1906.J 



OBSERVATIONS ON THE FLORA OF JAPAN. 



hairs including the rachis of the raceme, with 2 membranaceous adpressed 

 sheaths at the base. Leaves 2, placed in the middle of the whole plant, 

 oppositely approximate, patent, orbieulato-subreniform, obtuse or acutlsh at 

 the apex, broadly truncato-subcordate below and very slightly produced at 

 the sessile base, entire and more or less crispulate on margin, membranaceous, 

 glabrous, 18-25 mm. long, 25-30 mm. broad, 7-nerved, the outer nerve 

 with an external branch ; reduced leaves few (about 2), loosely disposed on 

 the stem between leaves and raceme, adpressed or erect-patent, subulate, 

 acuminate, squamiform, glabrous, viridescent, about 2| mm. long. Raceme 

 erect, loosely about 11-flowered, about 4-5 cm. long; rachis filiform, straight; 



bracts erect-patent, apparently shorter than 

 pedicels, ova to-subulate, deltoid-subulate, or 

 lato-ovate, acuminato-acute, membranaceous, 

 1-nerved, l-A-2 mm. Ions. Flowers small 

 luteo-viridescent ? ; pedicels erect-patent, 

 gracile, pubescent, about 3^-4 mm. long. 

 Perianth equal in length, obtuse, mem- 

 branaceous, 1-nerved, about 2J mm. long. 

 Sepals : the superior one {Fig. III. 1.) 

 ovato-lanceolate ; lateral ones {Fig. III. 2.) somewhat oblique in form, 

 lanceolate-oblong. Petals (Fig. III. 3.) linear. Labellnm (Fig. III. 4.) 

 twice as long as the perianth, lato-linear below, divergent with 2 short- 

 oblong obtuse and slightly oblique lobes above, with a minute point in the 

 bottom of the open sinus, the median vein thick, veins which run to the 

 lobes 3 and simple or sometimes forked ; basal teeth very minute and obsolete. 

 Column about 2 mm. long ; anther lato-ovate, obtuse and very shortly bifid 

 at the apex ; rostellum orbicular ; stigma roundish. Ovary oblong, glabrous, 

 about 2 mm. lony. 



Nom. Jap. Talcaue-futabaran (nov.j. 



Hob. Prov. Shinano: Mt. Ondake (It. Yatalel herb. SSc. Coll. Imp. 

 Univ. Tokyo, July 27, 1880.); Prov. SHiMOTfcLKE : Mt. Konsei-tOge in Nikko 

 (J. Matsumura ! herb. ibid. July 22, 1885). 



This has a resemblance to Listera pulerula Maxim, from Western 

 China, but differing from it by the form of leaves and sepals, and the length 

 of the labellum. It comes also near to L. Savatieri Maxim., but also differs 

 from the latter by the forui and position of leaves, and the form of the labellum. 



JII X5 



Listera nipponica Makino sp. nov, 



