72 



THE GYNAECTUM 



Position of the Style.— The position of the style often calls for scrutiny. 

 It does not always rise, as would be expected, from the summit of the 

 ovary. One process by which deviation in this particular results is 

 illustrated by Fig. 17(5, which represents the deeply lobed ovary of 

 borage, the single style rising from the depression in the center. If, 

 now, all but one of the parts of such an ovary were to become aborted, 

 the style would be seen rising more or less laterally (Figs. 177 and 

 178), or even basally (Fig. 179) from the remaining monocarpellary 

 ovary. E\'en though the styles remain separate in such a divided 

 ovary, yet their insertion is necessarily carried toward the base 

 (Fig. 180). 



m. J6'6. m js'S' /m wo 



Fig. 176. Deeply 4-lobed ovary of Boraffo. 177. Lateral style on carpel of I'VZ/oresia. 178. The same 

 in Aslronium, the style almost basal. 179. The same in Alchemilla, the style completely basal. 180. 

 The same, with none of the carpels aborted. 181. Conical style of Piper. 182. Clavate style of 

 Helianlhemum. 183. Obconical and prismatic style of Bomhax, with umbrella-shaped stigma. 184. 

 Obconical style of Chimaphila. 185. Filiform styles of Poederia. 186. Style of Potalia, with large 

 bulb-like base. 187. Filiform and pilose style of Galopina. 188. Style of Heliocharis, with subulate 

 branches. 189. Styles showing a tendency to early separation below, while remaining coherent above. 

 190. Capillary style of maize. 



Forms of the Style.— The same descriptive terms as to form already 

 applied to the filament apply equally to the style and its branches. 

 Owing to the frequency with which styles are coherent, ribbed, chan- 

 nelled, or angled forms are common. Fig. 181 illustrates the conical 

 style of Piper, Fig. 182, an obconical one; Fig. 183, one obconico- 



