A contribution to the study of Quercus L. in the himalayas

Fagaceae, commonly known as the beech family, has the virtues to show unique evolutionary specialization and great ecological variation. In view of this, the interesting genus Quercus L. was selected from this family to trace its existence in the Subtemperate-temperate realms of Himalaya. In all 22 species have been documented in this work through studies in the Herbaria, field and libraries during 2013–2014. An artificial key to the species was prepared to facilitate their identification. It was also evident 16 species are exclusive in the temperate region.