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Zur Orchideenflora zirkumsizilianischer Inseln

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Richard Lorenz at AHO Baden-Württemberg
Richard Lorenz
  • AHO Baden-Württemberg
Karin Lorenz
Karin Lorenz
Karin Lorenz
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... Further data are available from the Province of Trapani (Raimondo et al. 1986(Raimondo et al. , 1990(Raimondo et al. , 1992Scuderi 2006;Aleo et al. 2013), related floristic reports (e.g. Catanzaro 1984;Brullo and Marcenò 1985b;Ottonello and Catanzaro 1986;Raffaelli and Ricceri 1988;Lorenz and Lorenz 2002;La Rosa et al. 2021;etc.) or descriptions of new species (e.g. ...
Itineraries of the Working Group for Vegetation Science of the Italian Botanical Society – 1 (2022): Excursion to the Egadi Islands, Mount San Giuliano and Mount Cofano (Trapani, western Sicily, Italy)
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Full-text available
  • Jul 2023
The results of the annual excursion of the Working Group for Vegetation Science of the Italian Botanical Society, held in the Egadi Islands, Mount San Giuliano and Mount Cofano (W Sicily) on April 23–27 2022, are presented. This paper includes: (1) general information on the visited sites; (2) geology and geomorphology; (3) climatology and bioclimatology with tables of climatic data; (4) description of the following five geobotanical itineraries – accompanied by 29 original vegetation relevés and 11 synthetic relevés, proceeding from different bibliographic references: (a) Mount San Giuliano; (b) Marettimo Island: coastal and sub-coastal stretch of the southern part, between Punta Bassana and Contrada Chiappera; (c) Marettimo Island: Case Romane, Mount Pizzo Falcone and the north-western coastal stretch; (d) Island of Levanzo; (e) Mount Cofano – with catenal pictograms of the vegetation, surveys and description of the plant communities and related syntaxonomic scheme; (5) list of the surveyed plant taxa, collected specimens and herbaria in which they are deposited. A new syntaxon is also described (Catapodio pauciflori-Moraeetum sisyrinchii ass. nova), referring to an ephemeral dry grassland located along the north-western coastal stretch of Marettimo. The new association is framed in the Plantagini-Catapodion balearici , alliance of the Stipo-Bupleuretalia semicompositi order of the class Stipo-Trachynietea distachyae (order Stipo-Bupleuretalia semicompositi , alliance Plantagini-Catapodion balearici ). An original synoptic table, regarding 17 different plant communities with high frequency of Moraea sisyrinchium , provides a comparative framework of the new association with allied vegetation units so far described throughout the Mediterranean region. Syntaxonomical and nomenclatural remarks regarding the Mediterranean vegetation occurring in this territory are also given throughout the text. Some floristic updates for the study sites are also reported, including the discovery for the first time in Sicily of Lysimachia loeflingii .
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Cristaudo A., Galesi R., Lorenz R. & Zelesny H. (2010): Ein Beitrag über die Ophrys sphegodes-Population am Ätna und zwei neue Bastarde del Gattung Ophrys in Sizilien.
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Full-text available
  • Jan 2010
Sul versante nordovest dell’Etna è nota da cica 20 anni una consistente popolazione di un’entità ascrivibile all’aggregato Ophrys sphegodes s.l., ma distinta dalla specie tipica per un labello da espanso tondeggiante a fortememnte convesso e una macula ampia e spesso riccamente ornata. Classificata dapprima come O. exaltata, differisce da quest’ultima per la minore altezza, il labello arrotondato ed i sepali esclusivamente verdi; si differenzia inoltre dall’affine O. exaltata subsp. panormitana per il lbello intero ed i sepali verdi, da O. rachnitiformis subsp. archipelaghi (incl. O. mateolana e O. cilentana) per i sepali verdi e da O. garganica per i petali più stretti, la macula più ornata e le callosità basali bruno-verdastre. Approfonditi esami morfologici hanno messo in evidenza la sua distinta posizione tassonomica e hanno permesso di identificarla come nuova sottospecie: Ophrys sphegodes subsp. grassoana. Si descrivono inolte due nuovi ibridi: Ophrys exaltata  Ophrys garganica, confermato per il territorio di Niscemi (CL), e O. bertolonii subsp. explanata  O. holosericea subsp. apulica, confermato per Favignana (isola dell’arcipelago delle Egadi, a circa 7 km dalla costa occidentale della Sicilia). Mentre i parentali del primo ibrido hanno un areale di distribuzione che si sovrappone per tutta la Calabria e Sicilia, l’areale comune dei parentali del secondo ibrido è molto ristretto, sovrapponendosi solo a livello delle Isole Egadi.
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  • Jan 1996
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