THE FLOWER. 
Ill 
irregular corollas, which are described generally as 
anomalous . There is an interesting tribe of plants 
Fig. 180 
known as orchids, which present many anomalous 
forms of corolla; Fig. 179 is an example, Fig. 180 
being a separate flower from the same plant. Anoma¬ 
lous flowers should be further described as polypeta- 
lous or gamopetalous, for they occur among both these 
forms. 
EXERCISE XXXIV. 
Kinds of Gamopetalous Corollas, Keg alar and Ir¬ 
regular. 
Before you go any further with your study of the 
forms of corollas, you must look more closely at the 
parts of such ones as are shown in Figs. 181 and 182. 
Tube.— That part of the corolla, whether long or 
short, in which the petals are united together, as 
shown in the figures. 
Limb, or Border.— The upper part of the corolla, 
where the petals are not united. 
Throat.— The opening into the tube. 
