| An investigation has been made on the distribution of Nymphaea alba and N. Candida in the Netherlands. During 1977 7 new localities of N. Candida were discovered, while from three other localities material was present in the Rijksherbarium Leiden, so that now 11 localities of the species are known. The distribution in the Netherlands seems to be discontinuous and is restricted to a part of the Fluviatile district and the borders of the Drenthian district, in the northern part of the country (fig. 1). The discovery of the species by TÜXEN (1955) in Niedersachsen may indicate, that the species can be expected to occur in more localities in northwestern Germany, connecting the northern localities in the Netherlands with those of the main area in eastern... |
