Internode do not elongate:
When we say that the internode does not elongate, it means that the space between two nodes on the floral axis remains relatively short or compact. This lack of elongation in the internode is a characteristic feature of certain plants, especially in the case of flowers.

Axis gets condensed for floral axis:
The floral axis refers to the main axis of a flower. It is the central structure from which all the floral organs arise. In some plants, the floral axis undergoes a process called condensation, which means that it becomes highly compact and condensed. This condensation of the floral axis is an important phenomenon in the development of a flower.

Explanation:
During the development of a flower, the floral axis goes through various stages. Initially, the floral axis is relatively elongated, and the internodes between the nodes are longer. However, as the flower matures and approaches its blooming stage, the internodes start to shorten, leading to the condensation of the floral axis.

This condensation of the floral axis serves several purposes. Firstly, it allows for the close arrangement of the floral organs, such as the sepals, petals, stamens, and carpels, around the central axis. This compact arrangement is essential for efficient pollination and fertilization of the flowers.

Secondly, the condensation of the floral axis helps in providing structural support to the flower. By reducing the length of the internodes, the flower becomes more stable and less prone to bending or breaking under external forces such as wind or rain.

Furthermore, the condensation of the floral axis also contributes to the overall aesthetic appeal of the flower. The compact arrangement of the floral organs gives the flower a visually pleasing and symmetrical appearance.

It is important to note that not all flowers exhibit condensation of the floral axis. Some flowers have elongated internodes, resulting in a more spaced-out arrangement of the floral organs. This variation in floral axis condensation is one of the factors that contribute to the diversity and beauty of the plant kingdom.

In conclusion, the lack of elongation in the internode and the condensation of the floral axis are important features in the development of flowers. These characteristics allow for a compact arrangement of floral organs, provide structural support, and enhance the aesthetic appeal of the flower.