Chap. VII. 



CYCNOCHES VENTRICOSUM. 



223 



the extremity of the column, or Avhether they first 

 alight on this part of the column ; but in either case 

 they would cause the ejection of the poUinia, which 

 would adhere to some part of their bodies. 



The specimens which I examined were certainly 



Fis. 34. 



Diagrammatic Section of a Flower-bud, the column placed 



UPRIGHT. 



a. anther. ' 



/'. filament of anther. 



j d. disc of pnllinium with the dejicn- 

 1 dent curtain. 



I>. pollen-mass. ' s. stigmatic chamber. 



pil. pedicel of pollinium. barely se- | g. stigmatic canal leading to the 

 parated as yet from the ros- f ovarium, 



tellum. 



male plants, for the pollinia were well developed. The 

 stigmatic cavity was lined with a thick layer of pulpy 

 matter which was not adhesive. But as the flowers 

 cannot possibly be fertilised until the pollinia have 

 been ejected, together with the great curtain which 

 covers the whole stigmatic surface, it may be that 



