Studi Keanekaragaman Spermatophyta di Perbukitan Daerah Tlogodlingo Kecamatan Tawangmangu Kabupaten Karanganyar

Abstract

The purpose of this study was to inventarize (1) an inventory species of Spermatophyte and (2) determine the
index of diversity and dominance of Spermatophyte species of hills Tlogodlingo area. This study is a descriptive
eksplorasif study conducted Tlogodlingo in Tawangmangu District of Karanganyar. The population in this
study is all types of plants in the hills Tlogodlingo. Sample in this research is type spermatophyta in hilly of
Tlogodlingo. Determination of place as the location of sampling is done by purposive sampling. Sampling data
is taken on each observation using method of quadratic sampling. The results showed that there are 12 species
of plants Spermatophyta, namely Acacia decurrens, Ficus firtulosa, Melastoma malabathricum, Eupatorium
odoratum, Ageratum conyzoides, Imperata cyliandrica, Lantana camara, Polygala paniculata, Eupatorium
riparium, Borreria alata, Emilia sonchifolia, and Synedrella nodiflora. The value of diversity index of
Spermatophytes obtained in is 0.686 that means the diversity is low at hilly Tlogodlingo. The highest
dominance index was Imperata cyliandrica and the lowest dominance index was Synedrella nodiflora..