AQUATICS AND BOG PLANTS 91 



If larger grouping is needed near the waterside, some 

 of the moisture-loving shrubs will probably be found 

 useful. The following do well : 



Halesia tetraptera. 

 Cydonia vulgaris. 



Dogwoods. 

 Viburnum opulus. 



Rhododendrons. 



AQUATICS 



Plants which are suitable for pond and stream margins, 

 the roots being under water. These include flowering 

 sedges, rushes and reeds : 



Butomus umbellatus. 

 Acorus calamus. 

 Menyanthes trifoliata. 

 Iris pseudo-acorus. 

 Richardia aethiopica. 



Typha latifolia. 

 T. angustifolia. 

 Scirpus lacustris. 

 Rumex hydrolapathum. 

 Alisma Plantago. 



Phragmites communis. 

 The following should be used for deeper water : 



Stratiotes aloides. 

 Hottonia palustris. 

 Pontederia cordata. 



Villarsia nymphaeoides. 

 Ranunculus aquatilis. 

 Sagittaria sagittifolia. 



Chief among aquatics are the several forms of the hardy 

 Nymphaeas, suitable for water of varying depths. These 

 beautiful flowers are dealt with in the chapter on Water- 

 Lilies, so that it is unnecessary to recapitulate the different 

 varieties here. 



PLANTS FOR BOG AND MARSH GARDENS 

 In tubs : 

 Nymphaea pygmaea. Aponogeton distachyon. 



N. Helvola. 



Butomus palustris. 



In small bog pools : 

 Orontium aquaticum. | Calla palustris, 



