[Medicinal plant new records in Chongqing].

By the fourth survey of Chinese medicinal resources, new medicinal plants records of 1 family, 2 genera and 6 species were reported in Chongqing.They are Annonaceae, Fissistigma, Monochasma, Sophora tonkinensis, Fissistigma retusum, Monochasma sheareri, Primula ranunculoids, Chirita pinnatifida and Hylotelephium sieboldii.All the voucher specimens are preserved in Herbarium of Chongqing Institute of Medicinal Plant Cultivation.

[Species, Damage and Community Structure of Weeds in Scrophularia ningpoensis Fields in Nanchuan, Chongqing].

OBJECTIVE: To investigate the damage and community structure of weeds in Scrophularia ningpoensis fields in Nanchuan, Chongqing. METHODS: From 2013 to 2014, an investigation was carried out by inverted W-9 point sampling method to study the weed species. RESULTS: 96 weed species belonged to 75 genera of 30 families were observed, including 18 species of Asteraceae weeds (accounted for 18.75%), 10 species of Poaceae weeds (accounted for 10.42%). Moreover, there were 57 species of annual weeds (accounted for 59.38%) and 39 species of perennial weeds (accounted for 40.63%). The overall abundance of Erigeron annuus, Digitaria adscendens, Torilis scabra, Polygonum nepalense, Ranunculus japonicas, Stellaria media and Commelina communis were relatively higher than that of the others. CONCLUSION: The difference of weed species and community structure might result from the physical and chemical characteristics of soil, moisture content, cropping system, tillage type, environmental and climatic conditions, crop distribution and weed control.

[Distribution and Community Characteristics or Epimedium myrianthum in Chongqing].

OBJECTIVE: To make clear the distribution area in Chongqing and community characteristics of Epimedium myrianthum, in order to provide evidence for sustainable utilization of resources. METHODS: Based on field investigation, recorded the GPS, and used the quadrat method to observe and analyze the abundance, frequentness and importance value of Epimedium myrianthum in the seven well-concentrated sample plots of different habitats. RESULTS: Epimedium myrianthum distributed in Changshou County, Dianjiang County, Zhongxian County and Fengdu County of Chongqing at present. The altitude of its distribution areas ranged from 351~663 m. The types of its habitats included coniferous forest, broad-leaved forest and bamboo forest. The plants in these communities were composed of 56 species belonging to 48 genera,33 families. Among associated plants, the dominant species of tree layer were Bambusa distegia, Quercus variabilis , Cupressusfunebris etc. The dominant species of shrub layer were Pittosporum illicioides, Loropetalum chinense, Myrsine africana, Ardisia japonica, Smilax china etc. The dominant species of field layer were Iris japonica, Miscanthus floridulus, Veronicastrum longispicatum, Carex lancifolia, Epimedium myrianthum etc. Species abundance index of D was between 1.1143 to 3.7781 in seven populations,the species in these communities were relatively less,and the numbers of individuals were relatively more. Compared with others, the population of the 3rd and 6th had relatively low index of H' (Shannon-wiener index) and E (Pielou index). The distribution of these species in the community was obviously uneven. The D value,H' value and E value of tree layer species richness were lower than those of shrub layer and field layer, the species diversity was worse. CONCLUSION: It is suggested to incorporate Epimedium myrianthum in the new edition of Chinese Pharmacopeia.

[Surveillance of schistosomiasis in national surveillance sites of Fuqing City and Xiapu County, 2006 -2009].

OBJECTIVE: To understand the status of national surveillance sites of schistosomiasis in Fuqing City and Xiapu County. METHODS: According to the National Scheme of Shistosomiasis Surveillance, the data of the surveillance and field survey in the national surveillance sites of schistosomiasis of Fuqing City and Xiapu County were collected and analyzed statistically from 2006 to 2009. RESULTS: Twenty residual Oncomelania snail points and 8 villages with snails were found in 36 surveillance sites. The snail areas were 35 900 m2. Serological examinations were conducted in 3 109 residents, and 17 persons were positive, 280 mobile persons from schistosomiasis endemic areas were examined serologically, and 10 persons were positive, among whom 2 had eggs and miracidia in their stools. A total of 122 appendix samples were examined, and no schistosome eggs were found. Totally 527 head of farm cattle in the region with snails were examined by stool tests, and no schistosome eggs were found. CONCLUSION: The areas of residual snails are large and wide spread, and the imported patients are found frequently, so the long-term surveillance and control are necessary.