what is the role of oxwald tippo

in artificial system of classification

Synopsis of Tippo’s System (1942):

Kingdom Plantae:

Sub-kingdom, I. Thallophyta. Plant forming no embryos. 

Phylum 1. Cyanophyta. 

Phylum 2. Euglenophyta. 

Phylum 3. Chlorophyta. 

Phylum 4. Chrysophyta. 

Phylum 5. Phaeophyta. 

Phylum 6. Rhodophyta. 

Phylum 7. Schizomycophyta. 

Phylum 8. Myxomycophyta. 

Phylum 9. Eumycophyta. 

Sub-kingdom II. Embryophyta. Plants forming embryos. 

Phylum 1. Bryophyta or Atracheata. Plants without vascular tissues. 

Phylum 2. Tracheophyta or Tracheata. Plants with vascular tissues. 

Sub-phylum 1. Psilopsida. Root-less and leafless vascular plants. 

Sub-phylum 2. Lycopsida. Scale like leaves and simple vascular tissues in plants. 

Sub-phylum 3. Sphenopsida. Jointed, ribbed stem; scale like leaves and simple vascular tissues in plants. 

Sub-phylum 4. Pteropsida. Large leaves and complex vascular tissues in plants. 

Class 1. Filicineae. 

Class 2. Gymnospermae. 

Class 3. Angiospermae. 

Sub-class 1. Monocotyledonae. 

Sub-class 2. Dicotyledonae.