1,720,975 research outputs found
First record of Scorzoneroides muelleri (Asteraceae) in Apulia: Phytosociological analysis and conservation status in Italy
No full textScorzoneroides muelleri (Sch. Bip.) Greuter & Talavera (Asteraceae), a very rare species, is a hygrophyte occurring in the southern part of the Mediterranean basin. In Italy, the presence of this species is confirmed for Sicily, while in Sardinia and Liguria it has not been recorded any longer. Three new localities, recently found in Apulia (southern Italy), are here reported. The floristic composition of Scorzoneroides muelleri communities in Italy is here analyzed, in order to characterize the diversity of populations in relation to different ecological conditions and assess their conservation status at regional level. A total of 70 plots were surveyed. For each plot, the floristic composition and cover of the species were determined using standard method of relevés. Cluster analysis and Principal Components Analysis (PCA) allowed the identification of three vegetation types which correlated with ecological gradients ranging from the coast to inland areas. The first is characterized by the presence of Lythrum hyssopifolia (coastal zone, Sicily), the second by the presence of Trisetaria aurea (inland zone, Sicily) and the third by Sphenopus divaricatus (coastal zone, Apulia). The limited distribution of this taxon is a probably a consequence of the degradation, fragmentation and reduction of its natural habitat
Notulae alla checklist della Flora Vascolare Italiana: 1196. Damasonium alisma Mill. ssp. bourgaei (Coss.) Maire “(ALISMATACEAE)
No full textNotulae alla checklist della Flora Vascolare Italiana: 1196.Muscari parviflorum Desf. (Hyacinthaceae)
No full textAggiornamento delle conoscenze floristiche della Basilicata: conferma di antiche segnalazioni e nuovi dati distributivi di specie rare.
No full textNotulae alla checklist della Flora Vascolare Italiana: 1195. Betula pendula Roth (Betulaceae)
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Carex phyllostachys C. A. MEY. (Cyperaceae) new for Italy and Phytogeographical Considerations
No full textThe occurrence of Carex phyllostachys C. A. MEY. has been reported from Santeramo in Colle (Apulia, southeastern Italy) in a deciduous wood, ascribable to the association Stipo bromoidis-Quercetum dalechampii. It is the first record of this species in Italy. The new site represents the westernmost limit of the distribution of this mostly Caucasian species. In Europe the species is very rare, until now known from the Balkan Peninsula only. The occurrence of this species in Apulia underlines once more the affinities between the flora and the vegetation of this Italian region and southeastern Europe. The IUCN assessment leads to consider the species as Critically Endangered (CR) in Italy
Applicazione del Metodo Delphi per l'analisi delle motivazioni degli incendi: il caso Taranto
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