ON AQUATIC PLANTS. 



879 



planting in very small ponds or tanks, unless the roots are 

 confined to restricted limits. IV. t. rosea is a very desirable 

 variety of the preceding, the colour of the flowers being of a 



Fig, 581. — Nymph.^a tuberosa. 



pleasing tint of pale rose ; it is, however, not so vigorous in 

 growth as the type. 



Group II. — JSF. caroliniana ?iivea has large, fragrant, white 

 flowers, with numerous long, narrow petals, and is a very 

 desirable hybrid. N. c. perfecta is similar to the preceding, but 

 the flowers are of a charming soft pink or flesh-colour. 



N. Laydekeri fulgeiis is a very fine hybrid, having flowers ot 

 a brilliant purplish rose, with bright orange stamens. N. L. 

 Ulacea is a hybrid of slender habit, but exceedingly pretty ; the 

 flowers are of medium size, very freely produced, and are of a 

 rosy-lilac, with orange stamens N. L. purpiirata is more 

 vigorous in habit than the preceding, and a very attractive and 

 free-flowering hybrid ; the blossoms are of medium size, purplish- 

 red, with deep orange stamens, and very fragrant. N. L. rosea 

 is one of the most effective of the small-growing hybrids. It 

 produces with remarkable freedom its charming rosy-pink flowers, 

 which with age deepen considerably in tone of colour, and it is 

 one of the earliest to blossom. 



