OUJ'LINE OF CLASSIFICAI^ION. 41/ 



Subkingdom II. BRYOPHYTA. Bryophytes. Mossworts. 



Class I. Hepaticae. Liverworts. 

 Order i. Ricciales. 

 Riccia. 

 Order 2. Mnrchantiales. Liverworts. 



Marchantia. Lunularia. 

 Order 3. Anthocerotales. Horned liverworts. 

 Order 4. Jungermannialis. Leafy liverworts. Scale mosses. 

 Porella. 

 Class n. Musci. Mosses. 



Order i. Sphagnales. Peat mosses. 



Sphagnum. 

 Order 2. Andreccales. 

 Order 3. Archidiales. 

 Order 4. Bryales. True mosses. 



Bryum. Mnium. Hypnum. 



Subkingdom IH. PTERIDOPHYTA. Pteridophytes. 

 Fernworts. 



Class L Filicineae. 



Order I. Ulicales. True ferns. 



Adiantum. Pteris. Aspidium. Asplenium. 

 Order 2. Hydropteridales. Water ferns. 

 Class IL Equisetineae. Horsetails. Scouring rushes. 



Equisetum. 

 Class IIL Lycopodinese. 



Order I. Lycopodiales. Ground pines. 



Lycopodium. 



Order 2. SelaginellaUs. Club mosses. 



Selaginella. 



Subkingdom IV. SPERMATOPHYTA. Seed plants. 



Class I. Gymuospermae. Gymnosperms. 

 Order i. Cycadales. Cycads. 

 Cycas. 



