50 



MORPHOLOGICAL BOTANY. 



All the kinds of calyx are represented in the following 

 table. 



Calyx i 



_. , , _ , f Regular Dialysepalous Calyx. 



Dialysepalous Calyx i , , „. „ , 



1 Irregular Dialysepalous Calyx. 



Regular Gamosepalous Calyx. 



Irregular Gamosepalous Calyx. 



\ Gamosepalous^ Calyx j 



Pia. 58. 



Parts. — Although the sepals are modified leaves, yet 

 commonly they are not provided with those portions corres- 

 ponding to the petiole and sheath. 

 In a gamosepalous calyx, the part 

 where the sepals are united is called 

 the Tube, the free border the Limb, 

 and the opening of the tube the 

 Throat (Fig. 59). Sometimes the fimb 

 of the calyx is developed in the form 

 of scales or hairs called Pappus, as in 

 the Tampopo (Taraxacum officinale) 

 (Fig. 58) and Shion (Aster tataricus). 



THE COROLLA. 



OThe CoroUa is the inner floral 

 envelope situated within the calyx and 



Fl % 5 e 8 - T ;m 1 p o W po 0f ^ is composed of flattened usually 

 (Taraxacum officinale), colored organs called Petals. 

 Duration of the Corolla. — The duration of the 



corolla, like that of the calyx, varies in different plants. 



It is either Caducous, as in the Budo and Yabukarashi 



(Vitis pentaphylla) , Deciduous, as in the Mume and Keshi, 



or Persistent, as in the Doku-utsugi. 



/ Caducous. 

 DURATION OF THE COROLLAI Deciduous. 



* Persistent. 



