Vegetation Survey at the Former Military Area "Mlada" (Central Bohemia, Czech Republic).

The former military area Mladá harbours the remnants of a natural oakwood and semi-cultural xerothermic grasslands. During the vegetation period 2004 - 2007, more than 300 vascular plant taxa were determined there. The authors found some severely endangered and endangered species of the Czech republic´s flora, the former include i.a. Epipactis muelleri, Gentiana cruciata, Platanthera bifolia, Lithospermum officinale, Odontites vernus subsp. vernus, the latter Prunella grandiflora, Dorycnium herbaceum, P. laciniata, Verbascum phoeniceum, Tetragonolobus maritimus or Astragalus danicus. The occurence of very weel preserved and biologically valuable herbal community of the union Bromion erecti was confirmed there. The plant communities just mentioned are severely threatened by the expansion fo Calamagrostis epigejos, but also by overgrowing by Rubus sp. and Bromus inermis.

Acknowledgemets: The article was financially supported by the research grant of the Ministry of Education, Youth and Sports of the Czech Republic no. 604607901.