Evolutionary analysis of pollinaria morphology of subtribe Aeridinae (Orchidaceae)

HIDAYAT, TOPIK; YUKAWA, TOMOHISA; ITO, MOTOMI. 2006. Evolutionary analysis of pollinaria <br />morphology of subtribe Aeridinae (Orchidaceae). Reinwardtia 12(3): 223–235. –– Pollinarium is one of the distinct <br />synapomorphies of Orchidaceae. With using characters derived from the pollinarium, phylogenetic relationships <br />among genera of subtribe Aeridinae was examined. Cladistic analysis showed that (1) Subtribe Aeridinae is <br />monophyletic group. (2) Five of six groups constructed in the analysis are consistent with the groups recognized in <br />previous molecular phylogenetic analyses. (3) The genera Cleisostoma and Phalaenopsis are non-monophyletic <br />group. (4) Pollinarium morphology endorses monophyly Trichoglottis and Phalaenopsis alliances. (5) Although <br />transformation of the stipe and viscidium shapes in the subtribe is subjected to parallelism, the results showed that <br />these characters are much useful in determining relationships in the subtribe than those of pollinium