171 



plants of the royal water lily of South America, represented by two 

 species, the Amazon royal water lily, Victoria amazonica, and the 

 Paraguay royal water lily, Victoria Cruziana. These have not 

 flowered as yet. In this same pool, quite in contrast with these 

 giants among the water lilies, is perhaps the smallest water lily 

 known, Castalia tetragona, known sometimes as C. pygmaea, and 

 veiy appropriately. Its white flowers barely exceed two inches 

 in diameter, and float gracefully upon the water, miniatures in 

 appearance of our own water lily, Castalia odorata, so common 

 in lakes and ponds and slow-moving streams. It is known wild 

 in northern Idaho, Ontario and in Asia. Next to this is a beauti- 

 ful little yellow one, said to be a hybrid between C. tetragona 

 and C. Mexicana, known as Castalia tetragona helvola. Its 

 flowers, twice the size of those of Castalia tetragona, are bright 

 yellow with deep orange anthers. Both the last named are 

 hardy in the latitude of New York. In the easterly pool are 

 the hardy kinds, those which can remain permanently in their 

 present quarters. Among the white ones of these are Castalia 

 alba and its variety candidissima, of Europe, a close relative of 

 our own water lily, Castalia odorata, but more sturdy and hence 

 not so dainty. Most of the lilies in this pool are of hybrid 

 origin, and some of these are rich and deep in color. Among 

 those with yellow flowers are : Castalia odorata sulphurea, and 

 especially noteworthy and a general favorite, Castalia Marliacea 

 chromateila. Among the flesh-colored ones, Castalia Marliacea 

 cornea perhaps takes the lead. Among other desirable sorts 

 are : Castalia aurora, with the flowers yellowish rose at first, 

 changing later to a deep red ; Castalia gloriosa, one of the best, 

 with large deep red flowers ; Castalia James Bryson, with the 

 flowers smaller, but otherwise much like those of gloriosa ; Cas- 

 talia Wm. Falconer, with its rich garnet flowers, Castalia Seignoreii, 

 with the flowers yellow, shaded with rose and carmine ; and Cas- 

 talia Laydekeri, in the varieties rosea and purpurata, the colors 

 indicated by their varietal names. 



