KARAKTERISASI MORFOLOGI TANAMAN NYAMPLUNG (CALOPHYLLUM INOPHYLLUM LINN.) DI PURWOREJO

Nyamplung (Calophyllum inophyllum Linn.) is one of the most potential forest plant species to be flourished. C. inophyllum seed can be deformed into oil as biofuel. Mostly C. inophyllum grow along the coastline, especially in Ngombol and Grabag, Purworejo. At those sites, there are a lot of C. inophyllum plant population, but its varieties are not studied yet, therefore it is necessary to study the characterization of its morphology. This study aims to obtain the morphological character data, and to analyze the diversity of C. inophyllum plants in Purworejo. Samples are selected intentionally (purposive sampling), thus morphological data elaborated descriptively and the cluster is analyzed by NTSYS program. The study shows the diversity and also the similarity of morphological characters. The morphological character of C. inophyllum fruit and seed has its fruit length 2,1 - 3,1 cm, fruit diameter 1,93 - 2,95 cm, fruit weight 3,04 - 12,82 g, fruit shape is spherical / round, and fruit hardness 92,5 – 99,57 N. Moreover, it has seed length 1,16 – 2,22 cm, seed width 1,16 – 1,79 cm, seed weight 0,74 – 3,06 g, seed shape are spheroid, ellipsoid, reniform and the color is yellow. All observed variables are varied, except the color of old leaves, leaf shape, leaf margin, luster of the upper and lower surface of the leaves, the shape of the fruit and the color of the seed. The variance of morphological characters is 26%, which categorized as low and Grabag district is more potential on growing and production than Ngombol district. Keywords: Nyamplung, purposive sampling, the level of diversit