118 MR. H. N. RIDLEY ON THE 



BULBOPHYLLUM (sect. BULBOPIIYLLARI a) OPHIUCHUS, n. Sp. 



Rhizoma crassum, vaginis pallidis membranaceis tectum ; pseudo- 

 bulbiia augiistus eloiigatus paruin incrassatus biuncialij^, vaginis2 

 membranaceis palliJis amplis tectus. Folia circiter 4, lanceo- 

 lata obtusa coriacea, apice vix biloba uncias longa .f uiicise lata ; 

 scapus elatus 16 uncias longus, yagiuis 6 dissitis inembranaceia 

 punctulatis laxis 1| uncias longis ; racemus densus erectus multi- 

 florus S-uncialia, rliachidc carnosula ; floras parvi virides (siccati 

 rubeseentes) ; bractea^ OA'ata? obtusa?, floribus vix sequnntes ; eepa; 

 lum j)osticum lanceolatum augustuni, lateralia connata carnosula 

 OA^ata ; petala liuearia spatliulata papillosa abrupte rccurva ; 

 labellum breve, lamina ovata hastata obtusa carnosa rugosula, 

 subtus quasi complicata quam sepala multo brevior, unguis 

 angustus linearis ; columna brevissima, bracliia brevia incurva, 

 rostellum breve obtu^um ; anthera coniplanata biloculata, loculis 

 yalde discretis. 



Ankeramadinka, Flowers green, turning red on fading. 

 Dr. Fox ; Baron no. 4408. 



Tin's is the first recorded Madagascar species of tlie section 

 BtdhophylJaria^y^'hioh. is characterized by the lateral sepals being 

 connate into a someAvhat fleshy ovate body. The petals are 

 narrow and flat, wdth tbe ends a little broadened, covered Avith 

 small Avarts, and folded back on themselves. They are apparently 

 darker than the rest of the flower. 



BuLBOPUYLLUM GB AGILE, TJiotiars, OrcJi. lies Afr. t. 101. 



Ehizoma lignosum ; pseudobulbi dissiti oblongi conici 1| uncias 

 longi, vagina albescente, pseudobulbum et scapi basin tegente ; 

 folia anguste ligulata spathulata obtusa 3-5 uncias longa, 

 vix \ uncisB lata; scapus erectus vix pedalis validulus teres, 

 parte inferiore vaginis paucis laxis dissitis, superiore laxe 

 racemosa ; bractese parvse quam OA^aria breviores ovatse lauceo- 

 latseacutse; flores subsessiles ; ovaria brevia conica ; sepala ovata 

 subacuta, lateralia breviter connata ; petala multo breviora lan- 

 ceolata lorata recta obtusa; labellum breve integrum oblongum 

 subacutum abrugte convolutum carnosulum, lineis medianis 

 tribus ; columna alis latis, dentibus minimis obscuris ; capsula 

 ovata globosa 3 uncise longa. 



Central Madagascar, Baron no. 4129. Ins. Mascarenenses, Sir 



•71 Macfjregor. 



I believe this to be the plant intended by Thouars's figure. It 



is closely allied to B. ophiuchxii^ mihi. 



