臺灣中部新記錄植物：短柱赤箭（蘭科）

Gastrodia theana Aver. (Orchidaceae) a Newly Recorded Species from the Central Taiwan

短柱赤箭2005年首次於越南發表，近期亦被發現生長於臺灣中部海拔1,000 m之森林。本文提供此新記錄種之線描圖、彩色照片及分佈圖供鑑定之用。短唇赤箭之辨識特徵為花被筒外側有溝紋，蕊柱隱藏不易見。

Gastrodia theana Aver. was first publicized in Vietnam (2005). Recently, the species was found in humus of broad-leaved forest at elevations about 1,000 m in the central Taiwan. A line-drawing, photographs and distribution map of this newly recorded species are provided to aid in identification. The distinguished characters of G. theana are the perianth tube is distinctly striate outside and the column short, hardly visible.