878 



THE BOOK OF GARDENING. 



grower, and may be increased by divisions of its tuberous root- 

 stock. This is one of the earHest of Marliac's hybrids, and is 

 also grown under the name of JV. tiiberosa flavescens. N. M. rosea 

 is similar to N. M. carnea, but the flowers are a trifle smaller 

 and their colour a shade deeper. A''', nitida (Siberian Water 

 Lily) has pure white cup-shaped flowers of medium size, and is 

 one of the earliest to blossom. It is somewhat similar in habit 

 to our native species, N. alba, but less vigorous in growth, and 

 does not increase so rapidly. 



N. odorata sulphurea (Fig. 580). — This and the following are 

 quite distinct from any of the other hybrids in the odorata group. 

 Although they are the very latest to commence flowering, they 

 provide a striking contrast by their more vigorous growth, by 



the size of 

 their flowers, 

 and by the 

 freedom with 

 which they are 

 produced. The 

 flowers are 

 sulphur-yellow, 

 very fragrant, 

 of the largest 

 size, and have 

 long, narrow- 

 pointed petals, 

 which give 

 them a very 

 attractive ap- 

 pearance. The 

 leaves are 

 heavily marked 

 with dull red- 

 dish-chocolate. 

 N. 0. s.grandi- 

 resembles 

 the preceding 

 in every par- 

 ticular except- 

 ing that the 

 flowers are a 



trifle larger and have a greater number of petals, which give 

 them a more double appearance. 



N. tiiberosa (Fig. 581). — A North- American species, with large 

 white flowers, of good shape, and faintly scented. This is probably 

 the most vigorous grower of any of the hardy Nymphaeas ; it 

 also increases rapidly by tuberous offsets, easily detached from 

 the creeping rootstock. For this reason it is unsuitable for 



Fig. 580. — Nymph.^ea odorata sulphurea. 



