223 



product of the torus, coalesced with the former. In fig. 

 VI the thing is somewhat complicated as the outgrowth 

 springing from the filament under the anther splits into 

 a style and a peduncled anther-like corpuscle. 



Finally I found in the first set of monstrous Tobacco- 

 flowers in a flowerbud of scarcely 2 c.M. in length besides 

 two normal stamens three others, of which the anthers at 

 thelr base showed a quite small spot, the very beginning 

 of the anomaly repeatedly pointed out (fig. VII). 



MiCROSCOPIC EXAMINATION. 



Although the appendages with the small knob show ail 

 the outer characteristics of style and stigma, I wanted to 

 put their true nature beyond doubt. For this reason I 

 enclosed after the necessary préparation a few spécimens 

 in parafÊne and by means of a microtome eut a séries of 

 longitudinal sections. The same thing was done with the 

 style proper. The comparison of the two sets of prépara- 

 tions showed that not a single différence could be discerned 

 between the styles proper and the style-like appendages 

 of the anther. So we may safely conclude that in our 

 Nicotiana more or less developed styles hâve grown out 

 from the anthers. 



A similar investigation was executed into the nature of 

 the brown excrescences. The supposition readily presented 

 itself that they might be made up of ovules, a supposi- 

 tion supported by two circumstances, firstly the style-like 

 appendage indubitably springs from the valves belonging 

 to différent thecae or in other words from the adjoining 

 (elther outer or inner) loculaments. From this the notion 

 arose of two carpels having been created, divided from one 

 another by the plane through the anther-splits. Where 

 there are carpels, there must or at least can also be ovules, 

 albeit at the same time with pollen in this particular case. 



