Abstract. A new species and a rediscovery in the genus Saurauia (Actinidiaceae) from Zamboanga Peninsula, Mindanao island, Philippines are presented here. The new species, Saurauia abbreviata, closely resembles Saurauia lanaensis Merr. but can be differentiated by having longer petioles, uniformly setose adaxial leaf surface, longer and wider leaves, more lateral veins, 3 styles, and a 3(–4)-locular ovary. This discovery raises the current number of recognized Saurauia in the Philippines to 57 following an 87-year gap in the taxonomic study of this genus in the country. S. longipedicellata Merr. is also rediscovered after almost a century. A lectotype is here assigned for this name selected among the syntypes. Photographs, ecological notes, and an amended description are also provided to aid taxonomic identification.   Abstrak. Usa ka bag-ong species ug nadiskobrehan pag-usab sa genus nga Saurauia (Actinidiaceae) gikan sa Zamboanga Peninsula, isla sa Mindanao, Philippines ang gipresentar dinhi. Ang bag-ong species, Saurauia abbreviata, nahisama pag-ayo sa Saurauia lanaensis Merr. apan ang bag-ong species adunay labi ka taas nga mga petioles, uniformly setose ang ilalom nga dahon, mas taas ug mas lapad nga dahon, labi pang mga lateral veins, 3 styles, ug 3(–4)-locular nga obaryo. Ang nadiskobrehan nagdugang sa kadaghanon sa mga giila nga Saurauia sa Pilipinas ngadto sa 57 human sa 87 ka tuig nga gintang sa taxonomic nga pagtuon sa kini nga genus sa nasud. Ang Saurauia longipedicellata Merr. nadiskobrehan usab pagkahuman sa hapit usa ka gatus ka tuig. Ang tipipikasyon gihimo dinhi aron mapalig-og ang ngalan. Mga litrato, mga notang ekolohikal, ug giusab nga hulagway alang sa maong species makita usab dinhi.

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The Philippines is among the severely deforested countries in the tropics and in Southeast Asia. Deforestation resulted to the massive loss of species including aggravated environmental-related disasters and calamities. Recent government program aimed to reforest degraded lands had been initiated through the "National Greening Program" thus the need to identify potential indigenous and endemic species to be used for forest restorationand/or reforestation was recognized. Using the "framework species approach" (FSA), this study was conducted to determine potential candidate species. Sampling method involves

Serpentine soils also known as ultramafic soils comprise 5 percent of the total land area of the Philippines. Majority of the ultramafic soils occur at the edges of the mainland and small island groups. However, little information had been known regarding inland ultramafic forest ecosystems just like Mt. Kiamo, which form part of the northern Mindanao ultramafic soils. Nine sampling plots with 20x20m dimensions were established within the lower, middle and top elevations at 1,563 to 1,782 masl. All plants having ≥5cm dbh were identified and recorded. Soil characterization was done by digging a 1x1m hole at variable depths within sampling plots. Composite soil samples were collected on every horizon and analyzed. Result showed that Mt. Kiamo is composed of 151 species belonging to 114 families and 129 genera. The dominant species include Symplocos ophirensis, Myristica sp., Polyosma integrifolia Blume, Calophyllum soulattri, Phyllanthus everettii, Madhuca sp., Scaevola micrantha, Ardisia elliptica, Weinmannia urdanetensis, Morella javanica, and Omalanthus fastuosus. Soil analysis revealed an extremely high level of Ni, Cr, Mn and Fe. Canonical Correspondence Analysis showed that species' dominance, frequency, and diversity was influenced by Ni, soil moisture and thickness while plant density was influenced by Cr and bulk density.