Fitosociologia 39 (2) 2002

F. Corbetta¹, P. Pavone², G. Spampinato³, V. Tomaselli⁴ & A. Trigilia⁵

¹Dipartimento di Scienze Ambientali, Università dell’Aquila, via Vetoio, loc. Coppito, I-67100 L’Aquila; e-mail: corbetta@univaq. it
²Dipartimento di Botanica, Università di Catania, via A. Longo 19, I-95125 Catania; e-mail: pavone@mbox.dipbot.unict.it
³Dipartimento S.T.A.F.A., Università Mediterranea di Reggio Calabria; e-mail gspampinato@unirc.it
⁴Istituto de1 Germoplasma, C.N.R. di Bari, via Amendola 165/A, I-70126 Bari; e-mail: tomasellivalefed@hotmail.com
⁵Soprintendenza Beni Culturali e Ambientali di Siracusa, p.zza Duomo14, I-96100 Siracusa

Vegetational study on the Neapolis (Syracuse, Sicily) archaeological area target-oriented to the preservation of the architectonical construction. In this paper the study of vegetation occurring in the archaeological area of Neapolis (Syracuse) is presented. The phytosociological analysis allowed to identification of several communities, belonging to Quercetea ilicis, Parietarietea judaicae, Adiantetea capilli-veneris, Lygeo-Stipetea, Molinio-Arrhenatheretea, Stellarietea mediae, Polygono-Poetea annuae and Stipo-Trachynietea distachyae classes. On the basis of this analysis, using the dangerousness index proposed by Signorini (1996) to evaluate the impact degree of each species on archaeological monuments. the dangerousness of each vegetation type was evaluated.
The question of the contro1 on the vegetation growing in the archaeological area of Neapolis is in contrast with the necessity to maintain many species of phytogeographic or aesthetic value, as Origanum onites L., Antirrhinum siculum Miller, Andrachne telephioides L., Capparis spinosa L., Matthiola incana (L.) R.Br. and Adiantum capillus-veneris L. On the basis of the obtained results, a differentiated management of the different fields in the archaeological area is advised. Account will be kept either of the value of the single monument, or of the naturalistic value of flora and vegetation.

B. Diez-Garretas & A. Asensi

Departamento de Biologia Vegetal (Botanica), Facultad de Ciecias, Universidad de Malaga, Aptdo. 59, 29080 Malaga, Espana; e-mail: bdgarretas@uma.es; asensi@uma.es

Therophytic plant communities that develop on western and southern coastal sands of rhe Iberian Peninsula and Norrhern Africa (Morocco and Algeria) have been studied. A syntaxonomical revision and chorology of the Linarion pedunculatae was made using the Braun-Blanquet methodology and miultivariate analysis (Correspondence Analysis). A new association (Loto arenarii-Linarietum arenicolae) is described for the Atlantic coast of Morocco.

G. Buffa¹, C. Lasen², D. Mion¹, G. Sburlino¹ & J.-P. Theurillat³

¹Dipartimento di Scienze Ambientali, Campo Celestia 2737b, I-30122 Venezia; e-mail: buffag@unive.it
²Arson, Via Mutten 114, I-32030 Villabruna (Belluno)
³Centre Alpien de Phytogéographie, Fondation J.-M. Aubert, CH-1938 Champex-Lac

Festuca melanopsis grasslands in the south-eastern Alps. The study regards the subalpine and alpine Festuca melanopsis – dominated grasslands of the south-eastern Alps. Festuca melanopsis, belonging to the F. violacea aggregate, occurs both in Elyno-Seslerietea (Caricion ferrugineae) and in Caricetea curvulae (Caricion curvulae, Fetucion variae, Agrostion schraderianae) communities, showing a rather wide ecological tolerance. However, in the studied area, this species shows its highest fidelity for Knautio-Trifolietum nivalis which geographically vicariates Trifolio thalii-Festucetum nigricantis of the central-northern Alps. A complete syntaxonomical scheme is given.

V. Roussakova

Institut de botanique de l’ASB, rue Acad. Georgi Bontchev, 23, Sofia – 1113, Bulgarie; e-mail: rusakova@iph.bio.bas.bg

In the study a description 15 phytocoenosis where Carex rupestris is a dominant species on siliceous substratum located on the summits Deno in the alpine belt of Rila mountain. Consequently Carex rupestris is not extinct species in the Bulgarian flora as some Bulgarian researchers maintain. One new association is differentiated – Pediculario-Caricetum rupestris.

E. Biondi, S. Casavecchia, M. Pinzi, M. Allegrezza & M. Baldoni

Department of Agricultural and Environmental Biotechnologies, University of Ancona, via Brecce Bianche, I – 60131 Ancona; e-mail: biondi@unian.it

Here is presented a contribution towards the syntaxonomic definition of the mesophilous woods, mainly found throughout the montane and submontane bioclimatic belts, of the Central and Northern Apennines.
In the syntaxonomic groupings at the hierarchical level of alliance and suballiance, considerably modified with respect to previous reports, the contribution that the Eastern species makes to this vegetation is emphasised with reference to the syntaxonomic units with a Balkan distribution, bringing out the biogeographical connections that assign the territories under investigation to the Apennino-Balkan Province and to che Padanian and Apennine Subprovinces. Previously, these biogeographical links were shown in syntaxonomic terms only for the vegetation of the mixed deciduous woods, of the hilly bioclimatic belt, that have been assigned to the Ostryo-Carpinion orientalis alliance and included in the Lauro-Quercenion pubescentis suballiance, for the mainly thermophilous, pre-Apennine woods rich in Mediterranean species, and Laburno-Ostryenion carpinifoliae, for those more mesophilous and inland. In the present study, also for the woods of the Central and Northern Apennines with a prevalence of beech, it is possible io show the link with the Eastern system assigning them to the Aremonio-Fagion alliance within which there is the new Cardamino kitaibelii-Fagenion sylvaticae suballiance. Funhermore, there is evidence of the co-presence in the Central Apennines of beech woods assigned to the southern Apennine Geranio versicoloris-Fagion alliance. This is due to a condition of altitude substitution causing the presence, at the lower altitude, of associations belonging to the latter alliance while impoverished forms of the Northern Cardamino kitaibelii-Fagenion sylvaticae suballiance occur solely at the higher altitudes.
Also for the woods of Turkey oak and European ash with the abundant presence of European hornbeam, the connection with the Eastern formation is proposed, assigning them to the Erythronio dentis-canis-Carpinion betuli alliance, for which can be found in Italy the Asparago tenuifolii-Carpinenion betuli suballiance for the Padanian Subprovince, and Pulmonario apenninae-Carpinenion betuli for that of the Apennines.
The syntaxonomical scheme for the communities discussed in the text and others meaningfull for the studied area will be presented at the end of this document.