Boissier based the species description of Delphiniumhellesponticum on the G-BOIS specimens, which is a folder containing two sheets. Only the K duplicate bears a date (“Aug. 1836”). Among the duplicates of Delphiniummacedonicum, only P02840902 bears a date (27 avril 1892) and the collection number 37. Huth based his description of Delphiniumpaphlagonicum on the Sintenis 4547 specimen in his herbarium. The duplicates found in the different herbaria bear different dates, and only LD1742402 (with the date “7 Aug. 1892”), belonging to the Sintenis herbarium, was annotated by Huth, and we treat it as a lectotype. All isotypes indicate herein bear that date.