Mean absolute and relative amount of volatile compounds in headspace samples collected from inflorescences of six Campanula species (one species with two morphs).

* Identification based on authentic standards.Volatiles are listed according to chemical class and within class according to Kovats Retention Indices (KRI). Tr—compounds found in relative amount Campanula glomerata (GLO), Ca. lactiflora (LAC), Ca. persicifolia (PER), Ca. persicifolia alba (PEA), Ca. rapunculoides (RPC), Ca. rotundifolia (ROT), and Ca. trachelium (TRA). The original data on the flower scent of Ca. trachelium are published in Milet-Pinheiro et al. [34].Mean absolute and relative amount of volatile compounds in headspace samples collected from inflorescences of six Campanula species (one species with two morphs).