As a supplement to the paper of HILLEGERS in Gorteria 4 (9), 1969, p. 161—165, the present author mentions a locality of Gagea lutea in the dune-area near Haarlem. Of many species growing especially in old countryseats (“stinsen”) the factor “former cultivation” was thought to be the most important one for the occurrence of these species in the Netherlands. The author points out that the ecological factors up till now are practically neglected, but that they are of great importance. It is possible that many of these species are really native in many countryseats.