NVMPH.-EACE.E. 3 1 



tinction. In Nuphar, the parts of the flower — sepals, petals, 

 stamens — are closely crowded on a raised fleshy disc surround- 

 ing the base of the seed-vessel ; while in Nymphaea they are 

 more loosely arranged, and spring direct from the base and 

 sides of the seed-vessel ; itself There is, moreover, so far as 

 I know, no hardy yellow-flowered Nymphaea, whereas all the 

 hardy cultivated Nuphars are yellow-flowered. 



N. advena (Stranger Yellow Water-Lily). — The leaves are 

 deeply heart-shaped, with widely-spreading lobes ; the calyx is 

 usually composed of six sepals. Flowers in July and August. 

 Native of N. America. 



N. Kalmiana {Canadian Yellow Water-Lily). — The leaves 

 are deeply heart-shaped, with spreading lobes, and the calyx 

 has usually only five sepals. Flowers in July and August. 

 Native of Canada. 



N. lutea {British Yelloiv IVater-Lih^. — Leaves larger than 

 in either of the foregoing, deeply heart-shaped, with overlapping 

 lobes. The calyx composed usually of five sepals. This is 

 the best known of the Yellow Water-Lilies, being a native of 

 our own country, but found also in Europe generally, and in 

 northern and central Asia sparingly. 



N. minima, syn. N. pumila {Smaller Yelloiv Water-Lily). — 

 This is regarded as a diminutive variety of the last species. It 

 is found in some of the mountain-lochs in the N. of Scotland, 

 and differs from the species only in respect of size, and would 

 be found more suitable for shallow waters and the margins of 

 deeper lakes. 



Nymphaea ( JVhite Water-Lily). — The petals, being numerous, 

 and inserted on the side of the seed-vessel in a freer manner, 

 give the flowers a more graceful appearance than those of 

 Nuphar have. Few objects are more graceful and interesting 

 than well-cultivated Nymphaeas, and our own British Water- 

 Lily is scarcely inferior to those of the tropics. It should be 

 cultivated in every piece of water in the country, where orna- 

 ment is an object. 



N. alba {Common White Water-Lily).-;— This is our native 

 species, and it enjoys rather a wide geographical range over 

 Europe and central and northern Asia. The leaves are deeply 

 heart-shaped, the lobes overlapping. Flowers in June, July, 

 and August. 



N. nitida {Shiniiig-leaved White Water-Lily). — The leaves 

 are roundish-oval, heart-shaped ; the lobes open, deep, and 

 spreading. Flowers in July and August. Native of Siberia. 

 Not often seen in gardens in this country, but worthy of exten- 

 sive favour. ' 



