冬虫夏草为麦角菌科真菌冬虫夏草 Cordy—ceps sinensis(Berk.)Sacc.寄生在蝙蝠蛾科昆虫幼虫上的子座及幼虫尸体的复合体。其虫体表面呈深黄色至黄棕色。在采购时,不法药贩利用其深黄色的特点,人为地将大量的黄土泥掺入冬虫夏草中,以增加其重量。笔者最近检查一批冬虫夏草,发现其表面包有一层黄土泥,其颜色与冬虫夏草颜色颇相似,用水冲洗 Cordyceps sinensis is a complex of Cordyceps sinensis (Berk.) Sacc., an ergot fungus, which is parasited on the larvae of bat moths and larvae. Its body surface is dark yellow to yellow brown. At the time of purchase, unscrupulous drug dealers used their deep yellow characteristics to artificially incorporate large amounts of loess soil into Cordyceps sinensis to increase their weight. The author recently inspected a batch of Cordyceps sinensis and found that the surface was covered with a layer of loess mud. The color was similar to the color of Cordyceps sinensis and was rinsed with water.