68 ORCHIDEJE. 



leviter purpurascentes. Sepalum posticum distinctum subalbuin ovato-lanceola- 

 tum 4|- cm. longuni 2 cm. latuui apice aeutum vel obtusum iiitegruin utraque 

 pagine glabrum sed ad marginem inferiorem ciliatuni parallero-nervium, sepala 

 lateralia dua subalba se comiata navicnliformia 4|- cm. longa 2|- cm. lata apice 

 breve acuminata ad sumnium 2apiculata basi leviter contracta intus glabra 

 extus glabra niargine infcriore ciliolata parallero-iiervia. Petala plus minus 

 obliqua ovato-lanceolata 5 cm. longa 18 mm. lata apice breve acuminata basi 

 obtnsa marginc integra extus glabra intus deorsum hirsuto-barbata intus deor- 

 snm purpureo-maculata niargine hand ciliolata. Labellum sessile patens inflato- 

 calceoliforme 5^-6 Jem. longuni 4cm. latum 2^- cm. altum, partibus basilaribus 

 unguiculiformibus 1 cm. longis totiusque latis ; lobi laterales ad basin calceoli 

 subimlli ; ore calceoli 17 mm. longo 7 mm. lato ; calceolus iutus prope fundum 

 barbatum flavescens radiatim pnrpureo-maculatus. Colunina brevis 1 cm. longa 

 teres 2 mm. in diametro ; antheree perfectse 2 ad latera rostelli fere sessiles 

 4mm. longseque latte subglobosae, loculis parallelis contiguis ; staminodium pone 

 rostellum incumbens late laminiforme leviter purpurasccns late sagittiforme 

 1 cm. longuni 7 mm. latum apice breve cuspidatum bast sagittatimi, facie 

 loculos 2 imperfectos fereus. Rostellum inter antheras perfectas antrorsuni 

 iiiflexum crassiusculuni obtriangularc 6 mm. latum 7 mm. longum margine 

 utroque latere lobulis singulis brevissimis instructum, subtus papilloso-stigmato- 

 sum. Capsula igiiota. 



HAB. Oiwake, ad 7500 ped. alt., leg. B. HAYATA, Aprili. 1916. 



Differs from C. japonicum in the nearly glabrous peduncles and less 

 hairy ovaries, in the maculation of light purple dots, which dots in the 

 Japanese species are nearly colorless and translucent. In the living specimens, 

 the Japanese and Formosan plants are easily distinguishable ; the flowers of the 

 former are more or less brownish, while those of the latter are whitish. In 

 the Japanese species the leaves are nearly quite expanded when flowering, but 

 in the Formosan, they are partly folded, but not quite expanded. 



Microstylis NUTT. 



Microstylis arisanensis HAYATA sp. nov. (PL XI. et fig. 10). 

 Terrestris? Radices e basi pseudobulbi orinndse iiicrassatse mimerosse. Pseudo- 

 bulbi aunotini ellipsoidei 7 mm. longi 5 mm. lati apice rotundati plus minus 



