•_'t 



GLOSSARY OF 



THE FLOWER. 

 Parts : 



Calvx : the outer st>t of tiowor-lenves, usually green or j^reen- 

 ish, as in ButttTcuj* (Fig. 1 lOi. 



The pieces of which the calyx is made up are called 

 sepals. 



CoRfiLLA : the second .set of tiower-leaves, immediately within 

 the calyx, and usually some other colour than gi-een 

 (Fig. 110). 



The pieces of which the corolla is made up are called 

 Pttiils. 



These two sets taken together are known as the Floral 

 Envflofttfi, and al.so as the Perianth, but the hitter term 

 is generally restricted to the flowers of Monocotyledons, 

 such as Lilies, where the parts are very much alike. 

 Some flowers of Dicotyledons, such as Marsh-Marigold 

 (Fig. Ill), have only one set of floral enveloj>es, and this 

 is then nearly always the calyx, no matter what its 

 colour is. 

 Stame.ss or AsnKiFX'ir.M : the third set of flower-leaves, 

 apfiearing as thread-like stalks with thickened ends (Fig. 

 1 12). These produce the pollen. 

 PlwrJL or GvX(K(.'iUM : the central organ of the flower which 

 bears the seed. It may be in several pieces, as in Butter- 

 cup (Fig. 113), or in one piece as in Shepherd's Purse 

 (Fig. 114). 



These last two sets taken together are the Essential 

 Organs of the flower. Tliey alone are directlj' concerned 

 in the production of seed. The floral envelof)es protect 

 the essential organs, and attract insects which help to 

 distribute the pollen. 

 Hweptacle: the enlarged top of the peduncle to which the 

 parts of the flower are attached. 

 Note also the following points : Flowers are 



fa^ pKHKFxrr, if they have both stamens and pistil, 

 wlu'flur calyx and corolla are present or not. 



(I,, T\ii.i i.i li-r ;f ••tt})er stamen'^ "^t vi^^'i! ■•^ wanting. 



And .ire 



(I) Slaminate, if they bear stamens, but not pistil, 

 as in Willow (Fig. 115). 



(■2) Pistillate, if they bear pistil.s, but not stamens, 

 as in Willow (Fig. llfi). 



(3) y. .''-./ ri...,i, .,...,,..., .,,..] pistil are absent, 



(I) ■' I !• md pistillate flow*er8 



are borne on the same plant, as in Cucumber and 

 Indian Com. 



Corolla. 



Calyx. 

 Peduncle. 



Fig. 110. 



Fl?. 111. 



Fig. 112. 



Fig. 11& 



Fig. 114. 



Fig. Wh. 



Fig. llfl. 



