During the preparation of treatment genus Phacelia for Flora Argentina project, several names were found in need typification. In this context lectotypes are designated 17 names: Aldea pinnata, Eutoca frigida, E. litoralis, lomarifolia, pinnatifida, pusilla, Hydrophyllum magellanicum, boliviana, P. foliosa, magellanica fo. amoena, plantaginea, nana, pinnatifida var. elatior, sanzinii, sinuata a...