500 ME. H. N. BIDLEY ON THE 



flowers. The bracts are as long as the ovaries, and, like them, 

 pubescent. The basal portion of the lip is dilated and somewhat 

 fleshy ; at the base are two short blunt down-curved processes, 

 between which runs a raised line. The terminal portion of the lip 

 is developed into a broad rounded tw r o-lobed deflexed lamina. The 

 pollen-gland is ovate, aud projects in front of and behind the 

 point of attachment of the pollinia, which are rather coarsely 

 granular. The ovary is 3 lines long, narrowed at the upper end. 



Ophrtdej;. 

 Bicobxella, Lindley. 

 This small genus seems to be endemic. It contains three 

 species. 



Folia radicalia brevia ; 



lobi laterales rostelli breves cornuti, curvi ; 



racemus compactus B. parviflora. 



lobi laterales rostelli elongati, porrecti ; 



racemus laxus B. gracilis. 



Folia elongata, caulis elatus B. longifolia- 



B. qhacilis, Lindley, Genera $ Species Orchid. PI. p. 334. 

 (Plate XV. figs. 1-4.) 



B. radicibus copiosis cylindricis ; canle erecto gracili pedali ; 

 foliis liuearibus acuminatis strictis, quam caulis multo brevi- 

 oribus ; racemo laxo multifloro, floribus parvis roseis ; bracteis 

 8aepius quam ovarium brevioribus ; petalis et sepalo postico con- 

 natis galeam cucullatam ovatam acutam efformantibus ; sepalis 

 lateralibus falcatis ovatis obtusis ; labello lobis lateralibus quam 

 processus rostelli haud longioribus, lobo medio lineari-lanceo- 

 lato angusto velutino ; calcare brevi, dimidio ovarii aequante, 

 pendulo, basi angustato vix clavato ; lobis rostelli lateralibus 

 elongatis linearibus spathulatis obtusis porrectis ; polliniia 

 minimis ; caudiculis capillaceis ; ovario saepius scabro. 



Madagascar, Lyall no. 30S ! Tsipelina, Parker ! Baron 

 no. 202! in Kerb. Kevo. Iu paludibus Ankafana, Imerina! 

 Beans Cowan. Sine loc, Hilsenberg and Bojer ! ; J. V. Thompson ! 

 in Herb. Brit. Mus. 



B. pakvifloba, n. sp. (Plate XV. figs. 5-9) ; radicibus 

 multis cylindricis ; foliis radicalibus paucis linearibus acuminatis 

 brevibus ; caule erecto gracili vix pedali ; floribus numerosis parvis 

 aggregatis roseis ; bracteis linearibus acuminatis, quam ovarium 



