This study was conducted to assess the species composition and conservation status of pteridophytes in the north-eastern portion of Mount Timolan Protected Landscape. The studyrevealed a total of 98 species comprising 52 genera from 21 families. Tectariaceae, Polypodiaceae and Dryopteridaceae… More

This study was conducted to assess the species composition and conservation status of pteridophytes in the north-eastern portion of Mount Timolan Protected Landscape. The studyrevealed a total of 98 species comprising 52 genera from 21 families. Tectariaceae, Polypodiaceae and Dryopteridaceae was the most represent family with Tectariaceae accounts the highest in terms of genera (9), followed by Polypodiaceae (8) and Dryopteridaceae (6). Whereas, Polypodiaceae has the highest in terms of species record (16 spp.), tailed by Tectariaceae (14 spp.) and Dryopteridaceae (10 spp.). Out of 98 recorded species, 95 were only identified up to species level. High number of accounted family of terrestrial ferns and lycophytes are known as good ecological indicator taxa for habitat destruction and level of human disturbances. In terms of status, eleven (11 spp.) are endemic to Philippines, eighteen (18 spp.) are economically important species, nine (9 spp.) vulnerable, five (5 spp.) classified as other threatened species and two (2 spp.) are nonnative species of ferns and lycophytes was recorded. Generally, the high species richness of pteridophytes found in the north-eastern portion of Mount Timolan Protected Landscape are influenced by elevation gradient and susceptibility to human disturbances. Less

Philippines is one of the biodiversity hotspots of the world, being home to most of the endangered species. It is important to give utmost attention to these plant taxa considered threatened, endemic, and economically important. The primary concern of this… More

Philippines is one of the biodiversity hotspots of the world, being home to most of the endangered species. It is important to give utmost attention to these plant taxa considered threatened, endemic, and economically important. The primary concern of this study to provide data on the occurrence and distribution of the threatened seed plants in Mindanao. Determination of these seed plants was based mainly on existing literature. Likewise, field observations were done in selected mountains in Mindanao to validate the occurrence and conservation status of these plants listed in the Philippine database. A total of 190 species of threatened seed plants were reported from Mindanao comprising 180 angiosperm species and ten gymnosperm species. More than half (133 species) of these threatened plants are endemic to the Philippines; 46 are placed in the critically endangered category, 69 endangered and 67 vulnerable. The families Orchidaceae and Dipterocarpaceae contained the highest number of threatened species. The family Melastomataceae is distinctly noted to have species which are all endangered and endemic to the country. The highest occurrence of threatened seed plants was observed in Mt. Malindang, Misamis Occidental. It is concluded that Mindanao houses some threatened, endemic, and economic seed plants. Less