1. Observation and investigation had been done on strobile, staminate flowers and flower season of 118 clones in clonal seed orchard of Pinus tabulaeformis Carr.

2. The staminate cone of pine is male rather than female.

3. Female trees only produce staminate flowers and intermediate flowers, the latter are specially provided to pollinating fig wasps for their oviposition and proliferation.

3. try its best to collect and make good sentences.

4. As developing, staminate flower kept closure and folded and would get wilt gradually. Very few staminate flower may blossom but no effective pollen went out.

5. The genesis and development of staminate flowers and the bisexual flowers of"Lanzhou melon"have been observed.

6. The primitiveness in stamen morphology of the Schisandra staminate flowers is also discussed, which might agree with the origin antiquity of the genus.

7. The staminate flower is subtended by two leaf-like bracts. 150–200 stamens spirally arranged along the spike axis and the phyllome are located at the base of the spike axis.

8. Objective To investigate quality differences between Pollen Typhae and Pollen with staminate flower.

9. Fibrous thickenings are formed in the cells of the endothecium. In staminate flowers, the septum separating anther locules was cleaved and the stomium was degenerated to release the pollen grains.

10. Conclusions Quality of Pollen Typhae is much better than that of Pollen with staminate flower. Quality control of Pollen Typhae in market should be done through various means.

11. The characteristics of vessel elements of secondary xylem in shoots of staminate and pistillate plants o Fraxinus pennsylvanica were studied by isolation method and micrography.

12. Conclusions Quality of Pollen Typhae is much better than that of Pollen with staminate flower. Quality control of Pollen Typhae in market should be done through various mean...

13. HPLC method was proposed to analyze the variation of total flavonoids content during processing of Eucommia staminate flower tea.

14. As the rachis of the inflorescence continues to elongate, sterile flowers with abortive male and female parts appear, followed by normal staminate ones with abortive ovaries.

15. Results There existed significant difference between Pollen Typhae and Pollen with staminate flower.

16. Even though the change pattern of protein content was similar, its occurrence is much earlier in staminate than in pistillate plants.