Algae Archive

Ectocarpus

Occurrence Ectocarpus is a brown alga. It is abundantly found throughout the world in cold waters. A few species occur in fresh waters. The plant grows attached to rocks and stones along coasts. Some species are epiphytes on other algae …

Batrachospermum

Occurrence Batrachospermum is fresh water alga. It is found in clear, cool and running streams. Deep water plants are dark violet or reddish in colour. But the shallow water species are olive green. The intensity of light changes the colour …

Polysiphonia

Occurrence Polysiphonia is a marine alga. It is present along the coast of oceans. It is attached to the rocks or other substratum. Some members are epiphytes.   Vegetative structure Plant body is composed of branched filamentous and basal attachment …

Pinnularia

Occurrence Pinnularia is a fresh water alga. It is found in pond. It is also present on the moist soil It is unicellular. Its cell is elongated and elliptical. Cell wall is chiefly composed of pectic substances. Silica is impregnated in …

Vaucheria

Occurrence Majority of them are fresh water. They are also found on moist soil. They form dark green mats. General structure Vegetative structure The thallus is filamentous. The filament is cylindrical, branched, tubular, erect coenocytic. The filament is attached to …

Volvox

Occurrence Volvox is freshwater algae. It makes water green. It appears in the spring. Vegetative structure Volvox forms colony. The colony of volvox is called coenobium (if the colony having fixed number of cells). It is spherical in shape. Each …

Chara

Occurrence: Chara is a fresh water, green alga found submerged in shallow water ponds, tanks, lakes and slow running water. C. baltica is found growing is brackish water and C. fragilis is found in hot springs. Chara is found mostly …

Algae: Life cycles

Haplontic life cycle: Most common type of life cycle in algae Life cycle is diphasic (two phases) The prominent phase is haploid gametophytic phase The diploid (sporophytic) phase in the life cycle is represented by the zygote Zygote is formed by …

Cyanophyceae

The Cyanophyceae or blue-green algae are, today, usually referred to as the cyanobacteria (bluegreen bacteria). The term cyanobacteria acknowledges that these prokaryotic algae are more closely related to the prokaryotic bacteria than to eukaryotic algae. Cyanobacteria have chlorophyll a (some …

Algae Plastids

The basic type of plastid in the algae is a chloroplast, a plastid capable of photosynthesis. Chromoplast is synonymous with chloroplast; in the older literature a chloro plast that has a color other than green is often called a chromoplast. A …