33 



centre and at the base of the rays ! Hieracmm aurantiacum 

 <>-oes from yellow to orange. P(frethrum uh'gmosum, ray.s 

 white, has central florets of a green color, the minute lobes 

 only are tipi)ed with black I 



Florists' varieties of Chinese Chrysanthemums, Dahlias, 

 etc., have innumerable hues. 



CHAPTER YT. 



Where yellow flowers niaj' be found : 



Helleborus, several species absolutely green, and NigeUa 



Nigellastrum, flowers brown and green I 

 Aqailegia has several handsome bright yellow species, 



and notwithstanding that this flower is highly spe- 

 cialized. A. viridifora is green flowered I 

 iJelphlnium has one section consisting of species with 



calyx and petals of different colors, the petals being 



wholly or partly yellow. 

 Acoiiitum, in section of flbroiis roots, thirteen species or 



varieties are yellow or cream color, only six ])urple, 



but in section of tuberous roots are mostly blue or 



violet. 

 Anemone and Hepatka, very simple flowers, mostly blue, 



purple or white. 

 Clematis, chiefly l)lue, jxirple or white with very few 



yellows generally of a dull color. 

 Ranuncvhis, mostly yellow, has many whites, also pink 



and purple. 

 Paeonia, though of the llanunculaceua, appears to have 



no 3'ellow flowered species ! 

 Caltha, conmionly yellow, has species rose tinted or 



bluish. 

 All of the al)ove belong to Ranunculace;e. 



