1905.] OBSERVATIONS ON TIIE FLORA OF JAPAN. 25 



titute of the blade but 6-8-fimbriate (the middle hair very short but others 

 long) at the top. Flower normally expanded (for a few hours in day) in 

 air, small, axillary, solitary, pedicellate, ebracteate, a few to a plant, 6 mm. 

 across, greenish ; pedicel erect when flowering and then soon curved down- 

 wards, longer than the flower and leaves, 6-18 mm. long. Calyx deeply 

 5-parted, green ; segments patulous, ovato-oblong or oblong-lanceolate, obtuse, 

 minutely subdenticnlate, vein inconspicuous. Petals 5, erect-patent, longer 

 than the calyx, obovato-oblong, rounded-obtuse, membranaceous, with a few 

 delicate veins, marcescent, 3^-4 mm. long. Stamens 5, included ; filaments 

 linear-subulate, erect ; anther broad, didymous, introrse, subconnivent. 

 Ovary ovoid, shorter than the calyx, 1-locular, 5-placentiferous, thin- 

 walled ; styles 5, filiform, shorter than the ovary, patent, then soon strongly 

 curved upwards and its irregularly many-parted terminal stigmas conniv- 

 ent together with anthers ; ovules 10, 2 to a placenta and situated in its 

 middle, obovato-oblong, more or less contracted below, with a very short 

 funicle. Capsule globoso-ovoid, longer than the persistent calyx, with styles 

 at the top, 1-locular, 5-thin-valved, 10-seeded; 4-5 mm. long. Seeds 

 ellipsoid, with a process at the base, 1 mm. across ; testa black, crustaceous, 

 shining ; embryo very minute and short ; albumen copious. Flowers July- 

 August. 



Nom. Jap. Muzina-mo (T. Makino). 



Hah. Prov. Musashi : Yoda in Koiwa-mura (T. Makino I May 11, 

 1890, Aug. 1893, Aug. 7, 1894, Aug. 1902; S. Ikenol herb. Sc. Coll. 

 Imp. Univ. Tokyo, Sept. 1890) ; Prov. Hitachi : Nasaka-ura in Namekata- 

 gori (Y. Suzuki \ July 15, 1902). 



Kare. In ours, the flower is normally expanded and the petals are 

 not calyptrately connivent. It was discovered by me in May 11, 1890, 

 and July, 1891, in flower, in stagnant water of a small pond about 

 rice-field in Yoda at Koiwa-mura on the river side of Yedo (a main divis- 

 ion of & Tone), about 7 miles east of Tokyo. Its occurrence in this 

 country is very interesting for the investigation of Japanese Flora. 



Platanthera (Bifolia?) Okuboi Makino sp. nov. 



A terrestrial orchid, 20-45 cm. high, glabrous. Tuber elongately an- 

 gustato-fusiform, perpendicular ; roots few, simple. Stem erect, stout, 

 straight, sheathing with 2-3 vaginate cataphylls at the base. Leaves 5-8 ; 

 the lower 2 larger and normal, equal or nearly so in size and in form, 



