Threatened lycophytes and ferns in four Protected Areas of Mindanao, Philippines
There are nearly a thousand threatened species of vascular plants in the Philippines and of which about 12% are lycophytes and ferns.However, there are not enough data on the distribution of the species.Thus, the threatened lycophytes and ferns were determined based on field surveys in four protected areas in Mindanao, namely Mt.Apo Natural Park, M