Applying the standard Central-European method we phytosociologically studied the sites of Pulsatilla vernalis, a rare and protected species of Slovenian flora, in the frost hollows on mountain pastures Ovčarija and Za Grivo in the Fužina pasturelands (the Triglav mountains, the Julian Alps). We established that it grows in a unique community of swards and heaths which usually extends over small surfaces (4-10 m 2 ) and is dominated by herbaceous perennial species (hemicryptophytes) and dwarf shrubs (chamaephytes) with mostly arcticalpine and south-European montane distribution. This community is explicitly (floristically and ecologically) different from the communities of swards and heaths described in the Julian Alps so far, so we classified it into a new association Pulsatillo vernalis-Dryadetum octopetalae ass. nova (order Rhododendro hirsuti-Ericetalia carneae) and subdivided it into two, floristically and ecologically clearly distinguished subassociations -ericetosum carneae subass. nova and -vaccinietosum subass. nova. Key words: Pulsatilla vernalis, Rhododendro hirsuti-Ericetalia carneae, phytosociology, syntaxonomy, frost hollows, the Fužina pasturelands (Fužinske planine), the Julian Alps, Slovenia. IzvlečekPo standardni srednjeevropski metodi smo v mraziščnih kotanjah na pl. Ovčarija in Za Grivo v Fužinskih planinah (Triglavsko pogorje, Julijske Alpe) fitocenološko preučili rastišča redke in zavarovane vrste slovenske flore, Pulsatilla vernalis. Ugotovili smo, da raste v svojevrstni, navadno na majhnih površinah (4-10 m 2 ) razširjeni združbi rušnatih trav in resav, v kateri prevladujejo zelnate trajnice (hemikriptofiti) ter polgrmi in nizki grmiči (hamefiti) predvsem z arktično-alpinsko in južnoevropsko gorsko razširjenostjo. Ker se ta združba floristično in ekološko očitno razlikuje od doslej v Julijskih Alpah opisanih združb rušnatih trav in resav, jo uvrščamo v novo asociacijo Pulsatillo vernalis-Dryadetum octopetalae ass. nova (red Rhododendro hirsuti-Ericetalia carneae) in jo členimo na dve floristično in ekološko dobro prepoznavni subasociaciji -ericetosum carneae subass. nova in -vaccinietosum subass. nova.
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