CLASSIFICATION OF PLANTS 155 



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AN OUTLINE OF THE CLASSIFICATION OF PLANTS 



DIVISION I. Thallophyta, the thallus plants, or thallophytes. 



SERIES OF THE ALG^E. 



CLASS I. Cyanophycece, the blue-green algse. 

 II. Chlorophycece, the green algse. 



Order 1. Protococcales, the one-celled green algse. 



2. Confervales, the confervas and sea lettuce. 



3. Conjugates, the pond scums 



4. Diatomales, the diatoms. 



5. Siphonales, the siphon algse. 

 G. Charales, the stoneworts. 



III. PkaeophycecB, the brown algse. 



IV. Rhodophyc&R, the red algse. 



SERIES OF THE FUNGI. 



CLASS V. Schizomycetes, the bacteria. 



VI. Saccharomycetes, the yeasts. 



VII. Phycomycetes, the alga-like fungi. 



VIII. Ascomycetes, the sac fungi. 



IX. Rasidiomycetes, the basidia fungi. 



DIVISION II. Bryophyta, the liverworts and mosses, or bryophytes. 

 CLASS I. Hepaticce, the liverworts. 



Order 1. Ricciales, the Eiccia forms. 



2. Marcluuitiales, the Marchantia forms. 



3. Jungermanniales, the Jungeruiannia forms, or 



leafy liverworts. 



4. Anthocerotales, the Anthoceros forms. 



II. Musci, the mosses. 



Order 1. Sphagnales, the peat mosses. 

 2. Bryales, the common mosses. 



DIVISION III. Pteridophyta, the ferns and their allies, or pteridophytes. 

 CLASS I. Filicineoz, the true ferns. 



II. Equisetinece, the horsetails. 

 III. Lycopodinece, the club mosses. 



DIVISION IV. Spermatophyta, the seed plants, or spermatophytes. 

 SUBDIVISION I. Gymnospermce, the gymnosperms. 

 II. Angiosperrnce, the angiosperms. 1 



CLASS I. Monocotyledonece, the monocotyledons. 

 II. Dicotyledonece, the dicotyledons. 



1 The reader should note that in this classification the angiosperms con- 

 tain only two out of sixteen classes of somewhat equivalent value. 



