330 



Orchidaceae 



5-10 cm. long, 1.5-2.5 cm. wide, short-acuminate, the reduced 

 upper leaves few, appressed to the stem; spike 10-20 cm. long, 

 rather many-flowered; bracts broadly lanceolate, 5-10 mm. 

 long; flowers green; dorsal sepal narrowly ovate, rather obtuse, 

 tlie lateral sepals obliquely oblong, obtuse, reflexed at an thesis; 

 petals narrowly ovate, nearly as long as the lateral sepals, erect; 

 lip 3-lobed nearly to the base, about 2 mm. long, the lateral 

 lobes 6-7 mm. long, the terminal lobe short, obtuse, lanceolate; 



spur clavate, 3-4 mm. long; ovary 5-7 mm. long. Sept.- 



Oct. Grassy places in lowlands; Honshu (Kan to Distr. and 

 westw.), Shikoku, Kyushu. 



4. Habenaria sagittifera Reichenb. f. H. oldhamii 

 Kraenzl.; H. tosaensts Makino; H. sagittifera var. reichen- 



bachiana Takeda ^Mizu-tomeo. Slender perennial with 



tuberous roots; stems erect, 40-70 cm. long, with few leaves on 

 the lower part; leaves linear, 5-15 cm. rarely to 20 cm. long, 

 3-6 mm. wide, gradually narrowed at tip, sheathing at base, 

 the upper scalelike leaves few, erect, linear, broadened at base; 

 spike rather densely flowered, the bracts narrowly ovate, 8-15 

 mm. long, abruptly narrowed at tip; flowers rather numerous, 

 greenish, 8-10 mm. across; sepals unequal, the dorsal rounded- 

 cordate, 3-4 mm. long, 5-nerved, the lateral sepals prominently 

 oblique, subreniform, 6-7 mm. long and as wide, strongly 

 reflexed; petals subdeltoid, much dilated on lower margins, 

 as long as the dorsal sepal, the anterior margin appressed to 

 the column; lip about 2 cm. long, 3-lobed, the lobes linear, 

 the lateral lobes obliquely spreading, about 10 mm. long, some- 

 times obsoletely toothed, the terminal lobe about 15 mm. long, 

 entire; spur about 15 mm. long, slender, with an abruptly in- 

 flated apex, nearly as long as to slightly shorter than the ovary. 

 July-Sept. Bogs and wet grassy places in lowlands; Hok- 

 kaido, Honshu, Shikoku, Kyushu. 



5. Habenaria linearifolia Maxim. H. sagittifera var. 

 linearifolia (Maxim.) Takeda Sawa-tombo. Erect per- 

 ennial with tuberous roots; stems 40-70 cm. long, few-leaved 

 on lower part; leaves linear, 10-20 cm. long, 3-6 mm. wide, 

 gradually narrowed to the tip, slightly plicate or flat, 1-costate 

 on back, sheathing at base, the upper reduced leaves few, ap- 

 pressed, linear, broadened at base; spikes 7-15 cm. long, many- 

 flowered; bracts 1-1.5 cm. long; flowers white, 1-1.5 cm. 

 across; dorsal sepal erect, ovate, 6-7 mm. long, 5-nerved, the 

 lateral sepals spreading, obliquely ovate, about 7 mm. long; 

 petals erect, subdeltoid, about 6 mm. long, with dilated lower 

 margins; lip about 15 mm. long, about 2 mm. wide, 3-lobed to 

 below the middle, the lobes linear, the lateral lobes horizon- 

 tally spreading, sometimes declined at tip, usually toothed on 

 one side near the apex; spur 3-4 cm. long, gradually inflated 



toward apex; ovary 2-2.5 cm. long. Aug. Bogs and wet 



grassy places; Hokkaido, Honshu (n. distr.). Korea, Man- 

 churia, Ussuri, and Amur. 



6. Habenaria yezoensis Hara. H. linearifolia var. 



brachycentra Hara Hime-mizu-tomeo. Slender, erect 



herb with tuberous roots; stems 25-50 cm. long, 6- to 7-leaved 

 on lower part; leaves 6-11 cm. long, 4-6 mm. wide, acute, 3- 

 nerved, sheathing at base, the upper reduced leaves lanceolate; 

 spikes loosely 2- to 8-flowered, to 10 cm. long; bracts lanceolate, 



broadened at base; flowers white, suboblong (in bud) in 

 lateral view; dorsal sepal erect, broadly ovate, about 4 mm. 

 long and as wide, 3-nerved, the lateral sepals spreading, green- 

 ish, obliquely ovate, about 5 nun. long; petals erect, white, 

 obliquely ovate-triangular, about 4 mm. long; lip greenish, 

 about 10 mm. long, the lateral lobes spreading, gently re- 

 curved, minutely toothed near apex, about 6 mm. long, the 

 terminal lobe about as long; spur greenish, about 4 mm. long, 

 curved forward, inflated toward apex; ovary about 1.5 cm. 



long. Aug. Bogs; Hokkaido. 



