Keywords: Vallisneria spiralis J. C. Loudon (1826.jpg en Vallisneria spiralis nl Vallisneria http //www flickr com/photos/25752214 N02/7459948498/in/photolist-cndbMG-7EkEqn-67X2wu-bpMBBZ-bpEzcz-zKLrz-8VG7BR-4e1HoJ-4ojFdh-5QuMiM-541QWi-wAqyp J C Loudon 1826 An encyclopædia of agriculture London 2e edition 1831 Figure 196 Vallisneria spiralis PD-old-100 |