326 



ORCHroACEAE 



dorsal sepal narrowly ovate, 3-3.5 mm. long, the lateral sepals 

 obliquely ovate, 4-5.5 mm. long, obtuse, reflexed; petals semi- 

 ovate, thickened, about 3 mm. long, slightly shorter than the 

 dorsal sepal; lip broadly linear, 5-7 mm. long; spur slender, 



15-20 mm. long. Grassy places in mountains; Hokkaido, 



Honshu, Shikoku, Kyushu. Sakhalin and s. Kuriles. 



Var. hondoensis Ohvifi. Obana-6-yama.-sagi-s6. Racemes 

 more loosely flowered; flowers 10-25, the dorsal sepal about 

 5 mm. long, the lateral sepals about 7 mm. long; spur 2.2-2.5 



cm. long. Honshu (Mount Mitsumine in Musashi, and 



Mount Fuji in Suruga). 



11. Platanthera japonica (Thunb.) Lindl. Orchis ja- 



ponica Thunb.; P. manubriata Kraenzl. Tsure-sagi-s6. 



Roots horizontal, slightly thickened; stems 40-60 cm. long, 

 stout, 5- to 8-leaved; lower 3-5 leaves narrowly oblong, 12-20 

 cm. long, 4-7 cm. wide, acute to obtuse or acuminate, short- 

 sheathed at base, the upper leaves 2-4, becoming bractlike, 

 broadly linear, racemes 10-20 cm. long, densely many-flowered; 

 bracts usually slightly longer than the flowers, acuminate; 

 flowers white; dorsal sepal elliptic, 7-8 mm. long, rather ob- 

 tuse, navicular, keeled, the lateral sepals obliquely ovate, ob- 

 tuse, about 8 mm. long; petals subdeltoid, obtuse, erect, some- 

 what thickened, slightly shorter than the sepals; lip broadly 

 linear, 13-15 mm. long; spur pendulous, linear, 3-4 cm. long. 



^May-June. Hokkaido, Honshu, Shikoku, Kyushu; rather 



rare. China. 



12. Platanthera hologlottis Maxim. Habenaria neuro- 

 petala Miq.; P. neuropetala (Miq.) Fr. & Sav.; Limnorchis 

 hologlottis (Maxim.) Nevski ^Mizu-chidori. Roots hori- 

 zontally spreading, thickened; stems stout, 50-80 cm. long; 



leaves 12-16, alternate, the upper ones gradually reduced, the 

 lower 4-6 larger, linear-lanceolate to broadly linear, 10-20 cm. 

 long, 1-2 cm. wide, acute to acuminate; racemes 10-20 cm. 

 long, densely many-flowered; bracts linear-lanceolate, long- 

 acuminate; flowers white, fragrant; dorsal sepal elliptic, flat, 

 5- to 7-nerved, very obtuse, 4-5 mm. long, the lateral sepals 

 pendulous, falcate, narrowly oblong, 6-7 mm. long, obtuse; 

 petals narrowly ovate, obtose, thickened, about 7-nerved, 

 slightly shorter than the dorsal sepal; lip ligulate, narrowly 

 oblong, carnose, rounded at apex; spur longer than the sepals, 



1-1.2 cm. long, linear, slender.- June-July. Wet places and 



bogs; Hokkaido, Honshu, Shikoku; locally abundant. s. 



Kuriles, Korea, Manchuria, and e. Siberia. 



13. Platanthera hyperborea (L.) Lindl. Orchis hyper- 

 borea L.; P. convallariaefolia Lindl.; P. ma\inoi Yabe; P. 



hyperborea var. ma\inoi (Yabe) Takeda Shirouma-chi- 



DORi, YuBARi-cHiDORi. Stems about 30 cm. long, rather thick; 

 leaves several, alternate, narrowly oblong, sheathed at base, the 

 lower to 7 cm. long, 2 cm. wide, the upper gradually reduced, 

 obtuse to acute; racemes about 7 cm. long, densely several- to 

 many-flowered; bracts nearly as long as the flowers or longer, 

 ovate-lanceolate; flowers yellowish green; dorsal sepal broadly 

 ovate, obtuse, 4-5 mm. long, the lateral sepals oblique, nar- 

 rowly ovate, obtuse, about 5 mm. long, 6-nerved; petals ob- 

 liquely ovate or narrowly deltoid, acute; lip oblong-ovate, ob- 

 tuse, about 5 mm. long; spur about as long as the sepals. 



