Resources Distribution and Pharamacognostic Identification of Centella asiatica (L.) Urban Produced in China Pharmacognostic Identification of Dried Twigs and Leaves of Rhinacanthus nasutus Studies on pharmacognostic identification of Oplopanax elatus Microscopic characteristics and effective component‘s dissolution of nano particles ofAstragalus membranaceus var.mongholicus Pharmacognostic identification of Cryptolepis buchanaii Micro scopic characteristics of Liuwei Dihuang ultra micro pulverization Study on characteristics and microscopic characteristics of wild ginseng, wild ginseng under forest, unimplanted ginseng, and cultivated ginseng Studies on macroscopic and microscopic characteristics of Ophiocordyceps xuefengensis Identification of medicinal plants of Euphorbia helioscopia Identification of Pterocephalus hookeri Comparative research on pharmacognostic characteristics and microscopic characteristics of Radix paeoniae rubra from different areas Comparison on histology of root tubers and fibrous roots of Ophiopogon japonicus and ophiopogonins content Identification of Cornus officinalis from adulterant of Vitis vinifera