(1) Appearance identification

Ganoderma lucidum powder is light brown, tan to purple brown. The hyphae are scattered or stuck into clumps, colorless or light brown, slender, slightly curved, and branched. Diameter 2.5~6.5 microns. The spores are brown, ovate, with a truncated top, colorless outer wall, and verrucous protrusions on the inner wall, 8 to 12 microns long.

(2) Test identification

Take 2 grams of Ganoderma lucidum sample powder, add 30 ml of ethanol, heat and reflux for 30 minutes, filter, evaporate the filtrate to dryness, and dissolve the residue with 2 ml of methanol, as Test solution. Take another 2 grams of Ganoderma lucidum control medicinal material and prepare the control medicinal material solution in the same way. Use thin layer chromatography to test. Take 4 microliters of each of the above two solutions and place them on the same silica gel G thin layer plate. Use petroleum ether (60~90℃)-ethyl formate-formic acid (15:5:1) The upper solution is the developing agent, unfold, take out, dry, and inspect under UV light (365 nm). In the chromatogram of the test product, fluorescent spots of the same color appear at the positions corresponding to the chromatogram of the control medicinal material.