S Keypour - Bioscience Faculty, Shahid Beheshti University, G.C., Evin, Tehran, Iran
H Riahi - Bioscience Faculty, Shahid Beheshti University, G.C., Evin, Tehran, Iran
A Borhani - Agriculture and Natural Research Center of Mazandaran, Passand forest and rangeland research station, Behshar, Iran
N Safaie - Department of plant Pathology, College of Agriculture, Tarbiat Modares University, Tehran. Iran

The genus Ganoderma (Family: Ganodermataceae) involves different species that most of them are well known for their medicinal properties. More than 252 Ganoderma species are described from all over the world but only seven species have been recorded from Iran. In this research Gilan province forests situated in north Iran was surveyed for Ganoderma species. Samples were collected from different sites and hosts. Macro/micro-morphological studies were carried out on the fruitingbody and samples were identified. Among 11 collected samples, five new hosts are identified for Iran; Ganoderma lucidum and G. resinaceum collected from Gleditschia caspica, G. applanatum from Pinus taede and Gleditschia caspica, G. australe from Albizzia julibrissin, and G. tsugae from Pinus taede. Siahkal, Amlash and Separdan village (Gilan Province) were new distribution sites for different species of the genus.

Ganoderma, Gilan province, Macro/ micro-morphological studies