Notulae to the Italian alien vascular flora: 13

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates published elsewhere are provided as Suppl. material 1. Casual alien species new for the flora of


How to contribute
The text for the new records should be submitted electronically to Lorenzo Lastrucci (lorenzo.lastrucci@unifi.it). The corresponding specimen along with its scan or photograph has to be sent to FI Herbarium: Museo di Storia Naturale (Botanica), Sistema Museale di Ateneo, Via G. La Pira 4, 50121 Firenze (Italy). Those texts concerning nomenclatural novelties (typifications only for accepted names), status changes, exclusions, and confirmations should be submitted electronically to Gabriele Galasso (gabriele.galasso@ comune.milano.it). Each text should be within 1,000 characters (spaces included). The presence of Acer negundo is increasingly common in disturbed areas of Toscana. Numerous individuals colonize urban areas and roadsides (Peruzzi and Bedini 2022+). From observations made in 2020 in the provinces of Siena and Arezzo, we noticed that in some areas with a strong disturbance the species grows abundant, sometimes in dense stands. In Chiusi [(Siena), fraz. Montallese, lungo la strada SP326, WGS84: 43.052790°N, 11.920611°E, margini stradali e ambienti ruderali, 255 m, 17 September 2021, T. Fiaschi, E. Fanfarillo (SIENA)] and other localities (e.g., Monteriggioni (Siena), WGS84: 43.392968°N, 11.217782°E), we observed abundant, fructifying adult individuals and seedlings. We therefore propose the change of status from naturalized to invasive.

Floristic records
C. Angiolini, E. Fanfarillo, T. Fiaschi E. Banfi, G. Galasso (FI, MSNM Nos. 51386, 51387, 51388, 51389).   (Argenti et al. 2019), in which today it is almost totally replaced by Ammannia coccinea Rottb. Vigasio is among the localities reported by Goiran (1900)   This species was identified according to Atha and Boom (2017). At least three 50-150 cm tall specimens were observed, born spontaneously from trees growing in the adjacent Via delle Coste. In some central European countries, F. pennsylvanica is an invasive species in riparian environments (Verloove 2016  Hundreds of individuals were found sparsely along the shores of the Cixerri dam, occupying an area of approximately 5,000 m 2 . We observed a tendency of the species to colonise also the adjacent areas due to its edible fruits dispersed by animals. A Pueraria lobata is a particularly noxious, invasive, densely-packed climbing species, considered among the 100 world's most invasive alien species (Lowe et al. 2004) and included in the black list of invasive alien species of Union concern [Reg.
(EU) no. 2016/1141]. It has invaded an area of about 200 m 2 , even climbing on some trees. This species shows a strong tendency to expand, even when limited by an urban context. G. Ferretti In Milano Sedum palmeri is largely naturalized on the masonry banks of the Naviglio della Martesana, with dozens of individuals for a stretch of at least 1.7 km in length (WGS84: from 45. 514009°N, 9.253945°E to 45.504995°N, 9.237820°E  This species was detected in 2016 (Campus and De Pascali 2017) near the Brotzu Hospital of Cagliari, where currently it has disappeared. In recent years, we have found it in Nora and Pula (Pula, Cagliari), where it was first introduced in green lawns and then started to produce viable seeds that are germinating in neighbouring areas.

Rubus laciniatus
M This species was identified according to Zhang and Hartley (2008). It is a plant of melliferous interest, planted near an apiary in the indicated locality. It features abundant renewal up to 15 m away. In Europe, it sporadically escapes from cultivation, for example in southwestern Germany (Mazomeit 2016 This species was sown in 2016 for "greening" of a highway escarpment at Grotti, and some individuals now grow also in ruderal meadows nearby. Near Castel Madama, a large population grows on a highway escarpment and nearby areas. The use of this species for embankment greening followed by local naturalization is already reported for N-Italy and Switzerland (Bertolli and Prosser 2014 and references therein;Röthlisberger 2010). A germination test on spikelets collected from the Grotti plants confirmed that the population is able to reproduce.
L. Cancellieri, G. Filibeck, S. Maestri, G. Salerno This species was identified according to Liu and Phillips (2006). The plant is cultivated in China for food use of the young shoots and rhizomes when infected by the fungus Ustilago esculenta Henn. (Basidiomycota), which renders the indicated parts edible and inhibits the normal development of the synflorescence. Since the plants found do not bloom, their presence at the site is almost certainly related to this use. E. Banfi, L. Tosetto, R.R. Masin, R. Pellegrini

Nomenclatural and distribution updates from other literature sources
Nomenclatural, status, distribution updates, and corrections to Galasso et al. (2018) are provided in Suppl. material 1. G. Galasso, F. Bartolucci