132 OKCHIDFJE. 



latum, 3-nervium, basi latissimum leviter coiitractum, apice obtusum, lateral iu 

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

 flava, iiervis mbescentibus, apice obtusa, basi plus minus obliqua, b;oi 

 columns pedi adnata mentum 2 mm. longum formantia, supra basin iii- 

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

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

 lata, apice rotundata, 3-nervia fusco-purpurascentia, leviter reflexa vel concava. 

 Labellum brevius mentum in longitudine sequans basi erectum a medio sursum 

 valde extrorse recurvum, crassiusculum, margine erectum apice obtusum acutum 

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

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

 latere bicornuta, basi in pedem 2 mm. longum producta, (pede interiore recurvo 

 linear! complanato) apice abrupte incurvis dilatatis. Anthera globosa, 

 mm. in diametro. Pollinia 4 ; 2 majora, 2 minora. Capsula prematura 

 cyliiidrico-fusiformis, 2 cm. longa 5 mm. lata, apice obtusa, basi attenuate 

 triquetra, facie leviter 1-costata. 



HAD. M. Arisan, prope Taroyen, leg. B. HAYATA et S. SASAKI, Jan., 1912. 



The orcliid 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. nov. Epiphytica, caulibus 

 gracilHmis prostratis ad nodos radicaritibus, teretibus f mm. in diarnetro sectionis, 

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

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

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

 contracta ad petiolum 1-2 mm. longum abeuntia, multinervia. Ilacemi axil- 

 lares, 1-2-florati, 2 cm. loiigi, graciles, basi vaginati, vaginis 1-2 mm. longis, 

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

 latis, pedicellis cum ovario 2-3 mm. longis. Sepala insequalia, posticum o\>- 

 longo-angustatum 3 mm. longum l- mm. latum apice obtusum basi non coiitract- 

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

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

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



