ONCIDIUM. 



ORCHIDES. 731 



shaped. curled at ihe margins, twolobcd, of a brighi yellow colour, lliickly spoilcd 

 on the lower niargin wiih purple brown. 



§. 6. Tetrapetala micropetala. Lindl. I. c. 

 Analysis of tlie species. 



Labellum indivisum 



ovalum emarginatum 65. concolov. 



obovatum acutum 66. cochleatum. 



cuneatum roiundatum ; alis c. maximis laceris 67. aurcHin. 



Labellum panduratnm. 



scapus uniflorus 68. decipiens. 



„ racemosus v. paniculatus. 

 Crista paucituberculaia (verrucis segregatis o). 

 clinandrinm cucullatum vel manifeste marginatum. 



crista ecornuta parva 69. cucullatum. 



,, bicornis 70. pubes. 



clinandrium immarginatum. 



crista unicornis 71. unicome. 



„ mutica. 



Lab. lob. med. lin. spath. acutus ,72. incurvum. 



,, „ „ reniformis. 



Racemus simplex; crisla utrinque digitata .... 73. bifolium. 

 Panicula , 



ramosa dilTusa cristae dentibus 5 74. Marlianum. 



angusta racemosa crist. papill. acervatis ..... 75. maculosum. 

 Crista verruciiuberculata (dentibus aliquot segregatis). 

 Flores raoemosi. 



sepalis lateralibus basi tantum connatis 76. Blancheti. 



„ „ semiconnatis 77. viperimm. 



Flores paniculnli. 



crisla simplici convexa anticc iridentata 78. disciferum. 



multiplici. 



Labellli lobus medius scssilis qundrilobus 79. varicosum. 



„ „ „ unguiculatus. 



C. alis rolundatis, crista muliiflda 80. isopterum. 



„ ovatis fornicatis, crisia basi convesa pulverea 81. flexuosum. 



82. haemaloxanthum. 



65. OXCIDIUM CONCOLOR Ilooker in Dot. Mag. t. 3752. L. F. p. 21.: 



Cyrlochilum citrinum llookcr in D. M. l. 4454. 



Oncid. unfjuiculalum Klolzsch in Allg. Gartenz. XVII. 91. 

 Tliis is one of ilio bandsomesl of ihc genus , on account of its large ricli whole- 

 coloured yellow llowers , by wbicli and its ovate reluse lip it is immediately re- 

 cognised. Ils origin is doubiful. On the authority of the VVoburn collection Sir W. 

 Ilooker reportcd it to have becn found on tbe Orgaii Mountains by Gardner ; at a 

 later period Central America was given to it upon ihe assurance of Mrs. La\vrence's 

 gardener. Neither source of informaiion is trustworlliy. I linvo secn nothiiig hke 

 it in tbe multiiudes of wiid specimens tbat have passed undor my obsei vatioa. In a 



92* 



