56 BOTANICAL MAGAZTSE. rvui. xvi . 



Platanthera (Bifo]i;\?, ])i})hy11a3-'-) Matsudai Makino sp. nov, 



Variable in height,- 10-32 cm. lieigiit. Tuber slender]}' elongate, snbver- 

 tical; roots fibrous, thick, few. Stem erect, slender, glabrous, with cataphylls 

 at base. Leaves: the basal normal ones 2, approximate, subopposite, jiatent, 

 ovato-orbiciilar to elliptical, obtuse, rounded at base, sessile, shortly sheathed, 

 membranaceous, glabrous, 2-.3icm. Iting, li-3icm. wide, lateral veins several 

 on each side, transverse veinlets loose and many and irregularly anastomosing; 

 those of peduncle 2-4, much reduced in size, bract-like, distantly placed, 

 erect, witliout sheaths, tlie lower one lanceolate, the upper sidnilate or linear. 

 Raceme shorter than the peduncle, erect, narrow, Ig- 71cm. long, 7-9 mm. 

 across, densely or sub-densely several-numerous-flowered ; rachis narrow ; 

 straight, glabrous ; bracts subulate or subulate-linear, acuminate, longer than 

 or equal to the ovay and embracing it, 1 or sub-3-nervcd. Flowers small, 

 erect, 4 nmi. across, viridescent. Outer perianth oblong, olituse, mem- 

 branaceous, 1-nerved : the upper one sometimes a little shorter and 

 broader ; the lateral ones patent. Inner periantli shorter than the outer, 

 ovato-orbicular or elliptical, often somewhat oblique in form, entire, rounded 

 at apex, concave, thin or thickish, 1-2-3-nerved, about 1-1| mm. long. 

 Labellum shorter than the outer perianth, but slightly longer than the 

 inner perianth, ovato-orbicular or orbicular, obtuse, entire, often thick, con- 

 cave, glabrous ; calcar short, shorter than the labellum, oblong, obtuse at 

 apex, straight or a little curved outwards, glabrous, vertically placed. 

 Gynostemium very short, broad, %-i mm. long. Ovary nearly sessile, 

 oblong-cylindrical, 4-.5 mm. long, glabrous, shortly curved at the top. 



Hah. Prov. Uzen : Mt. Gassan {R. Yatahe and aS". Okicbol herb. Sc. 

 Coll. Imp. Univ. Tokyo, July 23, 1887, fm-ma pygmcaa) ; Prov. Echigo : 

 Mt. Myoko-zan (>S'. Matstidal July 28, 1894, /onna major-). 



A rare mountain Orchid. It has the appearance of Hermium 

 Monorclds K. Br. I have named it in honour of Mr. Sadahisa Matsuda, 

 Assistant in the Botanical Institute, Science College, Imperial University of 

 Tokyo, who kindly sent me a specimen collected by himself. 



Herminium Monorchis Pi. Br. in Ait Hort. Kew. ed. 2, V. p. 191 ; 

 Spreng. Syst. Veg. III. p. 694 ; Ledeb. Fl. Alt. IV. p. 171, et Fl. Ross. 

 IV. p. 73; Nyman Syl. Fl. Europ. p. 361; Regel Tent. Fl. Ussur. p. 158; 

 Koch Syn. Fl. Germ, et Helv. ed. 3, p. 600 ; Sowerby's Engl. Bot. IX. 



* F. Xrlinzlin, Orchiflncoarnni genera ct species, I. p. filQ. 



