Rock Outcrops in the South-East Part of West Siberian Plain as the Northern Limit of Distribution and Refuge of Rare Mosses
O. Yu. PISARENKO
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: мхи, бриофлора, петрофиты, редкие виды, Западная Сибирь, скальные обнажения, mosses, bryoflora, petrophytes, rare species, West Siberia, rock outcrops
Abstract
Foothill plains along the northwest periphery of the Altai-Sayan mountain area are the northern limit of stony substrates in the West Siberia longitudinal sector. Rock outcrops in this area are rare; their yardage usually does not exceed a few tens of square meters. Despite negligible areas, the rocky outcrops keep nearly half of the foothill moss flora. Twenty six from recorded on rock outcrops of the foothill plaints moss species (22 %) are rare both in West Siberia and in neighboring south mountains. An annotated list of species is given. The features of the species distribution in the longitudinal sector of West Siberia are discussed.
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