132 OECHIDE^. 



latum, S-neryium, basi latissimum leviter contractnm, apice obtusum, lateralia- 

 valde longiora linearia 13 mm. longa 3 mm. lata, 3-iiervia, sed basi 5-nema,, 

 flava, nervis nibescentibus, apice obtusa, basi plus minus obliqua, basi 

 columnse pedi adnata mentum 2 mm. longum formantia, supra basin in- 

 trorse tortuosa latere exteriore a se coboerentia, facie exteriore basi 3-lineari- 

 maculata. Petala breviora quam sepalo postico, oblonga, 3 mm. longa If mm. 

 lata, apice rotundata, 3-nervia fusco-purpurasceutia, leviter reflexa vel cpncava. 

 Labellum brevius mentum in longitudine sequans basi erectum a medio sursum 

 valde extrorse recm-Tum, crassiusculum, margiue erectum apice obtusum acutum 

 Tel emarginatum, medio discis linearibus 1 vel 2 instructum, 2 mm. longum 

 basi purpurascens. Columna brevissima, 1 1 mm. longa, apice (clinandrium) 

 latere bicornuta, basi in pedem 2 mm. longum producta, (pede interiore recm'vo 

 lineari complanato) apice abrupte incurvis dilatatis. Antliera globosa, ^ 

 mm. in diametro. PoUinia 4 ; 2 majora, 2 minora. Capsula prematm'a 

 cylindrico-fnsiformis, 2 cm. longa 5 mm. lata, apice obtusa, basi attenuata,. 

 triquetra, facie leviter l-costata. 



Hab. M. Arisan, prope Taroyen, leg. B. Hayata et S. Sasaki, Jan., 1912. 



The orchid was found creeping on a large stone at a sunny place on 

 the left side of the Arisan- road near Taroyen. 



Bulbophyllum gracillimum Hayata sp. uov. Epiphytica, caulibus 

 gracillimis prostratis ad nodos radicantibus, teretibus | mm. in diametro sectionis, 

 internodiis 1-2 cm. longis, ad nodos vaginatis, vaginis 3 mm. longis, 

 ore truijcatis. Folia subsessilia crassa, elliptica vel elongato-elliptica, 22 mm., 

 longa 9 mm. lata apice rotundata mucronata vel emarginata, basi plus minus 

 contracta ad potiolum 1-2 mm. longum abeuntia, multinervia. Eacemi axil- 

 lares, 1-2-florati, 2 cm. longi, gi'aciles, basi vaginati, vaginis 1-2 mm. longis, 

 basi pedicellorum 1-bracteati, bracteis ovatis aciuninatis 3 mm. longis 1^ mm. 

 latis, pedicellis cum ovario 2-3 mm. longis. Sepala insequalia, posticum ob- 

 longo-angustatum 3 mm. longum IJ mm. latum apice obtusum basi non coutract- 

 um, 3-nervium, lateralia basi pede columns adnata basi valde obliqua 3-nervia, 

 3 mm. longa. Petala minutissima, linearia, 1^- mm. longa, 1-nervia. Labellum 1| 

 mm. longum, J mm. latum, basi erectum interiore recurvum, medio sm'sum ab- 



