The Chief characteristic of ferm leaf is that they-a)Have ramentab)Are...
Ferns have 3 major parts – the rhizome, the fronds and the reproductive structures called sporangia. The characteristics of each of these 3 parts of the fern plant are used for classification and identification. The rhizome is the stem of the fern plant.
View all questions of this test
The Chief characteristic of ferm leaf is that they-a)Have ramentab)Are...
The structure of a fern. Ferns have 3 major parts – the rhizome, the fronds and the reproductive structures called sporangia. The characteristics of each of these 3 parts of the fern plant are used for classification and identification. The rhizome is the stem of the fern plant.
The Chief characteristic of ferm leaf is that they-a)Have ramentab)Are...
Understanding Fern Leaves
Fern leaves, commonly called fronds, exhibit unique characteristics that distinguish them from leaves of other plant groups. The correct answer to the identified question is option 'C': they have ramenta and circinate vernation when young.
Key Characteristics of Fern Leaves
- Ramenta:
Ferns possess ramenta, which are small, scale-like structures that can be found at the base of the leaf stalk. These structures often provide support and may help in protecting the developing leaf.
- Circinate Vernation:
Young fern leaves typically display circinate vernation, a characteristic unfurling pattern. In this pattern, the leaf develops in a coiled form, gradually unfolding as it matures. This adaptation protects the delicate leaf tissues from damage during early growth.
Why Other Options Are Incorrect
- Microphyllous Structure:
While some plants have microphyllous leaves, ferns are usually categorized by their more complex leaves, which are not microphyllous. Instead, they have larger leaves with a more intricate vein structure.
- Simple Leaves:
Fern leaves are typically compound, meaning they are divided into smaller leaflets (pinnate or palmate). This complexity differs from the simple leaf structure seen in many other plant types.
Conclusion
The distinctive features of fern leaves, particularly the presence of ramenta and their unique circinate vernation, underscore their evolutionary adaptations. Understanding these traits is crucial for identifying and studying ferns within botanical contexts, especially for examinations like NEET.