Asphodelus tenuifolius (Piazi) Family Liliaceae

The family comprises of about 240 genera and 4000 species found in temperate and sub-tropical regions of the world such as Asphodelus tenuifolius. Most species are annual or perennial herbs. The important genera are: Lilium, Aloe, Allium (onion) and Asparagus. The representative species is Asphodelus tenuifolius (piazi). Asphodelus tenuifolius (Piazi) Habit It is an annual weed. Root The roots are ...

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Ricinus communis (Castor-Oil Plant — Arind) Family Euphobiaceae

The family consists of about 283 genera and 7300 species such as Ricinus communis. members of the family are distributed worldwide except in arctic regions. In Pakistan, the family is represented by several genera like Euphorbia, Croton (Jamalghota), Jatropha, Emblica (amla), etc. Ricinus communis (Castor-Oil Plant — Arind) Ricinus communis is an annual or perennial shrub. The seeds are source ...

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Chenopodiaceae Chenopodium album (Pigweed — Bathu)

The family comprises of herbaceous annuals growing as weeds in the cultivated fields and as well as in the forests as under-growths. E.g., Chenopodium album also known as Pigweed or Bathu belongs to family Chenopodiaceae. Chenopodium album (Pigweed — Bathu) Habit Chenopodium album is a common annual herb found as a weed in wheat fields. The tender twigs are used as vegetable ...

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Structure and Life Cycle of Marine Water Brown Algae Ectocarpus

Marine water brown algae”Ectocarpus” is abundantly found throughout the world in cold waters. A few species have been reported to occur in freshwaters. The plant grows attached to rocks and stones along coasts both in the littoral and sub-littoral zones. Some species are epiphytes on other algae especially the members of Fucales and Laminariales. Ectocarpus stands for (ecto=external + carpus=fruit). Structure ...

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Helianthus annus (Sunflower) Family Astraceae Compositae

Astraceae is the largest family of angiosperms comprising of 950 Genera and approximately 20,000 species. Most common genera are Helianthus annus (sunflower), Sonchus asper (dodak), Carthamus tinctorius (kusum), Artemesia absinthium (afsantin), Lactuca sativa (salad), Ageratum conyzoides, Tagetes (gainda), Zinnia, Xanthium, etc. The members of the family are worldwide in distribution. Distingushing Features Helianthus annus (sunflower) Herb, with simple alternate leaves, flower is capitula, ...

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Structure and Reproduction in Chara-Fresh Water Green Algae

Chara grows submerged in fresh water and upon muddy or sandy bottoms of pools and ponds, or in limestone streams. Certain species have the capacity of precipitating calcium carbonate from the water and covering themselves with calcareous layers. Clear hard water is suitable for their growth. Mature plant is enriched with CaCO3. Therefore, they are called as stone worts. Structure ...

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Family Rosaceae Rosa indica (Rose-Gulab)

The Rosaceae family consists of about 115 genera and 3200 species. The members of the family are worldwide in distribution. Such as Rose Gulab (Rosa indica). They are found in temperate and cold regions. The family is important for its valuable fruit plants and beautiful and fragrant flowers. The common representative genera are: Rosa indica (gulab), Prunus spp (badam, khubani, ...

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Structure and Reproduction in Pinnularia

Pinnularia is very common in fresh water ponds, ditches, on the surface of mud in the drying ponds and on the moist soils. The Taxonomic Positions, Structure, Reproduction of Pinnularia are as follow. Taxanomic Position Division: Bacillariophyta Class: Bacillariophyceae Order: pennales Family: Naviculoideae Genus: Pinnularia Structure Cell The plant consists of single cell, which is elongated or elliptical in outline. The cell ...

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Structure and Life Cycle of Spirogyra

Spirogyra is one of the commonest and large genus with about 300 species growing as free-floating masses in stagnant or slowly moving waters (streams). Some species, e. g., Spirogyra adnata are attached to the substratum through a basal rhizoidal cell. The masses of plants are slimy to touch because the filaments are surrounded by pectic sheaths which when come in ...

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Structure and Reproduction in Volvox (Green Algae)

The Volvox is a green, flagellated, colonial algae found in both temporary and permanent water ponds, pools and ditches. It usually grows in spring and summer but abundant growth takes place during rainy season. The colonies are found in the form of small balls of the size of a pin-head which are visible to the naked eye. It passes winter in ...

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