THK COROLLA. 



277 



claws, which are enclosed in the tube of the calyx ; and the cruciate, 

 or cruciform, which gives its name to the Mustard family, where 

 the four unguiculate petals, diverging equally from one another, 

 are necessarily disposed in the form of a cross, as in the Mustard 

 (Fig. 40o). Among 



the irregular polypeta- n7 ~--i!""\ s~ /< ^- 



lous flowers, which are ^E^|f''~ 



extremely varied in 



different families, the 



papilionaceous or but- . i53 i5i A5i 



terflyshaped corolla of the Pulse family is the most familiar, and 



has already been illustrated (471, Fig. 392). 



510. Several forms of the gamopetalous corolla, or gamophyl- 

 lous calyx, have been distinguished by particular names. These 

 are likewise divided into the regular, where their parts are equal in 

 size, or equally united ; and the irregular, where their size or de- 

 gree of union is unequal (471). Among the former are the cam- 

 panulate or bell-shaped, as the corolla of the Harebell (Fig. 45G), 

 which enlarges gradually and regularly from the base to the summit ; 



the infundibidiform, or funnel-shaped, where the tube enlarges very 

 gradually below, but expands widely at the summit, as in the corolla 

 of Morning-Glory (Fig. 1035 and 452) ; tubular, where the form is 

 somewhat cylindrical throughout, as in Trumpet Honeysuckle ; hypo- 

 crateriform (more correctly hypocraterimorphous), or salver-shaped, 



Rotate or wheel-shaped and five-parted corolla of the Bittersweet (Solanum 



FIG 453. 

 Dulcamara) 

 FIG. 454 

 FIG 455 

 FIG 456 



Wheel-shaped and five-cleft corolla of the common Potato. 



The almost entire and open bell-shaped corolla of a Ground Cherry (Physalis). 



Canipanulate corolla of the Harebell, Campanula rotundifolia 457 Salver- 

 shaped corolla of Phlox. 45S. Labiate (ringent) corolla of Lamium ; aside view 459. Per- 

 sonate coivlla of Antirrhinum 4C0. Personate corolla of Liuaria, spurred at tho base. 



' 24 



