New natural hybrid in the genus Gastrodia: Gastrodia × nippo-uraiensis (Orchidaceae) from Yakushima Island, Japan

Taiwania

Kenji Suetsugu¹  Shingo Kaneko²  Tian-Chuan Hsu³ 

[1] Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan.;Faculty of Symbiotic Systems Science, Fukushima University, Kanayagawa 1, Fukushima 960-1296, Japan.;Herbarium of Taiwan Forestry Research Institute, No. 53, Nanhai Rd., Taipei 100, Taiwan.;

关键词: Gastrodia;    Japan;    Mycoheterotroph;    Natural hybrid;    Orchidaceae;    Ryukyu;    Taxonomy;   

DOI  :  10.6165/tai.2018.63.220

来源: DOAJ

【 摘 要 】

We describe a new taxon of Gastrodia (Orchidaceae), G. × nippo-uraiensis from Yakushima Island. Gastrodia × nippo-uraiensis shows similar outer appearances with both G. nipponica and G. uraiensis. It could, however, be easily recognized by the 13–16 mm long perianth tube which is distinctly smaller than G. nipponica (Honda) Tuyama and distinctly larger than G. uraiensis T.C. Hsu & C.M. Kuo. In addition, G. nippo-uraiensis bears mixed or intermediate floral morphological characters between G. nipponica and G. uraiensis. Therefore, this taxon can be considered as a natural hybrid between G. nipponica and G. uraiensis. The morphological characteristics and illustrations of the new taxon, G. nipponica and G. uraiensis are provided.

【 授权许可】

Unknown