15 



its claimed simplicity, adds rod in 7?. Asiafinis iVOlamht; 

 in cultivation it is a magniticcnt double flower of a bright 

 scarlet color ! 



It will be observed that this change of color is in the 

 same direction in the simple Clematis, TroUiusi and Raimii- 

 cidns, etc., as in the more specialized Columbine and in the 

 highly developed Chrysanthenmm, and that the colors do 

 not pass through white to pink, etc., which fact will be 

 especially referred to farther on. 



It may also l)c added that the simpler Clematis has more 

 purples and blues than the higher developed Aquilegia, or 

 at least as many, the latter having ten yellow or scarlet spe- 

 cies to only two purple in North American species. The 

 list of flowers belonging to this series, many exclusively so, 

 is immense. Among the number are the following, in 

 several of w^hich the red pigment may actually be seen flush- 

 ing from day to day the yellow surface of the j^etals : 

 CupJiea, Gorezema, Manetlia, Libonia, Gesneria zehrma, 

 Canna, Lantana, Tropcmlum, Tulip, Poppy, Tritoma, Es- 

 choUzia, French Marigold, Lonicera sempervirens, LachenaJia 

 Nehonii, Rosa Inlea, var. Copper Austrian Brier ift yellow 

 externally, but inside a brilliant orange-red. Taraxacurii 

 (Dandelion) and Leontodou, have the outer row of ray 

 petals, commonly a reddish-purple on the lower surface. 

 In upwards of one hundred species of Aster, the central 

 yellow florets change directly to a reddish-purple. 



Polyr/dla sanguinea and P. cruciata, have an exceedingly 

 interesting color change not noticed by any of the Floras : 

 The conspicuous color in the heads of these flowers, usually 

 a rose-purple, belongs to the sepals, Imt the small true 

 flowers are first yellow, then orange, and Anally a rose- 

 l^urple, very much like the sepals in color. All these colors 

 may be clearly seen in the same head in a bright, clear day ! 



CaMilleia coccinea, flowers, or rather the bracts, yellow 

 and scarlet. ''Garden and Forest" states that flowers of the 

 yellow American Hamamelis have been found in New York 



