30 



GLOSSAIiV OF 



Epigynous : when inserted on the ovary (Fig. 134, .s). 



Epipetalous : when inserted on the corolla (Fig. 151). 



Epipiiyllous : when inserted on the perianth (in Monocotyle- 

 dons). 



Gynandrous : when inserted on the style, as in Orchids 

 (Fig. 157). 



Situation. 



It is important to note the position of the stamens with refer- 

 ence to the i')etals when they are of the same number as 

 the latter. They may be 



(a) Alternate with the petals. 



(b) Opposite the petals. 



THE PISTIL OR GYNCEOIUM. 

 Parts. 



Carpels : the pieces, either distinct or combined together, 

 which make np the whole pistil. The pistil is 



(a) Simple, if' it consists of one carpel only, as in Pea 

 (Fig. 158). 



(b) Convpound^ if it consists of two or more carpels, 

 either separate from each other ( apocarj^ous ) as in 

 Buttercup (Fig. 159), or combined together ( syncarpous ) 

 as in Fig. 160. When several carpels are combined, the 

 number is very commonly indicated hy seams or sutures 

 on the outside of the ovary. 



Whether composed of one carpel or several combined, 

 the pistil may have the following parts : 

 Ovary : the lower swollen part, containing the ovule or 

 ovules which develope into seeds (Fig. 160). The ovary 

 maj* be one-celled even when compound (Fig. 161), or 

 several-celled (Fig. 160). In the latter case the separat- 

 ing walls are called dissepiments, and the cells are often 

 spoken of as loculi (sing, loculus). 



Style : the narrow part above the ovarj^ (Fig. 160). A com- 

 pound pistil may have several .styles, as in Fig. 162. 



Stigma: the moist roughish upper end of the style. This 

 part differs from the rest of the pistil in having no skin 

 or epidermis (Fig. 163). 

 The stigma is 



(a) Capitate, if it forms a knob or button on the end 

 of the style (Fig. 164). 



(b) Plumose, if of a feathery appearance as in grasses 

 (Fig. 165). 



(c) Petaloid, if leaf-like and coloiu-ed, as in Iris (Fig. 

 166). 



style 



ovary 



Fig. ICO. 



Fi";, iGi>. 



Fig. 163. 



Fig-. 161. 



stigma 



style 



■ ovary 



Fig. 106. 



