266 Agricultural Experimext Statiox, Ithaca, N. Y. 



like No. 13 (Fig. 88) gives the general effect of hairiness, and it 

 takes a second look to determine that the individual florets are 

 irregularly cut, but do not have hairs or trichomes, as do florets 



4 and 5. 



Cataloguers should distinguish between a floret and its margin. 

 For example, a reflexed floret may also have its margins reflexed 



89._\\ . \v. Asior. I our iifihs natural size. 



(No. 2); an incurved floret may be ligulate (No. 6), tubular (No. 

 13), or have its margins incurved (No. 7). Unfortunately, it is 

 impossible to indicate such various degrees of tubularity as are 

 successfully presented by the florets No. 13 to 7. Nos. 12 and 13 

 are properly called tubular and No. 11 quilled. The ligulate 

 form of petal is conceived to have been originated by the splitting 



