30 



GLOS^iAJiY OF 



Epioynous : wlien inserted on the ovary (Fij;. 134, .s). 



Epipetalous : when inserte<l on tlie corolla (.Fig. 151). 



Epiphyi.loits : when inserted on the perianth (in Monocotyle- 

 dons). 



Gynani»roi;.s : when inserted on the style, as in Orchids 

 (Fig. 157). 



Situation. 



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

 ence to the petals when thej' are of the same number as 

 the latter. Thoy may be 



(a) Alternafc with the petals. 

 (h) OpjxKiite the jietals. 



THE PISTIL OR GYNCECIUM. 

 Parts. 



CARPE1.S : the pieces, either distinct or combined together, 

 which make up the whole pistil. The pistil is 



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

 (Fig. 15H). 



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

 either separate from each other (apocarpous) as in 

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

 as in Fig. IfiO. "When several carpels are combined, the 

 number is very commonly indicated hy seams or suftires 

 on the outside of the ovary. 



Whether composed of one carpel or several combined, 

 the pistil may have the following parts : 

 OvAKY : the lower swollen part, containing the ovule or 

 ONTiles which develoi* into seeds (Fig. 1<)0). The ovary 

 may be one-celled even when compound (Fig. Ifil), or 

 several-celled (Fig. 100). In the latter case the separat- 

 ing walls are railed dis.sfpivi'fits, and the cells are often 

 spoken of a.s InctUi (sing, loculwt). 



Style : the narrow part above the ovary (Fig. IGO), A com- 

 pound pistil ma}' have several styles, as in Fig. 162. 

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

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

 — ■ 1- ■•nis (Fig. HJ.'i). 

 >;ma is 

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

 of the style (Fig. 164). 



()i) PInmosr, if of a featherj' appearance as in grasses 

 (Fig. 165). 



(c) Pit<t1i,l,1. if l>'fif-like and coloured, as in Iris (Fig. 

 166). 



Fig. 167. 



style 



Flp. 159 



-ovarv 



Fif.'. 160. 



Fi^r. i<;i>. 



!• IK- I'JJ. 



Fig. l.-iS. 



Fig. liJl. 



stigma 



Rtvle 



Fig. 164." 



ovnry 



Kii.'. K^. 



