CARROT FAMILY 



of florets arise from the same point; there are usually 

 eight to ten of these flower-stems each bearing an 

 umbel called an umbellet. These umbellets are usu- 

 ally half an inch across and number about twenty 



Golden Meadow-Parsnip. Zizia aurea 



florets, which are yellow; calyx, corolla, tiny filaments, 

 and minute anther all yellow, and the effect is glowing. 

 The shape of the umbel varies from a half-hemisphere 

 to globular. At the point where the flower-stems arise 

 there is usually, in umbelliferous plants, a group of 

 green bracts called the involucre. In the Meadow- 



172 



