Hybrids and Garden Varieties. 229 



Section II. Nymphaeae syncarpiae. 

 Subgenus III. CASTALIA. 



Chamaenymphaea X Xanthantha. 



11. N. tetragona X mexicana (=A7. pygmaea helvola Marliac; N. tetragona 

 helvola Conard 1901a; Froebel Cat. 1901). In shape and size of all the parts like 

 N. tetragona, with the color in leaves and flowers of N. mexicana. The caudex bears 

 many lateral buds, but no runners. Sterile. Produced by Marliac about 1890; intro- 

 duced into America about 1892. 



Chamaenymphaea X Eu-castalia. 



12. N. tetragona X alba? (= N. pygmaea alba Marl., in part). Resembles 

 N. tetragona in shape and size of flowers, but the leaves are broader and more rounded. 

 The caudex bears no side shoots. Sterile. Sent out by Marliac as N. pygmaea alba in 

 1893 ; but in other places he uses this name apparently as synonymous with N. tetragona. 



13. N. tetragona X alba rubra? (= N. Laydekeri rosea Marliac; N. Layde- 

 keri Hort.). Closely resembles N. tetragona, except in color of flowers; these are of 

 a delicate pink color on opening, changing to rose and deep carmine-rose on succeed- 

 ing days; this character is drawn from N. alba rubra. Sterile and without side 

 shoots. Introduced by Marliac about 1891. N. laydekeri rosea prolifera Tricker is a 

 fasciated form of the above, producing a great many lateral buds. Introduced by 

 Henry A. Dreer Co., 1901. N. laydekeri lilacea Andre (1895 a, col. plate) (= N. 

 liliacea Gard. and For. 1895, p. 277; N. lilacina 1. c. 1897, p. 316; N. Laydekeri liliacea 

 Tricker in Dreer Cat. 1902) has flowers of a soft rosy lilac, shaded bright carmine, with 

 yellow stamens; otherwise as above. Raised by Marliac; introduced into the United 

 States in 1895. 



Eu-castalia X Xanthantha. 



14. N. odorata X mexicana (=A7. odorata sulfurea Marliac; N. sulfurea 

 Hort.). The flowers are intermediate in size, shape of parts, and color between 

 the two parents; the leaf combines the copious brown blotching of N. flava with the 

 deep red under surface of N. odorata. Rhizome slender, nodose, yellow. Sterile. 

 Obtained by Marliac about 1888, and exhibited by Lagrange at the Trocadero in 1889. 

 Published with colored plate in Revue Horticole 1890 b. About 1899 a larger form 

 was sent out by Marliac under the name of N. sulfurea grandiflora. 



15. N. odorata rosea X mexicana? (=A7. arc-en-ciel Marliac 1901). Known 

 to us only by catalogue description, but apparently of this parentage. " Leaves varie- 

 gated with several lively and distinct tints. * * * The sweet scented flowers are of a 

 salmon-white color, with sepals splashed with rose color." 



