46 ORCHIDS.*:. 



5-10 flavescentes 1 cm. in longo cliametro laxe umbellati rhacliibus 2 mm. 

 longis, pedicellis gracilibus 9-10 mm. longis basi 1-bracteatis, bracteis fusco- 

 purpurascentibus 3 mm. longis. Sepala valde insequalia, posticnm liberum 

 minus rubro-purpurascens ovato-quadrangulare 3^ mm. longum basi 2^ mm. 

 latum 3-nervium basi latissinium leviter contractum apice obtusum lateralia 

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

 flava nervis mbescentibus, apice obtusa basi plus minus obliqua basi 

 columns pede adnata mentum 2 mm. longum formantia supra basin introrse 

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

 maculata. Petala breviora quam sepalo postico oblonga 3 mm. longa If 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 mm. longa apice (clinandiium) 

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

 lineari complanato) apice abrupte incurvis dilatatis. Anthera globosa, -} 

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

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

 triquetra facie leviter 1-costata. Cirrhopctcdum flavisepalum HAYATA Herb. 

 Taihoku. 



HAB. Mt. 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 (Fig. 18) Ic. PI. Formos. H 

 p. 132. Epiphyta, caulibus gracillimis prostratis ad nodos radicantibus, 

 teretibus | mm. in diametro sectionis, intemodiis 1-2 cm. longis, ad nodos 

 vaginatis, vaginis 3 mm. longis ore truncatis. Folia subsessilia crassa elliptica 

 vel elongato-elliptica 22 mm. longa 9 mm. lata apice rotundata mucronata vel 

 emarginata basi plus minus contracta ad petiolum 1-2 mm- longum abeuntia 

 nmltinervia. Kacemi axillares 1-2-florati 2 cm. longi graciles basi vaginati 

 vaginis 1-2 mm. longis, basi pedicellorum 1-bracteati, bracteis ovatis acumi- 



