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`Mushrooms play an important role in the ecological system by reducing organic compounds into inorganic compounds. They are also known to be effective in the treatment of cancer and are as excellent health food rich in protein and minerals. A collection of stamps featuring edible mushrooms is now being issued by the ministry of Information and Communication to bring the public`s attention, both at home and abroad, to the importance of mushrooms a plant resource. Lentinus lepideus Fr. This plant is an edible mushroom belonging to the osyster mushroom family. It can be found in the northern hemisphere growing on or near the stamps of pine trees from early summer to autumn. Its pileus is hemispherical or flat and its color varies from brickred to puff color. Its spores are ellipsoid or conical. Laetiporus sulphures var.miniatus Imaz. This plant belongs to the Polyporaceae family and is widely distributed in Korea, Japan, and tropical regions in Asia. This species is found throughout the year growing around the base of trees and old stumps in conifer forests. Its pileus is semi-circular or fan-shaped and is wine or yellowish-wine in color but turns white when dried. Its sports are colorless and ellipsoid. Corprinus comatus Pers. This plant belongs to the ink cap family and grows in clusters in lawns and gardens from spring until autumn. It is distributed throughtout almost the entire golbe. Its pileus is conical or elongate-egg-shaped and is light grayish yellow or pale ocher. The gills at maturity and dissolve into a liquid. This bears ellispoid spores. Russula virescens Fr. This plant belong to the Russula cyanoxantha family and grows around the stumps of shade trees in acidic soils in Korea, China, Europs, and North America from summer to autumn. The pileus is hemispherical at first but become infundibuliform as it grows and is green or greysh-green in color. This species produces globelike spores.`