Pappus 



105 



spurred (fig. 167), as in the TropEeolum ; galeate or hooded 

 (fig. 172), as in the Monkshood. 



When the calyx is polysepalous, it should be described as 

 bisepalous, trisepalous, etc. If gamosepalous, it may be de- 

 scribed as toothed, lobed, or incised, according to the depth to 

 which it is cut. 



Fig. 173.— Pilose sessile pappus of 

 Senecio, 



Fig. 172.— Monkshood {Aconitum Napellus). 

 Part of plant, showing galeate calyx. 



Fig. 174. — Pilose stipitate pappus 

 of Dandelion. 



A remarkable form of calyx known as pappus is met with 

 amongst the composite and some other flowers. In this case 

 the sepals are converted into numerous hairs, which crown the 

 ovary, and are often very much enlarged upon the fruit, as is 

 seen in the head of the Dandelion after flowering. 



The hairs may be either simple when the pappus is pilose 



