine

The species Palamocladium euchloron (Müll. Hal.) Wijk et Margad. is distributed in Southern Europe (Greece), in the Caucasus, in Asia (Turkey, Iran, Turkmenistan, Pakistan, China). Findings in the Mountainous Crimea: Kirovskyi district, Agarmysh Mt. in the vicinity of the Old Crimea town, Old Crimea; Khapkhal Gorge near the Dzhur-Dzhur waterfall on the East Ulu-Uzen River, Crimean Nature Reserve, upper reaches of the Alma River; Bakhchysaraiskyi district, near the Bakhchysarai town, Sokolyne and Mashyne villages, Chufut-Kale rock . The species is scientifically significant as a relict (tertiary) one. This moss grows on the soil, on shaded limestone rocks and stones in oak and beech forests. The plant is dioecious. In the Crimea it does not form sporogonies and reproduces vegetatively. Palamocladium euchloron (Müll. Hal.) Wijk et Margad. is protected in the Crimean Nature Reserve, Khapkhalskyi hydrological reserve and the Agarmyskyi Forest landmark of nature . The species is recorded for the Staryi Krym vicinity in the work of M.P. Slobodian . The species is given in the study of fossil Pliocene bryoflora for the territory of Poland . Specimens of the Palamocladium euchloron (Müll. Hal.) Wijk et Margad., represented in the SMNH collection, were collected from the territory of the Crimean Peninsular (Bakhchysarai (Slobodian, 1969), Kirovsky district (Slobodian, 1966), Sudak town (Slobodian, 1968), Sokolyne village (Slobodian, 1969), Mashyne village (Slobodian, 1969), Golovkinskyi waterfall (Melnychuk, 1954); from the territory of Krasnodar Krai (Russia) territory were collected in Krasnaia Poliana (Lazarenko, 1937), from the territory of Azerbaijan near Novo-Alekseevka village (Окснер, 1936). The museum collection contains 14 specimens of Palamocladium euchloron (Müll. Hal.) Wijk et Margad. Two specimens are exsiccates (Institutum Botanicum nomine V.L. Komarivii Academiae Scientiarum URSS, 1961). Samples were collected by M.P. Slobodian, V.M. Melnychuk, A.S. Lazarenko, A.M. Oksner. Exsiccates were collected by I.I. Abramov and A.L. Abramova. Most specimens were collected in the second half of the 20th century. The specimens of A.S. Lazarenko and A.M. Oksner belong to the first half of the 20th century. The species has been included into the Red Data Book of Ukraine with conservation status: Rare. This article was written with the support of the National Research Foundation of Ukraine, call 2022.01 «Science for the Recovery of Ukraine in the War and Post-War Periods» the project 2022.01/0013 «Digitization of natural history collections damaged as a result of hostilities and related factors: development of protocols and implementation on the basis of the State Museum of Natural History of the National Academy of Sciences of Ukraine». The contents of this article do not necessarily reflect the views of the National Research Foundation of Ukraine and are the sole responsibility of the State Museum of Natural History, NAS of Ukraine.