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Questions and Answers
What is the terminal structure of a stamen called?
What is the terminal structure of a stamen called?
- Filament
- Thalamus
- Anther (correct)
- Petal
Where is the proximal end of the filament typically attached?
Where is the proximal end of the filament typically attached?
- Petals
- Anther
- Thalamus (correct)
- Sepals
What term describes the number of theca in each lobe of a typical angiosperm anther?
What term describes the number of theca in each lobe of a typical angiosperm anther?
- Monothecous
- Dithecous (correct)
- Trithecous
- Tetrathecous
What variation can be observed in stamens when collected from ten different species?
What variation can be observed in stamens when collected from ten different species?
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What feature might be observed in the transverse section of an anther?
What feature might be observed in the transverse section of an anther?
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Study Notes
- A stamen consists of a filament and an anther, with the filament attached to the thalamus or petal of the flower.
- The number and length of stamens vary among different flower species, leading to a wide range of sizes in nature.
- An anther in angiosperms is typically bilobed with two theca in each lobe, making them dithecous.
- There is often a longitudinal groove that separates the theca within each lobe of the anther.
- Detailed observation and diagramming of stamens from different species can reveal the diversity in size, shape, and attachment of anthers in flowers.
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Description
Explore the components of a stamen, including the filament and anther, and how they vary in size across different plant species. Learn how to identify and appreciate the variability in stamen structure in nature.
