I got it wrong.
In my ‘A glossary of the Italian centre left’ posted on December 15 I erroneously wrote that the term arancione (orange) refers to exponents of the newly formed political movement (not yet a full-blown party) called Sinistra Italiana comprising defectors from the Democratic Party (PD), Sinistra Ecologia e Libertà (SEL) and disenchanted former members of the anti-establishment Five-Star Movement (M5S) and that modello arancione is the epithet for the alliance.
Sinistra Italiana does, it seem, have a logo comprising white writing on an orange background.
However, the ‘orange’ that crops up time and again in current reporting on the shambles within the centre-left in fact refers to exponents of another movement, Movimento arancione, launched by incumbent Naples mayor Luigi De Magistriis in 2012 to bring together politicians and civil society representatives unhappy with traditional political parties. They created an alternative model of centre-left government – the so-called modello arancione – based on democratic participation and civic revival.
Key exponents of this movement are Giuliano Pisapia, Marco Doria and Massimo Zedda, respectively incumbent mayors of Milan, Genoa and Cagliari, who were behind a recent call for unity within the centre left in view of local elections next year.
Separately, further research has turned up two more factions within the PD:
Sinistra è cambiamento: per una primavera democratica (Left is change: for a democratic spring), launched by agriculture minister Maurizio Martina in June 2015. Described in journalese as the sinistra dialogante (the left that is prepared to dialogue), as opposed to the minoranza dem led by Roberto Speranza that disagreed with Renzi over the Italicum electoral law before the summer and remains openly hostile to the government to this day.
Area riformista: launched in April 2014 as an aggregate of minority factions within Renzi’s PD loosely grouped around party heavyweights Pierluigi Bersani (so-called bersaniani), Massimo D’Alema (dalemiani), Enrico Letta (lettiani) etc. The area also includes the minoranza dem.