GENERAL FORMS 



137 



Trumpet-shaped ttowei 

 of morning-glory. 



a wide-flaring limb, when it is said to be trumpet-shaped, 



as in morning- glory (Fig. 217) and pumpkin. If the tube 



is very narrow and the limb stands 



at right angles to it, the corolla is 



salverform, as in phlox (Fig. 218). 



If the tube is very short and the limb 



wide -spreading and nearly circular in 



outline, the corolla is rotate or wheel- 

 shaped, as in potato (Fig. 219). 



273. A gamopetalous corolla or 



gamosepalous calyx is often cleft in 



such way as to make two prominent 



parts. Such parts are said to be 



lipped or labiate. Each of the lips 



or lobes may be notched or toothed. 

 In 5-merous flowers, the lower lip is 

 usually 3-lobed and the upper one 

 2-lobed. Labiate flowers arc char- 

 acteristic of tlif mint family (Fig. 

 197), and the family therefore i> 

 called the Labiatae. (Properly, labi- 

 ate means merely lipped, without 

 specifying the number of lips or 

 lobes; but it is commonly used to 

 rwers.) Strongly 2-parted 



polypetalons flowers may be said to be labiate; 



but the term is oftenesl used for gamopetalous 



corollas. 



271. Labiate gamopetalous flowers which are 



closed in the throat (or entrance to the tube) 



are said to be grinning or personate (personate 



means masked, or person-lih ). Snapdragon is a v ;];;; % ,';'' ;;;. 



typical example (Fig. 220) ; also toad Max or 1,u "^ 

 butter -and -eggs (Fig. 211), and manj related plants. 

 Personate flowers asnalh have definite relations to inseel 



219. 



Rotate flowert oi 



potato. 



designate 2-lipped 



