FUNDAMENTAL CONSIDERATIONS 



related by a common structure namely, two seed leaves or cotyledons 

 and so are grouped together under the class Dicotyledonea. The 

 Dicotyledonece differ from the Monocotyledonece in that the latter 

 group possess but one cotyledon; but both classes agree in having 

 covered ovules and seeds, and so are placed in the subdivision 

 Angiospermce. The Angiospermce differ from the Gymnospermce in 

 that the latter possess naked ovules and seeds; but both of these 

 subdivisions agree in producing real flowers and seeds. For these 

 reasons they are placed in the division Spermatophyta of the Vege- 

 table Kingdom. 



OUTLINE OF PLANT GROUPS 



I. Thallophyta 



II. Bryophyta 



III. Pteridophyta 



i. Protophyta 



2. Myxomycetes 



3. Algae 



4. Fungi 



5. Lichenes 



Hepaticae 



Musci 



Lycopodineae 



Equisetineae 

 Filicineae 



Bacteria 



Cyanophyceae 



Acrasiales 



Phytomyxales 



Myxogastrales 



[ Chlorophyceae 

 Phaeophyceae 

 Rhodophyceae 

 Phycomycetes 

 Ascomycetes 

 Basidiomycetes 

 Fungi Imperfecti 

 Crustaceous 

 Foliaceous 

 Fruticose 

 Marchantiales 

 Jungermanniales 

 Anthocerotales 

 Sphagnales 

 Andreaeales 

 Bryales 

 Lycopodiales 

 Selaginales 



I Isoetales 



{ Equisetales 



f Ophioglossales 



1 Filicales 



