摘要
The fruticose lichen Usnea is a cosmopolitan genus also found in the mountains of the Philippines.Despite its abundance,though,this lichen genus is not extensively studied in the country.Since the Philippine Usnea holds great potential in pharmaceutical and agricultural research,the basic knowledge on this lichen is important to establish.Therefore,this paper takes a detailed review of Usnea in the Philippines and summarizes all the literatures that have been conducted on it in all aspects.Further,the provinces that were already reported of the occurrence of this genus are plotted in one figure to also highlight those that have not been explored yet.Currently,81 species of Usnea were reported in the country.This includes a species that was previously under the genus Usnea but has been arguably reclassified to a different genus in the present(i.e.,Eumitria).This review also hopes to direct future studies regarding Usnea.
