1. The feature of ovular uterine bleeding disorder is regular menstrual cycle with short cycle, abnormal heavy menstruation, longer period but self ceasing .

2. A central ring creates an ovular oculus which is the center - point of the space.

3. Based on the conventional paraffin sectioning method, the dynamics of polysaccharides during the ovular development in Tugarinovia mongolica was observed at the optical level .

4. About weeks after pollination, the tip cells of nucellus broke and secreted liquid into ovular canal, which promoted pollen movement to the nucellus and played important role for pollen germination.

5. Based on the conventional paraffin sectioning method, observation was done at the optical level on the dynamics of starch during the ovular development in barley.

6. The clinical symptom is irregular menstrual cycle, heavy menstruation or vaginal bleeding. It is divided into ovular type and angular type.

7. About 4 weeks after pollination, the tip cells of nucellus broke and secreted liquid into ovular canal, which promoted pollen movement to the nucellus and played important role for pollen germination.