1. The composition and dominant species of ciliata in Lake Baiyangdian was investigated, at the same time physicochemically monitored the water quality, 48 species in all.

2. Thus, the host range of C. ciliata is essentially restricted to plants of the genus Platanus.

3. Sycamore lace bug, Corythucha ciliata (Say) is an endemic species of North America, and records firstly in fauna of China.

4. Aqueous extract from T. ciliata with high concn. had the effects of significantly decreasing blood pressure, relaxing diameter of capillary, increasing blood velocity and blood flow.

5. The factors which affected on the SSR reaction of Toona ciliata var. pubescens were studied.

6. Physico chemical properties and fatty acid composition of Elsholtzia Ciliata (Thunb. ) Hyland seed oil were analyzed by GC.

7. A preliminary investigation of composition and dominant species of ciliata in Yanghe River was conducted, and totally 46 species were detected by physicochemical monitoring of the water quality.

8. The content of unsaturated fatty acid is 90.46%. The result may be helpful for the further development of Elsholtzia Ciliata (Thunb. ) Hyland seed.