calabrica

Updated: April 30, 2025

The majority of the offspring returned to the parental type, but two plants were true dwarfs. From these the requisite degree of purity for commercial purposes was reached, the vicinists not being more numerous than 10% of the entire number. The same mutation had been observed a year earlier in the same nursery in a lot of Saponaria calabrica.

Hugo de Vries - Species and Varieties, Their Origin by Mutation