By Dr. Ashok Kumar Dr. Ashok Bendre
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This publication describes the interesting wealth of actions as they take place within the layout, building and commissioning of a chemical plant - a jigsaw puzzle of the paintings of chemical engineers, chemists, constructors, architects, electric engineers, method automation engineers, economists and felony employees.
During this quantity, the 9th of the sequence, remedies are provided for fifty two households containing 432 genera belonging to thirteen eudicot orders, a lot of that have lately been newly designed; 4 households stay unassigned to reserve. Emphasis is at the early-diverging eudicots and basal middle eudicots the phylogenetic relationships and diversification of that have lately been in concentration and are significantly mentioned.
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Thalli may be homothallic or heterothallic. 2. Sexual reproduction is oogamous. 3. Antheridia are generally borne at the tips in filamentous species and in the middle or peripheral region in the discoid species. 4. Anteridia appear as a group of small cells. 5. Oogonia are also borne terminally in filamentous species and towards periphery in the discoid species. 6. Oogonium is a flask-shaped structure with long tubular trichogyne. 7. The fertilization results in the formation of a zygote which remains embedded inside the wall of the oogonium.
10. Some of paraphyses are branched and hold one or more antheridia at the tips of the branches. 11. Each antheridium has a thick wall made of two layers. 12. On maturity about 64 biflagellate antherozoids are produced. ~~ A A wall of the •• conceptacle antheridium Fig. 7. Sargassum. A-B. A. s. through male receptacle, B. A male conceptacle as shown in fig. B enlarged. Fig. 8. Sargassum. A-B. A. s.
Branching is lateral but appears dichotomous because of evection (process of pushing the main axis on one side during the development of lateral branches). Hints for Collection This alga occurs in large quantities in pennanent pools or other bodies of stagnant water. It fonns an extensive net which covers the entire surface of water reservoir, and is as such called 'water net'. ICladophora I Classification Sub-division Class Order Family Genus Algae Chlorophyceae Cladophorales Cladophoraceae Cladophora Fig.
A text book of practical botany 1 by Dr. Ashok Kumar Dr. Ashok Bendre