Botany

Floral Diagram

The floral diagram is a diagrammatical description of the properties like arrangement, position, structure, aestivation, connotation and adnation of the floral components. It was first introduced in the 19th century by the scientist named August Wilhelm Eichler. A floral diagram illustrates the different floral components by the characteristic symbols. It has a circular outline. There …

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Life Cycle of Achyla

The life cycle of Achyla species involves asexual or sexual modes of reproduction. The genus Achyla includes approximately 47 species and belongs to the group of oomycetes or water mould. Few species of Achyla are phytopathogens like Achlya conspicua and Achlya klebsiana. Most of the Achyla species are aquatic, while few grow on damp soil. …

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Late Blight in Potato

Late blight in potato is a plant disease caused by the pathogenic fungus, Phytophthora infestans. It is a potentially devastating disease that primarily found in potatoes but can also be seen in the members of the Solanaceae family, including tomatoes, petunias and hairy nightshade etc. Phytophthora infestans is a plant pathogen, which can severely affect …

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Pericarp

A pericarp is a fraction of the fruit that constitutes the outer layer in the fruit anatomy, which encloses seed. It develops from the flower’s ovary and surrounds the seed that develops from an ovule, as a result of plant fertilization. Pericarp can be squishy or sapless. It is the edible tissue of fruit that …

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Difference Between Vascular and Nonvascular Plants

Difference between vascular and nonvascular plants is mainly due to the following factors: Vascular tissue: Its presence or absence distinguishes the vascular plants containing vascular tissue from the nonvascular plants those lack vascular tissue. The translocation of food, water and minerals is facilitated by the coordination of vascular vessels within root and stem. Plant taxonomy: …

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Life Cycle of Bryophytes

The life cycle of bryophytes has two alternations of generations, one is haploid gametophyte generation and the other is diploid saprophytic generation. In both the life cycle, the bryophytes possess different morphology and physiological functions. Between these two alternations of generation, the haploid gametophyte phase lasts longer or dominates the diploid saprophytic phase. Gametophytes (male …

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Difference Between Succulents and Cacti

Difference between succulents and cacti is mainly due to the following factors like: Presence of areole: Areole is a specialized structure from which spines, flowers, or fruits develops. Its presence is the characteristic feature of all the cactuses, while unusual in succulents. Phenotypic traits: All the cactuses are only having the stem, whereas succulents possess …

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