Ferns and lycophytes in Sambonotan Watershed, Dinagat Island, Philippines

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Research Paper 01/02/2019
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Ferns and lycophytes in Sambonotan Watershed, Dinagat Island, Philippines

Mark Arcebal K. Naive, Angel M. Bontilao, Nourelle M. Calam, Chin-chin Demayo, Charleston B. Gapo, Amor S. Habagat, Honey Joy B. Soleria, Christine Mae B. Tecson, Ruben F. Amparado, Olive A. Amparado
J. Bio. Env. Sci.14( 1), 17-22, February 2019.
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Dinagat Island is considered as one of the areas in the Philippines characterized by ultramafic outcrops, and has a unique faunal and floral composition, with a high level of endemism. However, knowledge on the fern and lycophyte flora of the island is poorly known and relatively still undocumented. This study presented the survey of ferns and lycophytes in Sambonotan Watershed, Tubajon, Dinagat Island, Philippines. Floristic surveys revealed a total of 26 species belonging to 17 families and 23 genera. Out of 26 recorded pteridophytes, five are threatened Philippine plant species. These are Adiantum hosei, Blechnum egregium, Drynaria quercifolia, Osmunda banksiifolia and Sphaeropteris glauca. This pioneer pteridophyte inventory represents the floristic diversity and will serve as baseline information for future researches in the area.


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