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Phytosociological characteristics of forests of grey alder (Alnus incana /L./ Moench) in Gorski kotar

The paper presents vegetation research of grey alder stands (Alnus incana /L./ Moench) along the beds of the rivers Kupa, Kupica, Čabranka and Belica in Gorski kotar. The standard Central European phytosociological method was used to record and analyze eight phytosociological relevés from 2010. Research results revealed that it was the association of grey alder with deadnettle, Lamio orvalae-Alnetum incanae, recently recorded in the west of Slovenia (DAKSKOBLER, 2007, 2010). Growing under similar ecological conditions and containing common diagnostic species as the Slovenian stands, the stands in Gorski kotar are characterized by the abundant presence of Helleborus dumetorum. For this reason, they have been classified as a new geographic variant of the above mentioned association.

Alnus incana (L.) Moench; phytosociological characteristics; Lamio orvalae-Alnetum incanae Dakskobler 2010 var. geogr. Helleborus dumentorum var. geogr. nova hoc loco; Gorski kotar; Croatia

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