54 OUR NATIVE FERNS AND THEIR ALLIES. 



GYMNO8PERM/C 



SELAGINELLACE/e 



I80ETACE/C 



POUYPODIACE/E 



8PHAGNACE/E 



PHYCOMYCETES 



RROTOCOCCOIDE* 



PROVISIONAL PEDIGREE OF THP READING GROUPS OF PLANTS. 



