270 



GYMNOSPEKM/E. 



Class in. Gneteae. 



Tliis class, independent of extinct forms, comprises the most 

 highly developed of the Grymnosperms, partly from the circum- 

 stance that a perianth of 2-4 members encloses the terminally 



o 



o 



2 



OJ 



o 



01 



o 



o 



t-j 



IM 



ts 



