Cluster analysis (cover data, Similarity ratio, WPGMA) of alluvial/waterside woods rich in Ulmus minor from the central-western Po Plain assigned in the literature to Alno-Padion and from the Karst area, riverine woods of Lamio-Ulmetum and Dioscoreo-Populetum, alluvial oak-hornbeam woods of Asparago-Quercetum roboris of the central-eastern Po Plain. Numbering of objects is omitted. A: Asparago-Quercetum roboris (from Lausi 1967); B: Polygonato-Quercetum roboris (Sartori 1984; Assini 2011a); C: Vinco minoris-Ulmetum minoris ass. nov. (Tab. 2 in Sartori and Zucchi 1981, sub "Boschetti di Olmo e Farnia"; Tab. 2 in Cavani et al. 1981, sub "Querceto misto a Quercus robur e Ulmus minor"; Tab. XXI in Bracco et al. 1984, sub Polygonato multiflori-Quercetum roboris; Tab. 10 in Assini 1998, sub Querco-Ulmetum minoris; see Tab. 9 in this paper); D: Lamio-Ulmetum minoris (Poldini et al. 2017); E: Rhamno catharticae-Ulmetum minoris ass. nov. (Tab. 8 in this paper); F: Dioscoreo-Populetum (Poldini et al. 2017); G: Rubo caesii-Ulmetum minoris (Corbetta and Censoni Zanotti 1974); H: Salvio glutinosae-Quercetum roboris ass. nov. (Tab. 1, rels. 1-7 in Cavani et al. 1981, sub “Boschi igrofili a Populus alba”; see text); I: “Querco-Ulmetum minoris” (Tab. VI in Guglielmetto Mugion and Montacchini 1993-94).

  Part of: Poldini L, Vidali M, Castello M, Sburlino G (2020) A novel insight into the remnants of hygrophilous forests and scrubs of the Po Plain biogeographical transition area (Northern Italy). Plant Sociology 57(2): 17-69.