FUNGI ON FISH. 



73 



flowering rush (Butomus umbellatus), the water mint 

 (Meutha aquatica), mare's tail (Hippuris vulgaris), 



Fig. 27. 



Mare's Tail (ffifpuris vulgaris). 



and others. Our native vegetation offers consider- 

 able choice, and for the beauty of the foliage and 



