mul06 | The type association of the Petasition officinalis Sillinger 1933 (Kliment & Jarolímek 2002: 107) is the relevé 1 on page 134 in Sillinger (1933). According to Michl et al. (2010) this type relevé can clearly be assigned to the lowland tall-herb communities due to the prevalence of many diagnostic species of the Artemisietea vulgaris and Filipendulo-Calystegietea (Aegopodium podagraria, Anthriscus sylvestris, Filipendula ulmaria, Galium aparine, Petasites hybridus). It is for this reason that Michl et al. (2010) suggested classifying the Petasition officinalis Sillinger 1933 within the Filipendulo-Calystegietea. (LM).
Petasition hybridi Sillinger 1933 nom. mut. propos.
– mul07 The proposal to use the mutated form of the name (Petasitetum hybridi) dates back to at least to Soó (1980). Formal proposal for mutating the name was done by Kočí in Chytrý (2009: 313). (LM).