Question

Особенности строения соцветий. початок - ?

Answer 1

Початок

 

ПОЧАТОК м.
1. Колосовидное соцветие растений с утолщенной осью, на которой расположены цветки или плоды.
2. Пряжа, намотанная на веретено или снятая с веретена.

 

Answer 2

Початок строением похож на колос, но его главная ось толстая, мясистая, с тесно расположенными на ней сидячими цветками. Часто под початком вырастает один или несколько крупных листьев, покрывающих собой соцветие. Примеры: кукуруза, аир болотный, белокрыльник.

Answer 3

Structure of Inflorescences

The structure of inflorescences, also known as the arrangement of flowers on an axis, varies across different plant species. Here are some key features of the structure of inflorescences:

1. Types of Inflorescences: - Inflorescences can be classified into various types based on their structure and arrangement of flowers. Some common types include racemose, cymose, panicle, spike, and umbel.

2. Racemose Inflorescences: - In racemose inflorescences, the main axis continues to grow and produces lateral flowers. The oldest flowers are found at the base, and the youngest are at the apex. This type of inflorescence can be further classified into simple, compound, and mixed racemes.

3. Cymose Inflorescences: - Cymose inflorescences have a determinate growth pattern, where the terminal flower is the oldest and the lateral flowers are progressively younger. This type of inflorescence includes forms such as monochasial cyme, dichasial cyme, and pleiochasial cyme.

4. Panicle and Spike: - A panicle is a branched raceme, while a spike consists of unbranched, sessile flowers along an elongated, unbranched axis.

5. Umbel: - An umbel is a type of inflorescence in which several short flower stalks of nearly equal length arise from a common point, giving the inflorescence a flat-topped appearance.

6. Other Features: - Inflorescences can also exhibit variations in the arrangement of flowers, the presence of bracts, and the overall shape and size of the inflorescence.

In summary, the structure of inflorescences can vary widely, with different types exhibiting distinct patterns of flower arrangement and axis growth.

If you have further questions or need more details on a specific type of inflorescence, feel free to ask!