GENERAL REMARKS. 259 



2. The following are the results of analysis of this subject. 



FERNS. 



No Pistilla — No apparent fecundation. — Product of deve- 

 lopement similar. 



ISOETES. 



No Pistilla. — No apparent fecundation. — Product of de- 

 velopement laterly dissimilar — (abortive sporules). 



MARSILEA. 



No Pistilla. — No apparent fecundation. — Products of de- 

 velopement, absolutely dissimilar from an early period. 



AZOLLA. 



Pistilla, or ovula. — Traces of fecundation. — Products of de- 

 velopement absolutely, but irregularly dissimilar. 



ANTHOCEROS. 



No Pistilla. — Fecundation. — Product of developement si- 

 milar, anisochronous. Antheridia confervoid. 



MUSCI AND HEPATICiE 



Pistilla, ovula, fecundation.— Product of development si- 

 milar. Antheridia. 



CHARA. 



Pistilla, or ovula. — Fecundation. — Product of develope- 

 ment similar. Antheridia confervoid. 



ESQUISETUM. 

 No Pistilla or ovula. — Product of developement similar. 

 PSILOTUM. 



No pistilla.— No male.— Product first similar, then dissi- 

 milar, lastly similar : sporules developed in secondary parent 

 cells. 



Note. What are the green globuline spherical headed, bodies of 

 Funaria ? 



