| Summary: | Bark morphology was found useful in distinguishing between some tropical tree species, especially during inventory for stock mapping in the tropical rain forest reserve. The present study was to determine the variety of the morphology of matured bark while producing a bark morphology description that allows the identification of nondipterocarp
tree species in the field. From these, some useful
taxonomic characters to distinguish non-dipterocarp species could reach a better approach. The investigated non-dipterocarp bark samples consisted of 64 species from 29 families. The materials for this study were by field note, bark samples and photographs taken from both felled and standing tree from Compartment 40, Deramakot Forest Reserve. The field examination on bark was done macroscopically. Further microscopic identification was done in the
laboratory by using the stereomicroscope for detail characteristics descriptions writing. The data combination of colours and all the three main parts of the analysed bark descriptions: bark texture, bark patterns and exudation characters or smell gave a fully description of bark morphology for each species. A large number of macroscopic
bark terms listed in Junikka's (1994) study used to describe the investigated barks. The comparison between obtained results and the existing studies, a revealed that profound distinct characteristics of slash of the tree bark showed more variety of living bark patterns. These visible bark pattems on fiving bark were mainly related with the
growth structure of bark. The outer bark surface patterns also showed the unique feature for certain species. The results also showed that some of the species exhibited similar features within their genus or family. In condusion, matured barks of tropical non-dipterocarp tree species showed the variety of bark morphology.
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