Flower bud (SEM)
Three out of four lobes of corolla and two stamens were removed. A pistil is at the center.

Flower: first day of flowering
Masses of pollen come from anthers. Although difficult to see, nectar is secreted. on the corolla..

Flower: first day (SEM)
Four stamens were removed. Two stigma tips are in contact with each other. Nectar is present.

Flower: second day of flowering
The stigma tips are separated. Copious nectar is present, but pollen is not, which was removed mostly by insects visited on the first day.

Stigma: second day (SEM)
A mucilage substance is present on the stigma, and pollen grains appear in the substance.

Nectar glands (SEM)
Apical part of each gland seems to be divided into four (four cells ?).