68 ORCHIDE.E. 



leviter purpurascentes. Scpalum posticum distinctuni subalbum ovato-lanceola- 

 tum 4 cm. longum 2 cm. latum apice acutum vel obtusum integrum utraque 

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

 lateralia dua subalba se connata naviculiformia 4 cm. longa 2 cm. lata apice 

 breve acuminata ad summum 2-apiculata basi leviter contracts, intus glabra 

 extus glabra margine inferiore ciliolata parallero-nervia. Petala plus minus 

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

 obtusa margine integra extus glabra intus deorsuui hirsuto-barbata intus deor- 

 sum purpureo-maculata margine haud ciliolata. Labellum sessile patens inflato- 

 calceoliforme 5J-6J cm. longum 4 cm. latum 2 cm. altuni, partibus basilaribus 

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

 subnulli ; ore calceoli 17 mm. longo 7 mm. lato ; calceolus intus prope fundum 

 barbatum flavescens radiatim purpureo-maculatus. Columna brevis 1 cm. longa 

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

 4 mm. longseque latse subglobosse, loculis parallelis contiguis ; staminodium pone 

 rostellum incumbens late laminiforme leviter purpurascens late sagittiforme 

 1 cm. longum 7 mm. latum apice breve cuspidatum basi sagittatum, facie 

 loculos 2 imperfectos ferens. Rostellum inter aiitheras perfectas antrorsum 

 inflexum crassiusculum obtriangulare 6 mm. latum 7 mm. longum margine 

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

 sum. Capsula ignota. 



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 niaculation of light purple dots, which dots in the 

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

 the Japanese and Formosau 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. (PI. XI. et fig. 10). 

 Terrestris ? Radices e basi pseudobulbi oriundse incrassatse numerosse. Pseudo- 

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



