Germination response across populations of the stenoendemic chasmophyte Campanula raineri (Campanulaceae)

This study describes a successful germination protocol for Campanula raineri (Campanulaceae), a protected rock-face dwelling species, endemic to the Italian calcareous Prealps. Germination tests were performed on seed lots from nine different populations across the geographical range of the species. Mean germination rates higher than 80% were reached within 28 days for almost all of the populations under analysis. The populations from the highest elevations exhibited the highest mean germination rates.