Abstract:
Dendrobium (Swartz.) species are distributed in tropical region such as Pekanbaru, Riau
province. This research aimed to know their relationship based on the morphological
characters. The morphological observation had been conducted for all of the species of
Dendrobium. The skoring result had been analyzed using Maximum Parsimony in PAUP
4.0. A total of 10 species of Dendrobium were identified in this study. The phylogenetic
results based on the MP analysis showed a cladogram with three main branches. The
ingroup species were divided into two main clads, in the same branch with outgroup. The
clad division in MP, Dendrobium crumenatum was the primitive species, while for modern
species for MP was Dendrobium linguella
