Fitosociologia 40 (2) 2003

U. Silc

Institute of Biology, Scientific research centre of Slovenian Academy of Sciences and Arts, Novi trg 2, SI-1000 Ljubljana, Slovenia; e-mail: urban@zrc-sazu.si

Riparian willow communities along the rivers Krka and Mirna are presented. The standard Central European phytocoenological method was used. Site conditions were described by measurements of the ground water table and maximum water capacity of the soil. In the researched area three associations and two communities were found. Into class Salicetea purpureae Moor 1958 we classify associations Salicetum incano-purpureae Sillinger 1933, Salicetum triandrae Malcuit ex Noirfalise in Lebrun et al. 1955, Salicetum albae Issler 1926, and basal communities Salix purpurea-[Salicetea purpureae] and Salix triandra-[Salicetea purpureae].

S. Brullo & G. Giusso del Galdo

Dipartimento di Botanica, Universita degli Studi di Catania, via Longo, I – 95125 Catania

A syntaxonomical revision of the associations belonging to the class Saginetea maritimae occurring in the Italian territory, is given. They are therophytic, halo-subnitrophilous communities, occurring during springtime, in coastal places, such as rocky coasts and salt marshes as well as in the inland badlands. They are widespread in the territories of the Mediterranean area and Temperate Atlantic Europe, where they constitute a mosaic with the perennial communities of Crithmo-Limonietea, Juncetea maritimi, Sarcocornietea fruticosae, Lygeo-Stipetalia and Agropyretalia repentis. In the Italian territories with a temperate bioclimate, this class is represented by the order Saginetalia maritimae, with the only alliance Saginion maritimae, while in those ones with a mediterranean bioclimate, this order is vicariate by Frankenietalia pulverulentae, within it is possible to distinguish three alliances; they are Frankenion pulverulentae, widespread in the salt-marshes and along the rocky coasts, Limonion avei, replacing the previous one in markedly thermo-xerophilous environmental conditions, and Gaudinio-Podospermion cani, linked to clayey places of inland badlands. All the associations have been examined from the nomenclatural, floristical, ecological and chorological point of view.

A. Catorci, R. Gatti & D. Sparvoli

Dipartimento di Botanica ed Ecologia, Università di Camerino, via Pontoni 5, I- 62032 Camerino; e-mail: andrea.catorci@unicam.it

Viene presentato uno studio fitosociologico relativo ai boschi del Piano Bioclimatico Basso-Montano presenti nel tratto maceratese dell’Appennino umbro-marchigiano. A seguito dell’esecuzione e della valutazione mediante “cluster analysis”, di 54 rilievi, sono state individuate e descritte 6 tipologie forestali (Carici sylvaticae-Quercetum cerridis, Carici digitatae-Ostryetum carpinifoliae, Dactylorhizo fuchsii-Fagetum sylvaticae, Lathyro veneti-Fagetum sylvaticae, Aceretum obtusati-pseudoplatani, Cardamino kitaibelii-Fagetum sylvaticae), per ognuna delle quali è stata indicata la serie di vegetazione.

G. Pirone, G. Ciaschetti, A.R Frattaroli & F. Corbetta

Dipartimento di Scienze Ambientali, Università degli Studi di L’Aquila, Località Coppito, Via Vetoio, I-67100 L’Aquila; e-mail: pirone@univaq.it

The vegetation of “Serranella Lake” Regional Natural Reserve (Abruzzo-Italy). The “Serranella Lake” Regional Natural Reserve is about 500 ha wide. It’s constituted by an artificial bacin at the confluence between Aventino river and Gogna stream with Sangro river and by short stretches of them, in Chieti Province.
From a geological point of view, the river bed is characterised by Olocenic-Upper Pleistocenic gravely-sandy fluvial dregs; the terraces are constituted by platform clays while over them there are Pleistocenic-Upper Pliocenic sands and pudding-stones.
The phytosociological study, carried out on perilacustral, perifluvial and aquatic environments, has brought to the identification of 27 associations and plant communities, belonging to the following vegetational types: pleustophytic (Lemnetalia minoris); rhizophytic (Potametea pectinati); marshy (Phragmitetalia, Magnocaricetalia); nitrophilous therophytic (Bidentetalia tripartitae); hygrophilous therophytic (Cyperetalia fusci); herbaceous perennial of mineral wet and flooded soils (Plantaginetalia majoris, Agrostietalia stoloniferae); nitrophilous riparian (Calystegietalia sepium); riparian woody (Salicetalia purpureae, Populetalia albae).
Among the several associations, Zannichellietum palustris is reported for the first time in the Abruzzo Region, Typhetum laxmanni has here its most southerly station in Italy and other ones, as Scirpetum tabernaemontani, are very rare in the regional territory.