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what is the role of oxwald tippo
in artificial system of classification

ayisha , 5 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 5 Years ago

Oswald Tippo (born in 1911), formerly of the University of Illinois and now of the New York University of U.S.A. published an outline of a projected classification in 1942. He claims no originality for his system. Tippo’s system is a compilation of systems proposed by G. Smith (1938) for non-vascular plants and by A.J. Eames (1936) for vascular plants.
 

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.

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