Cryptogam

Cryptogam

1. Welcome to our presentation… 1/29/2019 1

2. What is Cryptogams ? A cryptogam(scientific name c ryptogamae ) is a plant that reproduces by spores without flowers and seeds.Cryptogames means hidden reproduction ,referring to the fact that no seeds is produce thus cryptogams.The best known groups of cryptogams are algae , riccia ,ferns etc. 1/29/2019 2

3. Characteristics of Cryptogams . Flowerless and seedless plants. Lower and more primitive plants. Hidden reproductive organs. Reproduction by spores. Three mains groups are 1.Thallophyte 2.Bryophyte 3.Pteridophyte 1/29/2019 3

4. Classification of Cryptogams.. 1/29/2019 4 Cryptogams Thallophyta Bryophyta Pteridophyta Lycopodium Riccia Pteris

5. Charactries of Thallophyta . They are unicellular They produce vegetatively or by means of asexual spores. A phylum of plants of very diverse habit and structure. 1/29/2019 5 Lycopodium clavatum

6. Characteristics of Bryophyta This division in the simple stand most primitive non-vascular land plant having an embryo. This is the plant division that contains mosses. Plants in this Division have crude stems and leaves but no roots. 1/29/2019 6 Riccia   fluitans

7. Characteristics of pteridophyta The division include first vascular land plants. All the plants have vascular tissue. The plants are sporophytes and made up of true roots and streams. 1/29/2019 7 Pteris wallichiana (Brake)

8. Life-cycle of Moss

9. 1/29/2019 9 Life-cycle :

10. 1/29/2019 10 Reproduction of Pteris

11. Speacial features of Fungi

12. Economic importance of Cryptogamas 01. We use fungi for nutritious food 02 Some fungi are toxic 03.Tallophytes (algae) due to high content of nitrogen 04.We also take pteris as food 05. Some algae or other moss are use to medicine. 06.Mosses are good for animal food. 07.Mosses helps the soil and prevent soil erosion by running water 1/29/2019 12

13. Thank you……. Have you any question ? 1/29/2019 13