ORCHIDE^E. 



107 



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

 tracta 4 cm. louga 1 } cm. lata, petiolis (cum vaginis) 1-|- cm. lougis basi dilatatis 

 vagiiiiformibus caulem amplectantibus. Partes floriferse 6 cm. longse, partibus 

 inter floriferam et foliiferam 11 cm. longis liirsutis sqnamatis, sqnamis 1|- cm. 

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

 remotis subrubris tenuiter scariosis. Flores densiuscule dispositi lineari- 

 ovoidei 8 mm. lougi 2| mm. lati hirsuti, bracteis lanceolatis. Sepalum 

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

 leviter coutractum 1-nervium vel obscure 3-uervium extus hirsutum intns ela- 



Pig. 5S, Zeuy'me arisaiiensis HAYATA ; .1, a flower; b, a dorsal sepal, 

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



bruin cum petalis cormatum galeam formaris, lateralia oblique ovata 4 mm. longa 

 2 mm. lata apice acuto-obtusa interiore recui'va basi contracta extus liirsuta 

 intus glabra 1-ueiTia vel obscure 3-nervia. Petala semi-oblonga 4} mm. louga 

 1| mm. lata apice obtusissima basi leviter coutracta 1-nervia, nervo valde excen- 

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

 angulo 70 a se divaricatis quadrangularibus apice obtusis 2J mm. lougis 1 

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

 conuato tubum breve formanti margiue intus carinato basi intus 2-tuber- 

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

 lobis linearibus 1 mm. lougis. 



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



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

 layas in Ann. Roy. Bot. Gard. VIII. t. 388), but differs from it by the 

 shape of the colmnnal appendages. 



