Scabiosa caucasia Development (page 6)
Carpel growth and pollen attachment
After the anthers are shed the styles grow in length. The stigmas (end of the style) are indented in shape. After a brief delay, the stigmas change in shape and lose their indentations. They then support pollen adhesion. The pollen then begins to swell as a result of dehydration. This is part of the process of pollen activation. A tube will then grow down style the from the activated pollen to produce fertilisation in the ovary.