OECHIDE^E. 



107 



ovata vel ovato-lanceolata apice acuta basi obtuso-rotundata ad petiolum con- 

 tracta 4 cm. longa l cm. lata, petiolis (cum vaginis) l cm. longis basi dilatatis 

 vaginiformibus caulem amplectantibus. Partes floriferae 6 cm. longae, partibus 

 inter floriferam et foliiferam 11 cm. longis liirsutis squamatis, squamis l cm. 

 longis apice acuminatis basi vaginiformibus caulem amplectantibus a se 3 cm. 

 remotis subrubris teuuiter scariosis. Flores densiuscule dispositi lineari- 

 ovoidei 8 mm. longi 2 J- mm. lati hirsuti, bracteis lanceolatis. Sepalum 

 posticum valde concavum ovatum 5 mm. longum apice acuto-obtusum basi 

 leviter contractum 1-nervium vel obscure 3-nervium extus liirsutum intus gla- 



Fig. 5S, Zeuxim arisanensis HAYATA; a, a flower; b, a dorsal sepal, 

 expanded ; c, a lateral sepal ; d, d,' petals ; e, a lip ; f , a hair on the flower. 



brum cum petalis connatum galeam formans, lateralia oblique ovata 4 mm. longa 

 2 mm. lata apice acuto-obtusa interiore recurva basi contracta extus hirsuta 

 intus glabra 1-nervia vel obscure 3-nervia. Petala semi-oblonga 4| mm. longa 

 If mm. lata apice obtusissima basi leviter contracta 1-nervia, nervo valde excen- 

 trico, utraque pagine glabra. Labellum Y-forme, lamina tenuis 2-lobata, lobis 

 angulo 70 a se divaricatis quadrangularibus apice obtusis 2^ mm. longis 1 

 mm. vel 1|- mm. latis, ungue crasso 1 mm. lato deorsum latiore cum columna 

 connato tubum breve formanti margine intus carinato basi intus 2-tuber- 

 culato 3 mm. longo. Columna 1-2 mm. longa. Rostellum alte 2-lobatum, 

 lobis linearibus 1 mm. longis. 



HAB. Arisan, leg. S. SASAKI, Mart., 1911. 



Near Zeuxine reflexa KING et PANTUNG (Orchids of the Sikkim Hima- 

 layas in Ann. Koy. Bot. Gard. V3H. t. 888), but differs from it by the 

 shape of the columnal appendages. 



