Adil GÜNER, Vehbi ESER - optima

Posters
112
TAXONOMICAL AND CHOROLOGICAL DIVERSITY OF NATIVE
WOODY FLORA OF ITALY AT REGIONAL SCALE
Giovanna ABBATE 1 , Mauro IBERITE 2 , Sandro BONACQUISTI 3 , Emanuela GIOVI 4 ,
Duilio IAMONICO 5 , Elisabetta SCASSELLATI 6
1 Università di Roma “Sapienza”, Dipartimento di Biologia Vegetale, Roma, Italy
giovanna.abbate@uniroma1.it
2 Università di Roma “Sapienza”, Dipartimento di Biologia Vegetale, Roma, Italy
mauro.iberite@uniroma1.it
3 Università di Roma “Sapienza”, Dipartimento di Biologia Vegetale, Roma, Italy
sandro.bonacquisti@libero.it
4 Università di Roma “Sapienza”, Dipartimento di Biologia Vegetale, Roma, Italy
emanuela.giovi@uniroma1.it
5 Università di Roma “Sapienza”, Dipartimento di Biologia Vegetale, Roma, Italy
duilio76@yahoo.it
6 Università degli Studi Roma Tre, Dipartimento di Biologia Ambientale, Roma, Italy
elisabetta.scassellati@gmail.com
This study, after relating about the up-to-date statistics of native woody flora of Italy,
analyses: 1) taxonomic diversity at genus and unit (species and subspecies) ranks, 2)
chorological spectra, both at the level of administrative region (20 regions). The data set,
derived from the Checklist of the Italian Vascular Flora and revisions, includes all the units
definitely occurring in Italy at present. Native woody flora of Italy consists of 508 units
(6.68% of total units), 467 species, 135 genera and 60 families. Trees are 116 units, shrubs
374, and lianas 18.
The richest families are: Rosaceae (140 units), Fabaceae (62), Salicaceae (43), Pinaceae and
Fagaceae (18), Caprifoliaceae (14), Rhamnaceae (16), Cistaceae (12). The richest genera are:
Rubus (54 units), Rosa and Salix (39), Genista (27).
The chorological spectrum of woody plants of Italy shows the prevalence of
stenomediterranean (21.0%), european (18.4%) and endemic (14.8%) taxa. Namely, woody
endemic plants (including subendemics s.l.) are 74, 50 of which (67.57%) are stenoendemic
units (occurring in one region) and 24 (32.43%) euriendemic (occurring in more than one
region). The endemites are divided into 17 families and 26 genera. The families and genera
richest in endemites are: Fabaceae (27 units), Salicaceae (16), Rosaceae (9), Genista (20),
Salix (16), Adenocarpus and Santolina (4).
Data clustering highlighted that:
-woody units divided Italy into: 1) peninsular Italy + Sicilia, 2) Sardegna; 1.1) peninsular
Italy, 1.2) Sicilia; 1.1.1) Northern Italy, 1.1.2) Central-Southern Italy.
-woody genera divided Italy into: 1) Northern + Adriatic Italy, 2) Central-
Southern + Thyrrenian Italy + major islands; 1.1) Northern, 1.2) Adriatic
Italy, 2.1) Southern, 2.2) Thyrrenian Italy, 2.3) major islands.
-chorotypes divided Italy into: 1) peninsular Italy, 2) major islands; 1.1)
Northern, 1.2) Central-Southern Italy; 1.1.1) Valle d’Aosta, 1.1.2) Northern
Italy, 1.2.1) Puglia 1.2.2) Central-Southern Italy.
Keywords: checklist database, chorotypes, Italy, woody endemites, woody plants.
48