Foliage Leaves of Pinus are borne on Branches of Unlimited Growth

Pinus is a genus of coniferous trees that belong to the family Pinaceae. They are commonly known as pine trees and are widely distributed across the world. The leaves of Pinus are needle-like and are borne in clusters called fascicles. These fascicles are attached to branches that grow continuously throughout the life of the tree. Therefore, the foliage leaves of Pinus are borne on branches of unlimited growth.

Explanation:

• Pinus trees have two types of branches: whorled branches and solitary branches.

• Whorled branches are the primary branches that grow from the trunk of the tree. They are arranged in a spiral pattern around the trunk and are responsible for the overall shape of the tree.

• Solitary branches are the secondary branches that grow from the whorled branches. They are responsible for producing the foliage leaves of the tree.

• The foliage leaves of Pinus are needle-like and are arranged in clusters called fascicles. The number of needles in each fascicle varies depending on the species of Pinus.

• The fascicles are attached to the solitary branches, which grow continuously throughout the life of the tree. This allows the tree to produce new foliage every year, even as the whorled branches stop growing.

• The branches of Pinus trees can grow up to several meters in length, depending on the species. This allows the tree to produce a large number of needles and to capture more sunlight for photosynthesis.

Conclusion:

In conclusion, the foliage leaves of Pinus are borne on branches of unlimited growth. This allows the tree to produce new foliage every year and to capture more sunlight for photosynthesis.

The foliage leaves are green,needle like and are borne at the tips of the branches of limited growth or dwarf shoots only. A dwarf shoot with a group of needle like foliage leaves is known as foliar spur. So the correct answer is option A that is foliage leaves of pinus are borne on the branches of limited growth.