The distribution and morphological characteristics of CA-containing cell bodies of diencephalon in 7-9monthold fetuses were studied by means of Faglu histofluoresccnce method. Although the general distribution of CA cell bodies in the human diencephalon observed in the present study is similar to that in other mammals, there are some significant differences. A great number of CA neurons occur within the lateroventral hypothalamic zone. There are more numerous larger CA neurons distributed outside the periventricular gray in human diencephalon.

The distribution and morphological characteristics of catecholamine(CA)-containing neurons in the human brain stem of 7-9-month-old fetuses were studied by using Faglu histofluorescence method. The distribution of the main CA groups is consistent with the data provided by the literature concerning human infant and adult except for the presence of numerous small premature-looking fluorescent cells in the fetal area postrema which is lacking in the human infant and adult. As compared with most studies of other animals, the CA neurons of the dorsocaudal extension of the locus coeruleus in human appear to be more extensive and do not close to the ependyma of the fourth ventricle. Moreover, the CA neuronal population in human midbrain become more hypertrophic and appear to be more complexly organized in comparison with those in animals.

This article was aimed to carry a comparative study on the quality of 16 populations of wild herbs of rare and endangered plant ofPsammosilene tunicoidesin order to provide a basis for its domestication, GAP and selective breeding. Methods for determination of moisture content, total ash and extract content were taken in this comparative study. The results showed that different populations had different moisture content, total ash and extract content. The moisture content and the total ash ofXiang-Shan population were the lowest; and the extract content was the highest. The total ash ofLiu-De population was the highest; and the extract content was the lowest. The moisture content ofShun-Zhou population was the highest. It was concluded that different populations had different quality among 16 populations of wild herbs. Therefore, there was a probability to choose the best population.