An additional study on chromosome numbers of 41 specimens of Veronica hederifolia L. subsp. hederifolia and subsp. lucorum (Klett. & Richt.) Hartl. by W. M. Luyt (Laboratory for Experimental Plant taxonomy, Leiden) revealed, that 2n=54 and 2n=36 respectively for most specimens from the Netherlands; in only two specimens 2n=28 was found.