7
Question
Sometimes filaments bear appendages e.g. staminal corona which is found in
Sometimes filaments bear appendages e.g. staminal corona which is found in
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Solution
The correct option is B Calotropis
Sometimes filaments bear appendages e.g. staminal corona which is found in Calotropis. Calotropis is a genus of flowering plants in the Dogbane
family, Apocynaceae. They are commonly known as milkweeds because of the latex they produce. Calotropis species are considered common weeds in some parts of the world. The stigmas and androeciums are fused to form a gynostegium. The pollens are enclosed in pollinia (a coherent mass of pollen grains). The pollinia are attached to an adhesive glandular disc at the stigmatic angle. When a bee lands on one of these, the disc adheres to its legs, and the pollinium is detached from the flower when the bee flies away. When the bee visits another flower, the flower is pollinated by the adhering pollinium on the bee.
Therefore, the correct answer is option C.
Sometimes filaments bear appendages e.g. staminal corona which is found in Calotropis. Calotropis is a genus of flowering plants in the Dogbane
family, Apocynaceae. They are commonly known as milkweeds because of the latex they produce. Calotropis species are considered common weeds in some parts of the world. The stigmas and androeciums are fused to form a gynostegium. The pollens are enclosed in pollinia (a coherent mass of pollen grains). The pollinia are attached to an adhesive glandular disc at the stigmatic angle. When a bee lands on one of these, the disc adheres to its legs, and the pollinium is detached from the flower when the bee flies away. When the bee visits another flower, the flower is pollinated by the adhering pollinium on the bee.
Therefore, the correct answer is option C.
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