io6 



Elementary ' Botany 



(figs. 173 and 174), or featherywhen tt is plumose (figs. 175 

 and 178). Again, they may be sessile upon the ovary (figs. 

 173 and 175), or stalked, when they are said to be stipitate 

 (figs. 174 and 178); so that there are four forms of pappus, 

 viz. : — 

 - Pilose sessile, as in Groundsel. 



Pilose stipitate, as in Dandelion. 



Plumose sessile, as in Salsify or Goatsbeard. 



Plumose stipitate, as in Thistles. 



Fig, 175." Plumose 

 sessile pappus of 

 Tragopogon, 



Fig. 176.— Deadly Night- 

 shade {,A tropa Bella' 

 domtd) \ flower. 



Fig. 177. — Bilabiate 

 five-toothed calyx 

 olLamium. 



^Vl •:■■% \i}i i i: 



m 



Fig. 178.— Pappus of Carlina mUgaris. 

 the feathery rays united below into 

 several bundles and coherent at the base 

 into a ring. 



Fig. 179.— Fruit, 7^ of the Tansy 

 ( Tanacetum vulgare), sur- 

 mounted by the coronate 

 pappus. 



In the Chicory and Tansy (fig. 179) the pappus is coronate, 

 forming a crown of broad hairs above the fruit. 



Corolla. — The second enveloping layer of the flower is 

 generally more delicate in its 3tructure than the calyx, and is 



