Species Richness and Conservation Status
of Ferns and Lycophytes in Mt. Hamiguitan
Range Wildlife Santuary, Davao Oriental, Philippines

Victor B. Amoroso1, Fulgent P. Coritico1, and Peter W. Fritsch2

1Center for Biodiversity Research and Extension in Mindanao (CEBREM),
Central Mindanao University, Musuan, Bukidnon, Philippines
1Botanical Research Institute of Texas, 1700 University Drive,
Fort Worth, Texas 76107-3400, USA

An updated species list and conservation assessment of ferns and lycophytes in Mt. Hamiguitan Range Wildlife Sanctuary, Davao Oriental were provided on the basis of recent field survey and examination of herbarium specimens. One hundred and fifty-two species, belonging to 27 families and 72 genera, were recorded. The species figure is about 13% of the total number of fern and lycophyte species in the Philippines and nearly 20% of the total number on Mindanao Island. Twelve species are broadly distributed Philippine endemics and three more are found only on Mindanao. Nine species are new records for Mindanao. A site-endemic species, Lindsaea hamiguitanensis, was also documented. Of the 18 threatened species recorded, one is critically endangered, seven are endangered, and 10 are vulnerable.

Traditionally, pteridophytes include the so-called ferns and fern allies because of their shared life cycle as spore-producing plants. Recently, molecular data show that pteridophytes are paraphyletic. They are now recognized as the lycophytes and ferns (i.e. monilophytes), the latter of which includes horsetails, whisk ferns, and all eusporangiate and leptosporangiate ferns (Smith et al. 2006).
The diversity of Philippines vascular plants includes an estimated 1,100 species of ferns and lycophytes distributed among 154 genera and 34 families, according to recent classifications (e.g. Smith et al. 2006). This estimate continues to increase because of new species discoveries and new records in the Philippines (Amoroso et al. 2009; Barcelona et al. 2013). . . . . . read more

