Pinus: Salient Features, Morphology and Reproduction

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Pinus are coniferous, evergreen resinous trees which are popularly known as pine. They belong to the family Pinaceae under order Coniferales of class Coiniferosida. Different species of the genus Pinus are distributed throughout the temperate and sub-alpine regions of Northern Hemisphere where they form dense forests of evergreen trees. They can grow up to 80 … Read more

Spirogyra: Characteristics, Structure and Reproduction

SpirogyraCharacteristics, Structure and Reproduction

Spirogyras are common free-floating freshwater algae that inhabit ponds, pools, tanks, lakes, ditches, etc.  The word ‘Spirogyra’ is derived from the two Greek words, ‘Speria’, meaning coil, and ‘gyras’ meaning twisted. Spirogyra has many common names, including blanket weed, water silk, mermaid`s tresses, etc. It grows up to several centimeters in length and 10-100 μm … Read more

Reproduction in algae

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Algae are a diverse group of eukaryotic cellular or multi-cellular organisms. They inhabit both in aquatic and terrestrial environments. Some occur in moist stones, wood, soils, on ice, or snow. They have photosynthetic pigments that perform photosynthesis, produce oxygen, and remove at least half of the total carbon dioxide from the earth`s atmosphere. Algae perform … Read more

Structure of Algae

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Algae are photosynthetic microorganisms that perform photosynthesis and produce oxygen (O2) and consume carbon dioxide (CO2) from the atmosphere. During photosynthesis, algae produce at least half of the oxygen in Earth’s atmosphere. Most of the algae inhabit the aquatic environment, either freshwater or marine habitats. They can also occupy on rocks, soils, vegetation, or moist … Read more

Pteridophyta: General Characteristic Features and Importance

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Pteridophyta is a division of plant life that includes ferns, horsetails, and club mosses. These plants are characterized by having vascular tissue and reproducing via spores. These plants are also characterized by having roots, stems, and leaves, but no flowers or seeds. Today, there are an estimated 12,000 species of pteridophytes found on every continent … Read more

Bryophyta: Characteristics, Classification and Economic Importance

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The term Bryophyta is derived from two Greek words, Bryon and Phyton. In this case, ‘bryon’ meaning moss and ‘phyton’ meaning plant. It is the second division of the plant kingdom which lies in between Thallophyta and Pteridophyta. The plants included under the division are non-flowering and non-vascular. They can’t produce flowers and seeds as … Read more