CLASSIFICATION. 209 



V 



Mosses and Liverworts ; and Thallophy tes, embracing 

 Lichens, Seaweeds (Algae), and Mushrooms (Fungi). 



360. So far, then, our classification is as follows : 



/"Sub-Class 1-Angiosperms. 



Class L-Dicotyle. I ****" Di ion - 

 dons -< Gamopetalous do. 



Apetalous do. 

 V Sub-class 2-Gymnosperms 

 (Spadiceous Division. 



Series I. 



Phanero- 

 gams. 



Class II. Mono- 

 cotyledons . 



do. 



( Class IH.-Pteridophytes. 



Class IV. Bryophytes. 

 Cryptogams. ._ Thallophyteg> 



361. The above is very nearly the arrangement adopted 

 by Gray, but many botanists prefer another arrangement 

 as follows : 



f ( ( Class I Dicotyledons. 



Group I. ^- Angiosperms. 4 



<; V, Class II. Monocotyledons. 



Phanerogams. I 



V.B. Gymnosperms. Class IH.Gymnosperms. 



( Class IV. Ferns. 



Group II. 



-< Class V. Horsetails. 



Pteridophytes. 



I Class VI.-CZu6-lfoOT. 



Group III. /Class 



Bryophytes. \Class 



Group IV. /Class IK Fungi. 



Thallophytes. \ Class ^_ 



In this arrangement the last three Groups constitute 

 the Cryptogams, and the Gymnosperms are raised to the 

 rank of a sub-division of the Phanerogams, instead of 



