Zhiguli hills endemic species in the Mogutova mountain flora

Abstract

Mogutova mountain flora (Zhiguli hill, Samara Region) has about 700 species of vascular plants, 14 species are included in the Red Book of the Russian Federation (2008), 50 species are included in the Red Book of the Samara Region (2017), 7 species are the endemics of the Zhiguli hills. On the Mogutova mountain 48 plant associations were described: 36 associations are represented by forest vegetation, 1 Association is represented by shrubs, 11 associations are represented by herbaceous vegetation. In eight described associations there are 6 endemic species of the Zhiguli hills: in Cerasus fruticosa + Caragana frutex association one endemic species is found - Euphorbia zhiguliensis; in Stipa pennata - Caragana frutex association there are 3 endemics - Cerastium zhigulense, Gypsophila juzepczukii and Thymus zheguliensis; in Stipa capillata + Herbae stepposae and Stipa capillata + Echinops ruthenicus associations there is only Thymus zheguliensis; in Herbae stepposae + Stipa pulcherrima and Stipa pennata + Helianthemum nummularium associations there are 2 endemic species - Gypsophila juzepczukii and Thymus zheguliensis; in Thymus zheguliensis association there are 4 endemics - Cerastium zhigulense, Gypsophila juzepczukii, Sisymbrium pinnatisectum, Thymus zheguliensis; in Schevereckia hyperborea association Poa saksonovii is revealed. The endemics of the Zhiguli hills: Euphorbia zhiguliensis and Thymus zheguliensis are protected at the Federal level, and Cerastium zhigulense, Gypsophila juzepczukii and Poa saksonovii are protected at the regional level.