ON AQUATIC PLANTS. 



883 



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4f 



LiMNANTHEMUM PELTA" 



T u M ( Vil larsia nym ph~ 

 cEoides) (Fig. 585) (the 

 Fringed Water Lily) is a 

 free - growing ornamental 

 British plant, having small 

 Water Lily-like leaves and 

 pretty yellow flowers, the 

 segments of which are 

 fimbriated, giving them a 

 very attractive appearance. 

 It increases rapidly, there- 

 fore precaution should be 

 taken in planting it, or it 

 may encroach on other 

 plants. 



Myriophyllum proser- 

 PiNACOiDES (Water Milfoil 

 or Parrot's Feather). — A 

 free-growing tender Aqua- 

 tic. Its stems are densely 

 covered with very finely- 

 cut leaves, presenting a 

 pretty feathery appearance 

 as they float on the water. 

 This species is not suffi- 

 ciently hardy to with- 

 stand a severe winter, 

 and, therefore, requires the protection of a greenhouse. 



NuPHAR ADVENA is a North American species having large 

 peltate leaves and yellow flowers, 

 with reddish-coloured anthers, 

 standing well above the surface 

 of the water. N. lutea (Fig. 

 586) is the well-known yellow 

 Water Lily of our 

 ponds and rivers. 

 N. piimilum (iV. Kal- 

 miana) is a rare 

 British species, with 

 yellow flowers, and 

 much smaller in all 

 its parts than either 

 of the preceding. 



Orontium aqua- 

 TicuM (Golden 



Club).— An Aquatic Fig. 585.— Limnanthemum peltatum. 



3 L 2 



Fig. 584. — Hydrocharis morsus-ran^e. 



