THE PLOEAl ENVELOPS, OB PERIANTH. 

 318 Sli 816 



Forms of corollas. 812, Cheiranthus (stock). 818, Silcnc rcgia (scarlot catchfly). 814, Pyrua 

 coronaria. 815, Amaryllis (Atamasco lily). 



474. Papilionaceous, butterfly-shaped ; a corolla consisting of five 

 dissimilar petals, designated thus : the upper, largest, and exterior pe- 

 tal is the banner (yexillum) ; the two lateral, half-exterior, are the wings 

 (alee) ; the two lower, interior petals, often united at their lower mar- 

 gin, are the keel (carina). The flowers of the pea, locust, clover, and 

 of the great family of the Leguminosae in general are examples. 



816 317 818 



S16, Papilionaceous flower of the Pea. 317, Displayed ; v, the v.esillum ; o, a, the t 

 carinaa. 818, Section of flower of Diceotra CucuUaria. 



e ; Ct Cy the 



475. Rotate, wheel-shaped or star-shaped, is a monpetalous form, 

 with tube very short, if any, and a flat, spreading border, as the calyx 

 of chickweed, corolla of Trientalis, elder. It is sometimes a little ir- 

 regular, as in mullein. 



476. Cup-shaped, with pieces cohering into a concave border, as in 

 the calyx of mallows, corolla of Kalmia, etc. 



477. Campanulatb or bell-shaped ; when the tube widens abrnptly 

 at base and gradually in the border, as in the harebell, Canterbury bell. 