Grassy places in alpine regions; Hokkaido (Mount Yubari), 



Honshu (Mount Shirouma in Shinano) ; very rare. Kuriles, 



Kamchatka, N. America, and Iceland. 



5. COELOGLOSSUM Hartm. Ao-chidori Zoku 



Terrestrial herbs with alternate leaves; inflorescence spicate, the flowers small, greenish, the bracts green; sepals connivent in 

 upper part and forming a hood with the petals; lip cuneate, 3-lobed, the terminal lobe minute; spur very short; anther-locules 

 distinct; pollinia oblong, partly hidden by a small bursicule; caudicles rather elongate; glands small, scarcely broader than the 

 caudicle; rostellum bifid, very low; stigma depressed. ^Few species, in the temperate regions of the N. Hemisphere. 



1. Coeloglossum viride (L.) Hartm. var. bracteatum 

 (Willd.) Richt. Orchis bracteata Willd.; C. bracteatum 

 (Willd.) Pari.; Habenaria viridis var. bracteata (Willd.) A. 

 Gray; Platanthera viridis var. bracteata (Willd.) Reichenb. f.; 

 P. bracteata (Willd.) Torr. Ao-chidori. Roots thick- 

 ened, conical, more or less lobed; stems erect, 15-30 cm. long, 

 2- or 3-leaved on lower half; leaves narrowly obovate-oblong 

 or oblong, 4-8 cm. long, 1.5-3.5 cm. wide, rounded to acute 

 at apex, sheathing at base; spikes 4-12 cm. long, rather dense, 

 many-flowered; bracts usually longer than the flower, narrowly 



lanceolate, 1-4 cm. long; flowers greenish brown, small; sepals 

 narrowly ovate, 5-7 mm. long, obtuse, 5- to 7-nerved, ascend- 

 ing; petals linear-lanceolate, 1-nerved, shorter than the sepals; 

 hp pendulous, oblanceolate, rather thick, longer than the 

 sepals, shallowly 3-lobed, the lateral lobes about 2 mm. long, 

 erect, broadly lanceolate, obtuse, the terminal lobe subrounded, 

 about 0.5 mm. long; spur narrowly ovoid, about 3 mm. long. 



May-July. High mountains; Hokkaido, Honshu (centr. 



and n. distr.) ; rather rare. Korea, China, e. Siberia, Europe, 



and N. America. 



6. TULOTIS Raf. Tombo-s6 Zoku 



Terrestrial herbs with slender slightly thickened roots; leaves 1-3, alternate;, inflorescence spicate, with small, green bracts; 

 flowers small, green or yellowish green; sepals and petals nearly equal, narrow; lip 3-lobed, the lateral lobes nearly basal, small, 

 the median lobe elongate, with a callosity at the base; anther-locules parallel or divergent, the pollinia granular, with a caudicle 

 at the elongated base. About 8 species, in e. Asia, and N. America. 



1 A. Spur linear, 5—7 mm. long; lip obtuse 1 . T. ussuriensis 



IB. Spur oblong, about 1 mm. long; lip subacute 2. T. iinumae 



1. Tulotis ussuriensis (Regel) Hara. Perularia ussuri- 

 ensis (Regel) Schltr.; Platanthera ussuriensis (Regel) Maxim.; 

 Platanthera tipuloides var. ussuriensis Regel; Platanthera herbi- 

 ola var. japonica Finet; Perularia juscescens sensu auct. Japon., 



non Lindl. Tombo-s6. Roots elongate, slightly thick- 

 ened; stems 20-50 cm. long, slender, 2-leaved on the lower 

 part, with scalelike leaves toward the top; larger leaves sub- 

 approximate, oblong to broadly oblanceolate, 8-13 cm. long, 



