Floivers and their Parts 



III 



to the stalk. It can be located by cutting the stalk just below 

 the flower. 



The calyx tube catches honey. If the calyx tube is 

 attached to the ovary, the gland is borne at the top of the 

 ovary, as in the Carrot family and Mesenibryant/iemum. 



Arrangement of Flowers on the Stalk. — Anthotaxy ^ 

 is a term applied to the arrangement of flowers as phyllotaxy 

 applies to leaf arrangement. 

 Some of our large flowers, 

 as Hypoxis stellata (Pea- 

 cock's Eyes) are borne singly 

 on the end of the flower 

 stalk. Others, as Malva- 

 striim and Hermania^ are 

 borne singly in the axils of 

 the leaves ; the stem can 

 then continue to lengthen. 

 If the peduncle of flower 

 stalk arises from the ground 

 and bears hardly any or no 

 leaves it is termed a scape. 

 Fig. 121 shows a scape 

 bearing a cluster of flowers. 

 The ovary of each flower 

 is sessile, or borne close 

 upon the stem. The antho- 

 taxy is a spike. 



A raceme has the 

 flowers attached to the main 



stalk or axis by a short stalk. If the lower stalks are lengthened 

 and the upper ones shortened, the raceme is a corymb. If 

 the stalks themselves are branched, the inflorescence is a 

 panicle. This is common in the grasses, the grape, and the 

 olive. 



The spike and raceme have a lengthened axis. A 

 capitulum or flower head has a shortened axis and sessile 

 flowers, as in the Everlasting family and Protea ; for here 



^ Anthotaxy is a recent word for the more famiUar term Inflorescence. 



Fig. 123.- 



-Corymbose raceme of Ornitho- 

 galtiin thyrsoidcs. 



