Plant Kingdom – Notes
Algae are simple, thalloid, chlorophyll-bearing organisms found in fresh and marine water, moist stones, soils and wood.
Algae can be unicellular, colonial or filamentous.
Based on the type of pigment and the type of stored food we can classify algae into Chlorophyceae, Phaeophyceae and Rhodophyceae.
Chlamydomonas, Volvox, Spirogyra, are some members of the class Chlorophyceae.
They are commonly called green algae.
Class Phaeophyceae includes Ectocarpus, Dictyota, and Laminaria.
These species, commonly termed as brown algae, are mostly found in brackish or salt water.
Rhodophyceae is another class of algae whose members include Polysiphonia, Gracilaria and Gelidium, often called red algae.
Bryophytes are plants that usually grow in damp, humid and shaded localities.