252 THE GARDENER. [June 



where they are to grow, but a more certain way is to sow them in 

 shallow pans or pots, and gently drop them into the water after they 

 have been well wetted to prevent displacement of the seeds. The only 

 care afterwards necessary is the prevention of injury by waterfowls or 

 floods till the plants have made some growth, when they will care for 

 themselves. No pricking off nor transplanting from the seed-pan is 

 necessary in the method described ; they quickly spread away from 

 it, and root and extend freely in all directions. 



Nuphar, Yellow Water-Idly. — In foliage, and mode of growth this 

 group does not differ essentially from the Nymphseas, but in the struc- 

 ture of the flowers there is an easily-recognised distinction. In 

 Nuphar, the parts of the flower — sepals, petals, stamens — are closely 

 crowded on a raised fleshy disc surrounding 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 Yellow Water-Lily. — 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 Yelloio 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. 



Nympluea, White 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 ornament 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 



