Based mainly on the present investigation and combined with the other evidence,it is suggested that Farfugium should not be related to the Ligularia,and Nannoglottis should be near to the Astereae.

• 根据花粉超薄结构类型，结合其它有关方面的研究，认为大吴风草属与橐吾属并不近缘，而毛冠菊属可能接近于紫菀族。