10 th <str<strong>on</strong>g>Symposium</str<strong>on</strong>g> <strong>on</strong> <strong>the</strong> <strong>Flora</strong> <strong>of</strong> Sou<strong>the</strong>astern <strong>Serbia</strong> <strong>and</strong> Neighbouring regi<strong>on</strong>s,Vlasina 17 to 20 June 201010
10 th <str<strong>on</strong>g>Symposium</str<strong>on</strong>g> <strong>on</strong> <strong>the</strong> <strong>Flora</strong> <strong>of</strong> Sou<strong>the</strong>astern <strong>Serbia</strong> <strong>and</strong> Neighbouring regi<strong>on</strong>s,Vlasina 17 to 20 June 2010<strong>Flora</strong> <strong>and</strong> vegetati<strong>on</strong> <strong>of</strong> Vlasina plateauRanđelović, V., Zlatković, B.Department <strong>of</strong> Biology <strong>and</strong> Ecology, Faculty <strong>of</strong> Sciences <strong>and</strong> Ma<strong>the</strong>matics,University, <strong>of</strong> Nis, <strong>Serbia</strong>vladar@pmf.ni.ac.rsThe Vlasina plateau is situated in sou<strong>the</strong>astern <strong>Serbia</strong> between Vardenik,Čemernik, Plana <strong>and</strong> Bukova Glava mountains. <strong>Flora</strong> <strong>of</strong> Vlasina plateau c<strong>on</strong>tains178 species <strong>of</strong> mosses, 5 species <strong>of</strong> horsetail, 14 fern species <strong>and</strong> 925 species <strong>of</strong>spermatic plants. 178 species <strong>of</strong> moss species are divided into <strong>the</strong> following classes:Marchanthiopsida (30 species), Sphagnopsida (12 species) <strong>and</strong> Bryopsida (136species). The tax<strong>on</strong>omical analysis indicates that mosses are represented by 96genera <strong>and</strong> 56 families. The most numerous genus Sphagnum c<strong>on</strong>tains 12 species.Vascular plants are represented by 383 genera <strong>and</strong> 94 families. Families richest ingenera are: Asteraceae (53), Poaceae (38) <strong>and</strong> Apiaceae (23). Families with <strong>the</strong>most species are: Asteraceae (132 species), Poaceae (79) <strong>and</strong> Scrophulariaceae(57). The analysis <strong>of</strong> <strong>the</strong> particular genera occurrence in flora <strong>of</strong> Vlasina plateau hasshown an absolute dominati<strong>on</strong> <strong>of</strong> representatives <strong>of</strong> genus Carex (34 species) whileTrifolium (19 species) <strong>and</strong> Ranunculus (15) genus were <strong>of</strong> less importance.The flora <strong>of</strong> mosses c<strong>on</strong>tains 52 different floristic elements divided into 5 basicarea types. While more detail phytogeographical analysis reveals <strong>the</strong> dominance <strong>of</strong>boreal (60) <strong>and</strong> holarctic species (75). The phytogeographyc analysis <strong>of</strong> flora <strong>of</strong>Vlasina plateau regi<strong>on</strong> reveals <strong>the</strong> presence <strong>of</strong> 310 different floristic elements,classified into 10 basic area types <strong>and</strong> 20 different area groups. The species <strong>of</strong>Eurasian area type (459 species, 48,6%) are <strong>the</strong> most abundant <strong>on</strong>es, followed byspecific high-mountain elements <strong>of</strong> <strong>the</strong> Eurasian mountain (123 species). Theanalysis shows that <strong>the</strong> floras <strong>of</strong> Vlasina c<strong>on</strong>sider 45 endemics <strong>and</strong> 30 subendemics.The illustrati<strong>on</strong> <strong>of</strong> life c<strong>on</strong>diti<strong>on</strong>s (especially <strong>of</strong> climate occasi<strong>on</strong>s) keepsproporti<strong>on</strong>al representati<strong>on</strong> <strong>of</strong> life plant forms in <strong>the</strong> flora <strong>of</strong> Vlasina plateau. Thehemicryptophytic character <strong>of</strong> Vlasina plateau flora, toge<strong>the</strong>r with significantc<strong>on</strong>tributi<strong>on</strong> <strong>of</strong> <strong>the</strong>rophytes <strong>and</strong> geophytes, is established by analyzing <strong>the</strong> presence<strong>of</strong> vascular plants' life forms.Phytocoenological analysis shows 63 different associati<strong>on</strong>s from 35 alliances,24 orders <strong>and</strong> 19 classis. The next types <strong>of</strong> vegetati<strong>on</strong> can be differentiated from <strong>the</strong>ecological st<strong>and</strong>-point: aquatic <strong>and</strong> moor vegetati<strong>on</strong>, vegetati<strong>on</strong> <strong>of</strong> flooded places,wet grassl<strong>and</strong>s, vegetati<strong>on</strong> <strong>of</strong> springs, tall herbaceous vegetati<strong>on</strong>, herbaceousvegetati<strong>on</strong> <strong>of</strong> woodl<strong>and</strong> clearings, peat-bogs vegetati<strong>on</strong>, vegetati<strong>on</strong> <strong>of</strong> meadows <strong>and</strong>pastures in mountain <strong>and</strong> subalpine z<strong>on</strong>e, vegetati<strong>on</strong> <strong>of</strong> dwarf-shrubs, forestvegetati<strong>on</strong>, nytrophilous <strong>and</strong> ruderal vegetati<strong>on</strong>.11