What is apophysis and columella respectively
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Answer:
- Spores are not produced in the apophysis but in the theca (or urn), the area between the apophysis and the mouth. ... Many mosses have a columella, a column of sterile tissue that typically extends through the theca and which is surrounded by the spore-producing cells
Answered by
9
Answer:
Spores are not produced in the apophysis but in the theca (or urn), the area between the apophysis and the mouth. ... Many mosses have a columella, a column of sterile tissue that typically extends through the theca and which is surrounded by the spore-producing cells.
Explanation:
The columella is a sterile dome shaped structure found at the tip of a sporangiophore, or within a sporangium. The columella functions for nutrient exchange between the active protoplasm below and the developing spores inside the upper portion of the sporangial head.
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