195 



Wister (1930) uses seven color groups: 



Violet I 



Blue Magenta Lilac 



Bluish Lilac Purple 



Lilac 



Mrs. Harding (1933), two groups: 



Blue, Bluish Lavender, and Purple 

 Pink, Red, and Wine colors 



Notcutt (1936), eight groups: 



Dark Vinous Red Carmine 



Dark Purple Bluish Mauve 



Mauve Pinkish Mauve 



Lilac Pale 



A few varieties, such as Paul Thirion, have bright red buds, con- 

 trasting with the paler Mowers. As the hud opens the color spreads 

 and fades. The outside of the flower is usually more reddish, the 

 inside more bluish. The colors are best when about a third of the 

 inflorescence is still in bud. Several varieties have corollas with 

 lighter margins, giving a mottled effect to clusters; others have 

 streaks, light or dark. But the colored lilacs nearly all have more 



or less "lilac" color. 



In the present publication the lilacs are arranged in eighteen 

 groups, approximately similar to their arrangement in our collec- 

 tion. The species form Groups 1-4; hybrids of species, Groups 5 

 and 6. Of 5\ vulgaris varieties, the white ones form Groups 7 and 

 8; its colored varieties, Groups 9 to 18, colors as follows: 



Reddish Bluish 



Light- 

 colored Pk : Pink, from nearly white Lv : Lavender, mauve or light 

 to light rose: bluish: 



Groups 9, 10, 11 Groups 12, 13, 14 



Dark- 

 colored Rd: Reddish, magenta or Bl : Dark bluish or violet: 

 purple : 



Groups 15, 16 Groups 17, 18 



