Gastrodia shimizuana, a Newly Recorded of Gastrodia (Orchidaceae) in Taiwan

A newly recorded species, Gastrodia shimizuana Tuyama, in Taiwan is described and illustrated. This species is apparently rare and was previously known in only few localities in Iriomote Island, the Ryukyu Islands. We recently found it in the mountains at Beixinzhuang at elevations from 300 to 350 meters in northern Taipei, Taiwan. Although the flower of G. shimizana is somewhat structurally similar to that of G. pubilabiata, they are evidently different from each other in floral dimensions, petals and lip shapes, floeal color and flowering seasons.