Скачать или смотреть Different Shape Of Stigma (Lecture 33) In Hindi/Urdu.

Different Shape Of Stigma (Lecture 33) In Hindi/Urdu.

The stigma, which is the receptive part of the female reproductive structure (gynoecium) in a flower, can exhibit a variety of shapes. The different shapes of stigmas include:

1. Capitate Stigma:
The stigma is shaped like a small, rounded head or knob.
It is typically found in flowers with a single, undivided style.
Example: Primrose, some Asteraceae (daisy) family members

2. Peltate Stigma:
The stigma is shaped like a small, flat, shield-like structure.
It is often found in flowers with a single, undivided style.
Example: Water lilies, some Nymphaceae family members

3. Plumose Stigma:
The stigma is feather-like or plume-shaped, with numerous fine, hair-like projections.
It is commonly found in wind-pollinated flowers.
Example: Grasses, some Poaceae family members

4. Bifid Stigma:
The stigma is divided into two distinct lobes or branches.
It is often found in flowers with a single, split style.
Example: Mint, sage

5. Trifid Stigma:
The stigma is divided into three distinct lobes or branches.
It is commonly found in flowers with a single, three-branched style.
Example: Lily, tulip

6. Penicillate Stigma:
The stigma is brush-like, with numerous fine, hair-like projections.
It is often found in flowers with a single, undivided style.
Example: Some Asteraceae (daisy) family members

The shape of the stigma can be an important diagnostic feature used in plant identification and classification, as it reflects the structural and functional adaptations of the flower's reproductive system.

The stigma shape can also influence the mode of pollination, pollen capture, and seed development within the flower.

Careful observation and description of the stigma morphology can provide valuable insights into the floral diversity and evolutionary relationships among different plant taxa.

different shapes of stigma
rounded stigma
linear stigma
branched stigma
feathery stigma
flower morphology
morphology of flower
plants morphology
morphology of plants
morphology of flowering plants

#stigmainflower
#stigmaofflower
#flowermorphology #morphologyoffloweringplants
#biologywithwk