ON AQUATIC PLANTS. 



891 



vigorous - growing plants may be introduced; where the ground 

 rises prominently or projects into the water these situations 

 should be furnished with those kinds that would produce the 

 boldest and most striking effect. As previously stated, groups of 

 a sort should be formed in preference to arranging a thin line 

 of plants of Various kinds around the pond, as the latter scheme 

 would produce a less natural and satisfactory appearance. 

 Groups of tall-growing plants should be judiciously interspersed 

 with those of dwarfer habit, thus giving an irregular and also a 

 more artistic effect. For the sides of small ponds or where 

 space can be afforded around tanks or fountain basins only 

 plants of medium height and moderate growth should be intro- 

 duced, a variety of which may be selected from the kinds 

 enumerated hereunder, all of which are well adapted for such 

 positions. 



Foliage Plants. — Conspicuous amongst waterside plants that 

 are valued chiefly for their ornamental foliage are the giant 



Fig. 596. — Polygonum sachalinense. 



Gunneras, G. chilensis (G. scabra\ and G. manicata, with large, 

 bold, cordate leaves, from 5 ft. to 8ft. in diameter. The hand- 

 some Rheums, R. Emodi and R. palmatum, are bold and effective 

 plants, the former with broad ovate leaves, and the latter with 