Var. longicalcarata Miyabe & Tatew. H. osensis Makino 

 OzE-No-SAWA-TOMBO. Spur about 15 mm. long, gradu- 

 ally inflated upward. July- Aug. Bogs; Honshu (Oze in 



Kotsuke) ; rare. s. Kuriles. 



7. Habenaria radiata (Thunb.) Spreng. Orchis radiata 

 Thunb.; Platanthera radiata (Thunb.) Lindl.; Pecteilis radiata 



(Thunb.) Raf.; Hemihabenaria radiata (Thunb.) Finet 



Sagi-s6. Slender, erect perennial with nearly spherical, 

 tuberous roots; stems 20-40 cm. long, with 3-5 leaves on lower 

 part and few scalelike leaves above; leaves ascending, broadly 

 linear to narrowly lanceolate, 5-10 cm. long, 3-6 mm. wide, 

 acuminate, sheathing at base, the upper scalelike leaves ap- 

 pressed to the stem, distant, linear, gradually acuminate; 

 bracts green, 7-12 mm. long; flowers 1-3, rarely 4, about 3 cm. 

 across, white; sepals 5- to 7-nerved, narrowly ovate, obtuse, 

 green, 8-10 mm. long, the lateral ones spreading, oblique; 

 petals white, obliquely ovate, few-nerved, erect, forming a 

 hood with the dorsal sepal, 10-12 mm. long, subacute, toothed 

 or shallowly laciniate on the outer margin; lip white, short- 

 cuneate, 3-lobed, about 15 mm. long, the lateral lobes 

 obliquely flabellate, deeply laciniate on outer margin, the 

 terminal lobe linear, rather obtuse, entire, about 1 cm. long, 



2 mm. wide, 3-nerved; spur Z-A cm. long, narrowly cylindric, 

 gradually thickened toward the apex; ovary about 1.5 cm. 

 long. Aug. Wet grassy places in lowlands; Honshu, Shi- 

 koku, Kyushu. 



8. Habenaria miersiana Champ. H. geniculata sensu 



auct. Japon., non D. Don; H. sieboldiana Miq. ^Dai-sagi-s6. 



Terrestrial, erect perennial with broadly ovoid, mberous roots; 

 stems 30-60 cm. long; leaves 4-5, broadly lanceolate to nar- 

 rowly ovate-oblong, 8-15 cm. long, 2-4 cm. wide, acute, short- 

 sheathing at base, with narrow translucent margins, the upper 

 leaves scalelike, appressed to the stem, narrowly lanceolate, 3-5 

 cm. long, with a filiform point; inflorescence rather densely 

 flowered; bracts broadly linear; flowers white, 2-2.5 cm. 

 across; sepals narrowly ovate, 10-13 mm. long, acute, the 

 lateral sepals oblique and slightly deflexed; petals lanceolate, 

 8-10 mm. long, acuminate, entire, 1- to 2-nerved, forming a 

 hood with the dorsal sepal; lip 15-18 mm. long, 3-lobed, the 

 lateral lobes spreading, broadly cuneate, shallowly laciniate, 

 the terminal lobe linear, 1-nerved, 5-8 mm. long; spur about 



3 cm. long, gradually thickened toward the obmse apex; ovary 



about 2 cm. long. Aug.-Oct. Thickets; Honshu (Awa 



Prov.), Shikoku, Kyushu; rare. Ryukyus, Formosa, and s. 



China. 



11. ANDROCORYS Schltr. Misuzu ran Zoku 



Small terrestrial plants with a single, erect, narrow, radical leaf, the scape naked; spikes loose; flowers small, few; dorsal sepal 

 erect, concave, ovate, adnate to the base of petals, the lateral sepals reflexed, oblong; petals spreading, concave, oblique, ovate- 

 rounded, forming a hood with the dorsal sepal; lip small, entire, ligulate, narrowed toward the obtuse apex, adnate to base of 



