New distribution data and relationship with Directive 92/43/EEC on apulian critical taxa growing in Province of Bari

In this work the authors report news on 20 species growing in Province of Bari. Anthemis hydruntina H. Groves, Ophioglossum lusitanicum L. and Sternbergia colchiciflora Waldst. & Kit., threatened species for Italy and Apulia Region, are reported for the second or third time at regional level, and the first time to Province of Bari; Aegilops biuncialis Vis. and A. uniaristata Vis., reported in the Regional and National Red List, have been found in new stations. Gagea granatellii Parl., Berteroa obliqua (Sm.) DC. subsp. obliqua, Jonopsidium albiflorum Durieu, other 3 species of the Red List, were observed in new stations and provided updates on presence/absence for older works. For Allium garganicum Brullo, Pavone, Salmeri & Terrasi, Cheilanthes acrostica (Balb.) Tod., Geropogon glaber L., Heliotropium supinum L., Orchis laxiflora Lam., Peganum harmala L., Verbena supina L., that are extremely rare taxa at regional or national level and poorly/no documented, important distributional data were provided. New stations of Inula spiraeifolia L., Phlomis fruticosa L. and Scorzonera hirsuta L. were documented. During field surveys two adventitious species of particular interest were also found: Centranthus macrosiphon Boiss. and Convolvulus sabatius Viv. subsp. sabatius. The relationships between these species and the 92/43/EEC Directive show that 13 out of 20 taxa are part of 7 different habitats, while for the other 7 species, insufficient data about plant communities or low numerical consistency of the populations, do not allow the identification of habitat. The data allow the updating of the Natura 2000 Data Forms.