A New Drying Method of Plant Specimens for Scanning Electron Microscopy the t-Butyl Alcohol Freeze-Drying Method A Comparison among the Ultrastructures and Characteristics of Wing Scales of the Fall Webworm and Other 5 Tiger Moth Species (Lepidoptera: Arctiidae) Cuticular Diversity of the Seed Outer Envelope in Ephedra (Ephedraceae) with a Discussion on Its Systematic significance SEM observation on pollen morphology of 12 lily species MORPHOLOGY OF WOOD FRACTURE OF CHINESE FIR AND MASSON PINE