Definition of capitalize. capitalized. ; capitalizing. transitive verb. 1 : to write or print with an initial capital or in capitals Capitalize the names of cities and states.
Dehiscence is the splitting at maturity along a built-in line of weakness in a plant structure in order to release its contents, and is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part. Structures that open in this way are said to be dehiscent.
The sporangia of the remainder of the true ferns are all remarkably similar. They are thin-walled and dehiscence is caused by a region of cells with thick inner walls and thin outer walls, usually in a ring, called the annulus. The dehiscence occurs in a specialized region called the stomium.n ferns, the young fronds develop by uncurling along the main axis from the base towards the tip; this type of vernation (leaf development) is known as circinnate vernation and is a distinctive characteristic of ferns; the uncurling frond is known as a fiddlehead or crosier. The fern allies have straight vernation.