94 REPRODUCTIVE ORGANS. CHAP. III. 



) and the corollas contained in the calyx are 

 generally denominated florets. 



Modifica- Like the calyx the corolla consists either of a 

 single piece, as in Campanula (PI. IV. Fig. 7.) ; 

 or of several distinct pieces, called petals, as in 

 Galanthus. (PL IV. Fig. 8.) If it consists in a 

 single piece, it is said to be monapetalous ; if of 

 more than one piece, it is said to be dipetalous, 

 tripetalous, or polypetalous, according to the 

 number of distinct pieces. It is to be remarked 

 however, that in the husk-like corolla of the 

 grasses, as in their husk-like calyx, the petals are 

 denominated valves., which differ from those of 

 the calyx only in their being proper to a single 

 flower, or in their immediately investing the 

 ovary. 



Monope- ^ ne monopetalous corolla, like the monophyllous 

 talou?, calyx, is divided also into three parts the tube, 

 the mouth, and the border. The tube is upright 

 and cylindrical, as in the Periwinkle and Prim- 

 rose ; or it is bent and crooked, as in Lycopsis ar- 

 vcnsis ; or inflated, as in Orobanche ramosa \ or 

 appendicled, that is furnished with leaf-like ap- 

 pendages, ^as in Cmcnla europtfa. The mouth is 

 frequently beset with fine hairs, or small project- 

 ing scales, in which case it is said to be shut, as in 

 Cynoglossum officinalc ; or it is entirely without 

 hairs or scales, in which case it is said to be open 

 or naked, as in Echium vulgar e. The border is 

 erect, or rather concave, as in the Cowslip ; or it is 



