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Abstract

The purposes of this study were study on morphology and chromosome numbers of the
family Zingiberaceae at Thung Salaeng Luang National Park during March 2001 - October 2003.
The study areas located behinded Thung Salaeng Luang National Park office, waterfall, Thung Nang
Paya, Kang Wang Nam Yen and the nature study trails. The results are as follows: Ten genera and
24 species are found at Thung Salaeng Luang National Park. The species diversity of each tribe
including descriptions, key to genera and species are discussed. Photographs and drawing of species
are also presented. Chomosome numbers of 22 species of family Zingiberaceae were determined from root tip cells by Feulgen squash technique. The Chromosome numbers of these species are
2n=22-56.

Key words: chromosome numbers and Zingiberaceae