Studies on the Identification of Selaginella heterostachys by Microscopic Observation and Near Infrared Spectra

To establish parameters for identification of the medicinal material of two types of Selaginella heterostachys,several methods,including the morphological,microscopic and near infrared spectroscopic ones,were used in this study.The two types of S.heterostachys differ obviously in the morphological characters,but there are few differences in the spore appearance,histological characters of the stems,and the near infrared spectra.The results provided basis for classification of the species and identification of the medicinal material.