228 GENERAL BOTANY 



Again in the last two generas the stigma is very 

 large and in the form of five or more brown hairy 

 ridges radiating from the centre towards the edge of 

 the ovary. In TORENIA the stigma is a curiously 

 hollow-folded structure, which closes up if touched,. 

 and in RICINUS there are three long red stigmas. 



So that there is very considerable variety in the 

 forms of the style and stigma. As a rule, the number 

 of branches into which the style divides, or of stigmas, 

 or at any rate of the lobes of the stigma, corresponds 

 to the number of cells in the ovary, or if the ovary 

 is one-celled to the number of parietal placentas. 



This however is not by any means always the case. 

 The ovary of the Sunflower is one-celled, but its style 

 branches into two stigmas. The ovary of GYNAN- 

 DROPSIS is one-celled but its stigma has two lobes. 

 That of PA VON I A has five cells but ten stigmas. 



In some genera as OCIMUM, Tulasi, the ovary is not 

 arched at the top but hollowed, and the style rises 

 from the base of the hollow not from the highest 

 point of the ovary. 



But for the different kinds of style and stigma 

 reference must be made to the actual flowers them- 

 selves. 



THEORETICAL CONCEPTION OF THE 

 STRUCTURE OF THE OVARY 



3. In C^SALPINIA, POINCIANA, CASSIA and the 

 Pea, the ovary is one-celled and the seeds or ovules 

 are arranged along one (the upper) side. We noticed, 

 too, that the ovary is not symmetrical in the plane 

 of its width, the style rising rather from one side. 



