The diversity of Pteridophytes in pepe watershed Surakarta polluted by household waste

Pepe River is one of the Bengawan Solo with a reasonably high level water pollution due to habit surroundings in throwing garbage into river. Plants that can survive polluted land conditions have tolerance level, called pioneer plants. One them ferns (Pteridophyta). This study aims identify type, abundance, Important Value Index (IVI), and index Diversity pteridophytes plant diversity Watershed. The method used this research descriptive quantitative using quadrat sampling technique 1x1 meter plot. purposive sampling. Data analysis was conducted qualitatively quantitatively. Analysis data (H’) by Shannon-Wiener. Based on results found eight species from 5 families. There are Pteris vittata, biaurita L., Adiantum lunulatum Burm.fil., latifolium Lam., hispidulum Sw, Marsilea crenata C. Presl, Microlepia speluncae (L.) T. Moore, Asplenium scandicinum Kaulf. included medium category H'= 1.44. fern highest abundance vittata 176 individuals, density 5.87 individuals/m2, frequency 0.53, an IVI 109.3%. Set side set, lowest 0.27 0.03, 5.6%. this, river areas. Information critical land, especially rivers, expected provide initial information overcoming other similar lands.