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| Photo by Madame Popow | Photo by Madame Popow |
| August 2008 at mountane forest |
August 2008 at mountane forest |
| Family | Orchidaceae |
| Subfamily | Spiranthoideae |
| Tribe | Cranichideae |
| Subtribe | Goodyerinae |
| Scientific name | Myrmechis japonica (Reichenbach f.) Rolfe |
| Synonyms | Rhamphidia japonica Reichenbach f. |
| Common name | (Japanese common name) aridoushi-ran [turu-aridoushi like orchid (turu-aridoushi = Mitchella undulata Siebold & Zuccarini)] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu (north of Kinki region), Shikoku |
| (Other nations) Russia (Far East), Korea, China | |
| Habitat | Mountane forest. |
| Chromosomal number | 2n=56 |
| Description | Plants electing 3-8cm tall. Leaves 4-12mm long, 3-8mm wide, petioles 5-10mm long. Flowers 1 or 2 at top, white, calyx lobes 6-7mm long, labium ca. 2.5mm long (upper surface), longer than calyx lobes, flowering in July to August. Terrestrial. Perennial plants. |
| Note | Myrmechis japonica (Reichenbach f.) Rolfe often occurs near Mitchella undulata Siebold & Zuccarini (Rubiaceae). Both flowers are small and very similar to each other. Due to these, it is relatively difficult to find native Myrmechis japonica in the dark forest. |
| Myrmechis japonica (Reichenbach f.) Rolfe var. tsukusiana Masamune occurs in Shikoku (Mt. Tsurugi) and Kyushu (Yakushima Island) of Japan. Label is shorter than calyx lobes. | |
| Myrmechis japonica (Reichenbach f.) Rolfe var. sasakii (Yamamoto) S.S. Ying occurs in Taiwan. Yellow flowers. |
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| Photo by Madame Popow | Photo by Madame Popow |
| August 2008 at mountane forest |
August 2008 at mountane forest |
