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Northern parts of the Iran, including Guilan and Mazandaran, are known as the best Hyrcanian forest place in the world. Most of these lands are rolling or hilly topography. There are several types of edible or medicinal mushrooms that either grows on wood (i.e., logs) or on the forest floor. My extension program in Guilan focuses on the production of shiitake (Lentinula edodes L.) mushrooms because they are becoming the best known of the exotic mushrooms, but there are several others to consider as source of medicines. In this research we overlooked mushrooms as medicinal gadgets and reviewed some varieties like Lentinula edodes L, Grifola frondosa L., Agaricus spp. L., Pleurotus spp., Morchella spp. L., Stropharia rugosa-annulata L,. Hericium spp. L., Ganoderma lucidum L. and etc. Finally we introduced some remarkable overview on some highlighted ones with point of their importance.

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Dracocephalum moldavica L Lamiaceae, is commonly consumed as a food-related product and as a herbal. According new ways in UV effects on live organisms, this research was studied the effect of UV-A and UV-C bands on the herbaceous drug. The plants were grown in a uniform environment in the culture room and exposed to UV rays (20 minutes UV-A daily and UV-C for 10 minutes) after 10 days in six weeks. Indices of fresh and dry weight of aerial and root organs, leaf area, chlorophyll a, b and total chlorophyll content were investigated. The results of the comparison of the mean of the studied traits showed that there was a significant difference between treatments, so that the highest amount of each of the traits was related to the control treatment and the least amount was related to treatment of UV-C bands. This study shows the sensitivity of the plant to the UV rays and the sensitivity of the plant to UV-C bands is higher than the UV-A bands.