THE GARDEN STOCK 



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case the flowers at the bottom are the oldest, those next 

 above them are younger and so on until at the top the 

 youngest flowers are still in bud. Each flower arises 

 independently of a leaf and is attached to the stem by 

 a short stalk or pedicel (Fig. I, p). Such an inflorescence 

 is termed a raceme. 



Examine the parts of the flower, commencing at the 

 outside. Remove the parts one by one and lay them out 



3 UJ 4 



Fig. 3. Dissection of a Stock Flower. 1, Vertical section 

 01 flower ; 2, petal removed ; 3, stamen removed ; 4, transverse 

 section of ovary; 5, pistil; a, anther; cl, claw; /, filament; 

 g, pistil; k, calyx; I, limb; n, nectary; 0, ovary; ov, ovule; 

 p, petal ; pi, placenta ; r, receptacle ; re, replum ; s, stamen ; 

 st, stigma ; sy, style. 



before you so as to show their interrelations. The portion 

 of the stalk on which these parts are borne is called the 

 receptacle (Fig. 3, r). On the outside are four erect distinct 

 green leaves ; these are called sepals, and together form the 

 calyx (k). They serve to protect the inner parts when the 

 flower is in bud. When the sepals of a calyx are distinct 

 or free one from another, the calyx is said to be polyse- 

 palous (Gr. polys = many). Note that two of the sepals 