AMOROSO VB, ACMA FM, PAVA HP. 1996. Diversity status and ecology of pteridophytes in three forests in Mindanao. In: Pteridology in Perspective. Camus JM, Johns RJ eds. Kew: Royal. Royal Botanic Gardens. p. 53–60.
AMOROSO VB, OBSIOMA LD, ARLALEJO JB, ASPIRAS RA, CAPILI DP, POLIZON JJA, SUMILE EB. 2009. Inventory and conservation of endangered, endemic and economically important flora of Hamiguitan Range, Southern Philippines. Blumea 54(1–3): 71–76.
AMOROSO VB, ASPIRAS RA. 2011. Hamiguitan Range: a sanctuary for native flora. Saudi J Biol Sci 18: 7–15.
AMOROSO VB, LARAGA SH, CALZADA BV. 2011b. Diversity and assessments of plants in Mt. Kitanglad Range Natural Park, Bukidnon, Southern Philippines. Gard Bull Singapore 63(1, 2): 219–236.
AMOROSO VB, AMOROSO CB, CORITICO FP. 2012. Diversity and status of plants in three mountain ecosystems in southern Mindanao, Philippines. Asian Journal of Biodiversity 3(1): 50–73.
AMOROSO VB, CHIOU WL, LIU YC, CALLADO JRC, BRIONES NNG, CORITICO FP. 2015a. Threatened Endemic, Rare and Economic species of Philippine Pteridophytes. Central Mindanao University, Musuan, Bukidnon, Philippines: Instructional Materials and Development Center. 173 p.
AMOROSO VB, ACMA FM, DELA CRUZ RY, CORITICO FP, NIETES AD, HAMO GB, LUMISTA HP. 2015b. Diversity of herbaceous pteridophytes in four Mindanao long term ecological research (LTER) sites, Philippines. Asia Life Sci 24: 69–85.
ANDAS ST. 2015. Diversity of Trees and Pteridophytes in Pasonanca Natural Park, Zamboanga City. [Dissertation].  Musuan, Bukidnon, Philippines: Central Mindanao University 326 p.
BARCELONA JF, HERNAEZ B, PRICE MG. 1996. Philippine Schizaea. Asia Life Sci 5(1): 27–34.
BARCELONA JF. 2003a. Preliminary report on the ferns and fern allies (pteridophytes) of Mt. Bali-it, Balbalasang-Balbalan National Park, Kalinga, northern Luzon, Philippines. Sylvatrop: The Technical Journal of Philippine Ecosystems and Natural Resources 13(1, 2): 81–92.
BARCELONA JF. 2003b. The taxonomy and ecology of the pteridophytes of Mt. Iraya & vicinity, Batan Island, Batanes Province, Northern Philippines. In: Pteridology in the New Millenium. Chandra S, Srivastava M eds. The Netherlands: Kluwer Academy Publishers. p. 299–325.
BARCELONA JF. 2004. Collection and conservation status of pteridophytes in Panay Island, Philippines. Philipp Scient 4157–73.
BARCELONA JF, DOLOTINA NE, MADROÑERO GS, GRANERT WG, SOPOT DD. 2006. The ferns and fern allies of the karst forests of Bohol Island, Philippines. Amer Fern J 96: 1–20.
BARCELONA JF, NICKRENT DL, LAFRANKIE JV, CALLADO JRC, PELSER PB. 2013. Co’s Digital Flora of the Philippines: plant identification and conservation through cybertaxonomy. Philipp J Sci 142 (special issue): 57–67.
BELONIAS BS, BANOC LM. 1994. Species diversity and distribution of pteridophytes in Mt. Pangasugan. Ann Trop Res 16: 30–38.
CATAPANG MVL, REYES PJD, MEDECILO MP. 2012. Factors influencing species diversity of ferns in Mt. Makulot, Cuenca, southern Luzon, Philippines. In: 2nd International Conference on Environment and Industrial Innovation; 2-3 June 2012; Hongkong, China: IACSIT. Press, Singapore. IPCBEE 35: 98–102.
COPELAND EB. 1958-1961. Fern Flora of the Philippines, Vol. 3. Manila: Manila Bureau of Printing. 555 p.
FERNANDO ES., CO LL, LAGUNZAD DA, GRUEZO WS, BARCELONA JF, MADULID DA, LAPIS AB, TEXON GI, MANILA AC, ZAMORA PM. 2008. Threatened plants of the Philippines: a preliminary assessment. Asia Life Sci Suppl 3: 1–52.
HODGE WH. 1947. The use of alcohol in plant collecting. Rhodora 49: 207–210.
HOLTTUM RE. 1959a. Gleicheniaceae. Flora Malesiana, Series 2, 1: 1–36.
HOLTTUM RE. 1959b. Schizaeaceae. Flora Malesiana, Series 2, 1: 37–61.
HOLTTUM RE. 1959c. Cyatheaceae. Flora Malesiana, Series 2, 1: 65–176.
HOLTTUM RE. 1978. Lomariopsis group. Flora Malesiana, Series 2, 1: 255–330.
HOLTTUM RE. 1981. Thelypteridaceae. Flora Malesiana, Series 2, 1: 331–599.
HOLTTUM RE. 1991. Tectaria group. Flora Malesiana, Series 2, 2: 1–132.
HOOGLAND RD, REVEAL JL. 2005. Index nominum familiarum plantarum vascularium. Bot Rev 71: 1–291.
HOVENKAMP PH, BOSMAN MTM, HENNIPMAN E, NOOTEBOOM HP, RODL-LINDER G, ROOS MC. 1998. Polypodiaceae. Flora Malesiana Series 2, 3: 1–234
IWATSUKI K, PRICE MG. 1977. The pteridophytes of Mt. Burnay and vicinity, northern Luzon. Southeast Asian Studies 14: 540–572.
KARGER DN, LEHTONEN S, AMOROSO VB, KESSLER M. 2012. A new species of Lindsaea (Lindsaeaceae, Polypodiopsida) from Mt. Hamiguitan, Mindanao, Philippines. Phytotaxa 56: 15–20.
KESSLER M. 2010. Biogeography of ferns. In: Fern Ecology. Mehltreter K, Walker LR & Sharpe JM eds. Cambridge, United Kingdom: Cambridge University Press. p. 22–60.
KRAMER KU. 1971. Lindsaea Group. Flora Malesiana, Series 2, 1: 177–254.
LABIAK PH, SUNDUE M, ROUHAN G, HANKS JG, MICKEL JT, MORAN RC. 2014. Phylogeny and historical biogeography of the lastreopsid ferns (Dryopteridaceae). Amer J Bot 101: 1207–1228.
LEHTONEN S, TUOMISTO H, ROUHAN G, CHRISTENHUSZ MJM. 2010. Phylogenetics and classification of the Pantropical fern family Lindsaeaceae. Bot J Linn Soc 163: 305–359.
NOOTEBOOM HP. 1998. Davalliaceae. Flora Malesiana, Series 2, 3: 235–276.
ROTHFELS CJ, SUNDUE MA, KUO LY, LARSSON A, KATO M, SCHUETTPELZ E, PRYER KM. 2012. A revised family-level classification for eupolypod II ferns (Polypodiidae: Polypodiales). Taxon 61: 515–533.
SALGADO EA. 1990. A checklist of Philippine ferns. Philipp J Sci 119: 107–148.
SMITH AR, PRYER KM, SCHUETTPELZ E, KORALL P, SCHNEIDER H, WOLF PG. 2006. A classification for extant ferns. Taxon 55: 705–731.
SMITH AR, PRYER KM, SCHUETTPELZ E, KORALL P, SCHNEIDER H, WOLF PG. 2008. Fern classification. In: Biology and evolution of ferns and lycophytes. Ranker TA, Haufler CH eds. Cambridge, United Kingdom: Cambridge University Press. p. 417–467.
SUMAGAYSAY CJL. 2012. Pteridophyte diversity of Mount Pinamantawan, Tangkulang Range, Quezon, Bukidnon. [MS thesis]. Musuan, Bukidnon, Philippines: Central Mindanao University. 198 p.
ZAMORA PM, CO LL. 1986. Guide to Philippine Flora and Fauna. Economic Ferns, Endemic Ferns, Gymnosperms. Quezon City, Philippines: Ministry of Natural Resources and University of the Philippines Natural Resource Center. 382 p.
ZHANG XC, NOOTEBOOM HP. 1998. Plagiogyriaceae. Flora Malesiana Series 2, 3: 295–316.