I'd say pollen
it is stick so therefore it holds the pollen in place.
The stigma, a key part of the flower's reproductive structure, is adapted to effectively receive pollen for fertilization. Its surface is often sticky or feathery, which helps trap pollen grains and facilitates their adherence. Additionally, the stigma's position, usually elevated above the other floral parts, increases the likelihood of pollen landing on it from visiting pollinators. These adaptations ensure successful pollen transfer and enhance reproductive success in plants.
The stigma catches pollen and the pollen grain germinate on the stigma. The stigma is sticky to catch and trap pollen with various hairs or flaps.
Pollination is the union of the pollen and the stigma.
Pollen is collected in the stigma.
stigma
The transfer of pollen to the stigma of a flower is called pollination. The transfer of pollen is called pollenation.
The stigma on a flower is responsible for receiving pollen during fertilization. It is the receptive surface where pollen grains adhere and germinate to produce a pollen tube that delivers sperm to the ovules. This process is essential for sexual reproduction in plants.
pollen contain on stigma
Pollination
Pollen is male part of the flower and stigma is the uppermost part of the gynoecium (which is female part). Thus stigma does not produce pollen, rather pollen land on stigma after pollination to fertilize the egg inside the ovary of the flower.
The stigma catches pollen and the pollen grain germinate on the stigma. The stigma is sticky to catch and trap pollen with various hairs or flaps.