本文描述產於臺灣中南部的蘭科新種：齒唇莪白蘭Oberonia segawae T. C. Hsu & S. W. Chung。本種隸屬於Oberonia 亞屬，且具有下列特徵：葉狹長劍形，長可達12 公分，寬達5 公釐；花近白色，唇瓣側裂片不顯著且邊緣呈現撕裂狀。

Oberonia segawae, a new orchid species found from central to south Taiwan, is described and illustrated. This species, which belongs to subgenus Oberonia, is characterized by its narrowly ensiform leaves up to 13 cm long and 5 mm wide, its whitish flowers, and its lip with indistinct lateral lobes and irregularly laciniate margins.