7 8 THE AQUA TIC GA RDEN. 



placed in a flower-pot, and hidden away in rockwork, 

 as already described. The bright rose-coloured flowers 



Fig. 30. 



Arrow-head (Sagittaria sagittifolia}. 



then rise from amid the three-cornered, sword-shaped 

 leaves in large flat umbels. The root of this lovely 



