ONCIDIUM. 



ORCHIDES. 723 



47, ONCIDIUM BAHBATUM L. 0. p. 200, Coll. Bot. t. 27. F. p. 16: 



(A.) verum. SepaU aud petals cinnamon-brown. Middle lobo of lip very short 

 and eraarginate. 



0. microglossnm Klotzsch in Allg. Gartenztg. 1855. p. 234. 

 (B). ciliatum. Sepais and petals cinnamoa-brown. Middle lobe of lip apiculate 

 and as Inrge ns ihe side ones. 



0. cilialum LO. p. 200. B. R. t. 1660. 

 0. ciliatuhim Hoffmgg. in Bot. Z. I. 834. 

 (C.) limbatum. Sepals and petals cinnaraon-brown , spoited , with a clear yellow 

 border. Centre of ihe lip very large, circular, and bright yellow. 



(D.) fimbriatum. Sepals and petals dull brown. Middle lobe of lip larger than 

 the laterals. 



0. fimbriatnm HfTmgg. 1. c. 

 0. cUiolalum Id. ? 

 0. subcilialum Id. ? 

 With ihe assistance of Trof. Reichenbach I have been able lo sellle on a more 

 satisfactory basis the limits of ihis diftUult speoies. It is evident thai it varies much 

 in th€ magnitutie and form of the niiddle lobe of ihe lip ; and thai (he 0. cilialum 

 of ihe ,.G. et Sp. 0." is noihing more, than a variety of ihe 0. barbatum figured by 

 Sir W. Hooker, in the ,,Collecianea Botanica.' Bctb have the five-lobed crest so 

 common in the order, with an outlying tooth or two. Tlie 0. barbatum of ,,Paxt. FI. 

 Garden" is quile dislinct, and has just been mentioned under 0. trichodes. The va- 

 rieties C and D, of which I have only seen single Howers kindly sent me hy Mr. Kchb. 

 require furlher examination , particularly C, especially as regards ihe condition of 

 their crest. Copies of Ilffgg.'s drawings , from the same invaluable 'correspondent. 

 are my authoriiy for the synonyms under D. 



Wild in Tropical America; A. Brazil— Gardner, Swainson; B. Brazil— Hoffmannsegg. 

 Luschnoth; C. Guatemala— Rchb. f. in litt. ; D. Brazil— Hoffragg. 



Lindl. B. Reg. XXIV. (1838.) sub 48: Common in the woods', wbich cover the 

 low plains among the hills near Gananal. Brazil. Descourtilz. 

 Klolzsch in Berl. Allg. Gtz. 1855. p. 233: Oncidium microglossum : 

 rseudobiilbis suboibiculaiibus cornpiessis ulrinque unicostatis mo- 

 nophyllis; foiiis ligulalis connplicalis subcoriaceis rotundato-eniarginatis 

 leviter carinatis, basi allenuatis; scapo erecto paucifloro; bracteis ovatis 

 aculis carinatis brevissimis; floribus flavis fusco-maculatis longipedicel- 

 latis; perigonii foliolis obovatis unguiculatis crispato-undulalis , interi- 

 oribus latioribus, exterioribus lateralibus semiconnatis ; labello inaequa- 

 liter tripartito , lobo medio minimo oblongo ligulato luteo subaculo, 

 laleralibus magnis luteis patentibus brevi-obovalis obliquis, margine 

 subundulato-crenalis sinubus suis anterioribus rotundalis fimbrialis, 

 crista maculala mullituberculato-cornuta ; columnae alis latis emarginato- 

 Iruncatis. 



48. ONCIDIUM MICROPOGON Rcbb. Bonpl. Ap. L 1854. Xen. ined. Lindl. F. I. c. p. 16 : 

 (A.) Flowers spotted wiih brown. 



0. denlalum Kloizsch in Allg. Garienztg. 1855. p. 234. 

 (B.) chrysojderum Rchb. fll. Flowers all yellow. 



0. macropelalum Klotzsch in Allg. Garlenz. Sept. I, 1655, 



Wild in 



Ceriainly different frora Ihe preccding in ils lorger flowers , with the lateral sepals 

 united fully half their lenglh, and in ihe large flat obiuse pelals, approaching in form 

 ihose of 0. mscropetalum. For thc synonyms I am indehtcd to Prof. Rchb. I have 

 not seen a wiid specimen. 



91* 



