THE COROLLA. 



287 



names, from the form or arrangement of their floral envelopes, 

 especially of the corolla. Among the regular forms (295) we 

 may mention the rosaceous flower, like that of the Rose, Apple, 

 &c., where the spreading petals have no claws, or very short 

 ones ; the liliaceous, of which the Lily is the type, where the claws 

 or base of the petals or sepals are erect, and gradually spread to- 

 wards their summits ; the caryophyllaceous, as in the Pink and 

 Silene, where the five petals have long and narrow claws, which 

 are inclosed in the tube of the calyx ; and the cruciate, or cruci- 

 form, which gives name to the Mustard Family (see Ord. Cru- 

 ciferse), where the four unguiculate petals, diverging equally from 

 one another, are necessarily disposed in the form of a cross, as in 

 the Mustard, &c. Among the irregular polypetalous flowers, 

 which are greatly varied in different families, the papilionaceous 

 or butterfly-shaped corolla of the Pea tribe has already been de- 

 scribed (468). 



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 

 degree of union is unequal (468). Among the former are the 

 campanulate, or bell-shaped, as the corolla of the Harebell (Fig. 

 364), which enlarges gradually and regularly from the base to the 



summit ; the infundibuliform, or funnel-shaped, where the tube 

 enlarges very gradually below, but expands widely at the summit, 

 as in the corolla of Morning Glory (Ord. Convolvulacese ) and the 



FIG. 364. Campanulate corolla of Campanula rotundifolia. 365. Salver-shaped corolla of 

 Phlox. 366. Labiate (ringent) corolla of Lamium ; a side view. 367. Personate corolla of 

 Antirrhinum. 368. Personate corolla of Linaria, spurred at the base. 



