BYSTASI8. 



310 



there was no separation of the apparent cell, such as takes 

 place in some instances, at least under similar circumstances 

 in Musci. The pressure shews the canal of the style to be 

 continuous with the obscure slit-like cavity seen in Fig. II. 



In the young unfecundated ovary, the style is certainly 

 closed, the termenal cell looking as if forming part of the 

 canal : this on reaching the ovarium becomes dilated like a 

 thermometer bulb : there is no appearance of a* distinct body 

 within. 



In all these respects ; such as stucture, closure of the 

 virgin style, evident canal, and its obvious dilatation in the 

 ovary, it agrees exactly with Musci, see Valentines : Paper 

 Linn. Trans, etc. etc. 



Query is the advanced stage of this period antecedent to 

 the appearance of the embryo ? 



Systasis PI. LXXV. A. Fig. I. 



1. Female flower and minute Perianth. Involucrum re- 

 moved. 



2. Plan of the same; perianth intended to be open in order 

 to shew the pedicel on which the Pistilla are arranged. 



3. Youngest and outermost Pistilla of the above, looked as 

 if consisting of 4 rows of cells, with a wide canal between. 



4. Another more advanced. 



5. Ditto ditto ditto. 



6. After browning of the apex of the style, but not after 

 dehiscence. The canal is seen on pressure to communicate 

 freely with the opaque cavity in the ovary. Spirality of the 

 apex commencing. 



7 After dehiscence of apex ; now an evident appearance 

 of a central body in this, evidently nucellar. 



7. Fecundated Pistillum. It is the central one of the 

 group. 



7«. Rudimentary seta, 7b. Style, J M. 



8. Ditto Ditto i M. 



