CHIEF SUBDIVISIONS OF THE PLANT KINGDOM 



SUBKINGDOM 



DIVISION 



SUBDIVISION 



CLASS 



Thallophyta 

 (Plants with- 

 out true stems, 

 roots or 



leaves) 



Algae 



(Sea weeds and 

 simpler fresh- 

 water weeds.) 



Fungi 



(Plants without 

 chlorophyll and 

 with saprophy- 

 tic nutrition) 



A. Cryp togamia 

 (Flowerless 

 plants) 



| II. Bryophyta 

 j (Mosses and 

 'Liverworts) 



III. Pteridophyta 

 (Vascular 

 cryptograms) 



B. Phanerogamia 

 (Flowering 

 plants) 



5 IV. Spermatophyta 

 I (Seed Plants) 



Gymnospermae 

 (Plants with naked 

 seeds) 



Angiospermae 

 Plants with cov- 

 ered seeds) 



1. Cyanophyceae, Blue-gr 



Algae 



2. Chlorophyceae, Gre 

 { Algae 



| 3. Phaeophyceae, B r o " 



Algae 

 [4. Rhodophyceae, Red Al 



5. Myxomycetes, S 1 i 



Moulds 



6. Schizomycetes, Bacteri; 



7. Phycomycetes, Moulds 



8. Ascomycetes, Sac fung 



9. Basidiomycetes, Sm 



Rusts, Muskrooms 



10. Fungi imperfe-ti (life 

 tories imperfectly knoi 



5 u. Hepaticae, Liverwort: 

 | 12. Musci, Mosses 



13. Eusporangiatae, Op' 

 glossum, Marattia, 

 etes 



14. Leptosporangiatae, Fc 



Marsilia 



15. Spenophyllineae, Sp! 



ophyllum 



16. Equisetineae, Horse 



17. Calamarineae, Calan 



18. Lycopodineae, C 1 



mosses 



19. Lepidodendrineae, L 



dodendren 



20. Cycadolfilicineae, Cyc 



filices 



21. Cycadineae, Cycads 



22. Bennettitineae, Benn 

 -{ tales 



I 23. Cordaitineae, Corda 

 I Ginko, Gnetum 



I 24. Pinoideae, Conifers, 

 [ Yews 



[25. Monocotyledoneae, A 



ocots 

 ( 26. Dicotyledoneae. Di 



