LAMELLATE PLACENTATION Meaning and
Definition
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Lamellate placentation refers to a specific type of placentation found in certain plants, particularly in the angiosperms or flowering plants. The term "placentation" refers to the arrangement of ovules within the ovary of a flower, and it plays a crucial role in the development and maturation of seeds.
In lamellate placentation, the ovules are arranged on the inner wall of the ovary, forming several parallel, plate-like structures called lamellae. The lamellae are attached to the central axis of the ovary and radiate outwards, resembling the shape of spokes on a wheel.
Each lamella contains multiple ovules, and they are positioned such that their stalk or funiculus is attached to the lamella while their micropyle or opening faces the central axis. This arrangement ensures that the developing seeds will be evenly distributed throughout the ovary, allowing for efficient space utilization and preventing overcrowding.
Lamellate placentation is commonly observed in plant families such as Malvaceae, Bombacaceae, and Sterculiaceae. This type of placentation often leads to the formation of fruits that have a distinctive cylindrical or columnar shape, with seeds arranged in a linear fashion along the length of the fruit.
Overall, lamellate placentation is an important mechanism in plants for successful seed production and dispersal. It facilitates the proper distribution of ovules within the ovary, ensuring the efficient development and maturation of seeds in a way that maximizes the plant's reproductive success.
Common Misspellings for LAMELLATE PLACENTATION
- kamellate placentation
- pamellate placentation
- oamellate placentation
- lzmellate placentation
- lsmellate placentation
- lwmellate placentation
- lqmellate placentation
- lanellate placentation
- lakellate placentation
- lajellate placentation
- lamwllate placentation
- lamsllate placentation
- lamdllate placentation
- lamrllate placentation
- lam4llate placentation
- lam3llate placentation
- lameklate placentation
- lameplate placentation
- lameolate placentation
Etymology of LAMELLATE PLACENTATION
The word "lamellate placentation" is a term used in the field of botany to describe a specific type of arrangement of ovules in a plant's ovary. Let's break down its etymology:
1. Lamellate: The word "lamellate" comes from the Latin word "lamella", which means a thin plate or scale. It is derived from the Latin root "lamina", meaning a thin layer or sheet. In this context, "lamellate" refers to the presence of thin plates or layers in the placentation structure.
2. Placentation: The word "placentation" relates to the formation and arrangement of the placenta in plants. It is derived from the Latin word "placenta", which means a cake or flat loaf. The Latin term was borrowed from Greek "plakóenta", with the same meaning.
