The document outlines the Eichler system of classification for algae and bryophytes, detailing various divisions such as Cyanophyceae, Chlorophyceae, Phaeophyceae, and Rhodophyceae, along with notable genera and reproductive structures. It also describes the evolution from algae to bryophytes, specifically highlighting the division Bryophyta and its class Hepaticopsida. Key examples include Nostoc, Anabaena, and Riccia.

1. Eichler System of Classification
Dr. Farzin M. Parabia
Assistant Professor
Ashok & Rita Patel Institute of Intigrated Study and
Research in Biotechnology and Allied Sciences

2. 1. Cyanophyceae
Nostoc Anabaena
Akinate

3. Gloeotrichia
Heterocyst
Akinate
Scytonema
Oscillatoria

4. Volvox
2. Chlorophyceae

5. Hydrodictyon Chlamydomonas
Spirogyra

6. Spirogyra

7. Spirogyra - Sexual Reproduction

8. 3. Phaeophyceae
Fucus
Oogonium
Antheridium

13. 4. Rhodophyceae
Gelidium-Source of Agar
Batrachospermum
Cystocarp
Attached on
Rock
Stain- Aniline blue

14. Polysiphonia
Gametophyte Branch- Microsopic view

15. Polysiphonia – Sex ograns
Spermatangia

16. Cystocarp Formation
Cystocarp with many Carposporangia
Carposoprophyte (2n)

17. Tetrasporophyte (2n)

21. Evolution from Algae to Bryophyte from Chlorophyceae

22. Division: Bryophyta
Class: 1. Hepaticopsida
Riccia

23. Gametophytic Thallus
Marchantia

29. ancient Greek ἀρχή ("beginning") and γόνος
("offspring"),
moss Physcomitrella patens