32 



white, chaiiffino; through pink to crimson or y)urplo and 

 fading to blue-i)urple. 



Lonicera longiflora, i)ure white changes to pure yellow I 

 and several other species of different colors become 

 decidedly yellowish with age. 



Loniceras have a strong tendency to yellow as seen by 

 the following descriptions : cream colored, yellowish-white, 

 greenish-yellow, greenish-yellow tinged Avith dull purple, 

 yellow tinged with red, scarlet outside and yellow within, 

 scarlet, whitish with a purple tube fading yellowish, at first 

 snow-white but finally changing to golden yellow I 



Composite flowers, having different shaped flowers in the 

 same head have different color changes : Bellis, the daisy, 

 Chrysanthemvm, etc., change the central, tubular, yellow 

 florets to white, ligulate ray petals, which often become pink 

 or in some genera purple or blue ; other genera change the 

 tubular to ligulate without change of color as in Rudbeckia , 

 Coreopsis, Bnhhvinia and Helenivm, but do change the 

 central florets to brown or brownish-purple ; in others the 

 yellow rays change to some of the following colors : l)rown, 

 brownish- red, maroon, copper colored or dark red-purple 

 as in Coreopsis coronata, G. Ilarvei/ana, Heleniwn elegaits 

 and 11. midijiorufn and in several species of GaiUardicr, 

 Df/sodia, Psathyrotes, Troximon, Lactuca, JVabahts, etc. ; 

 in Erigeron bellidifolius, the central florets turn a rust}' 

 color ; in Sericocarjms con yzo ides the central florets are 

 never yellow, but pink-purple usually changing to white, 

 while Cineraria, at least in ordinary varieties, has both 

 rays and centre of same color, viz. : crimson, lilac, purple 

 or blue, and never yellow I Asters have rays of different 

 colors from their centres, which last commonly change 

 from yellow to a vinous purple. 



Even when the two kinds of flowers in the same head 

 have similar colors, the variegation in some species is 

 exactly reversed, as in Gaillardia and Coreopsis, the purple- 

 brown color being at the tip of the yellow corollas of the 



