72 



COROLLA. 



2. Hypocrateriform, with a border like the preceding, but 

 with a long tube, (fig. 67.) 



3. Infundibuliform, (fig. 68,) or Funnel shaped, having a 

 regularly expanding tube, as in the Convolvulus. 



4. Campanulate (fig. 69) with the tube swelling at the base 

 and then gradually expanding into a limb. 



5. Labiate. When the corolla is separated into two une- 

 qual divisions called the anterior, or lower and posterior or 

 upper lips, (fig. 70,) as in the Mint. 'Yho, Personate coyoWh 

 differs from the Labiate only in having the throat closed by 

 a projection of the lower lip (fig. 71.) 



6. Urceolate or pitchei'- shaped, the same as campanulate, 

 but with the orifice contracted and an erect limb (fig. 72.) 



Many other terms have been applied to various modifica- 

 tions of forms of the gimopetalous corolla, but our space for- 

 bids our extending the list bevond the most common and there- 

 fore most importaiit forms. 



82. In Polypetalous Corollas each petal consists of a limh 

 or lamina and unguis or claw. The claw is the narrow part 

 of the petal by which it is attached to its support, and cor- 

 responds to that part in the gamopetalous corolla, which forms 

 the tube and is the petiole of the leaf. The limh is the dilated 

 portion of the petal supported by the claw, and is the lamina 

 J of the leaf. The claw is not al- 



ways present ; when it is present the 

 petal is said to be unguicuJate, 

 83. The terms applied to the dif- 

 I^^^m^^^^feA^ ferent forms of the polypetolous co- 



rolla, are 



1. Rosaceous when there are sev- 

 eral spreading petals without claws 

 as in the Rose or Apple, (fig. 73.) 



2. Lilliaceous when the petals 

 stand side by side with the claw 



