ONCIDIUM, 



ORCHIDES. 739 



Lindl. ex Doi. l\eg.: 



Pseiidobulbis ovalibus compressis diphyllis, foliis anguslis canalicii- 

 lalis recurvis scapo apice paniculato flexuoso quadruplo brevioribus, 

 sepab's aculis supremo fornicalo, lateralibus semiconnatis divaricalis, 

 pelalis obovalis rellexis, labelli laciniis laleraiii)ns brevibus anguslis ob- 

 lusis intermedia Iransversa angulata biloba, crisla luberculosa, colLun- 

 nae alis 4 subaequalibus rolundalis. 



Crazil. Yon Martius. u,uj-,-(i 



A small species very near 0. flexuosum. •v!.4 : \.,! 



Sert. Orch. 48: Inhabils elevated open pl.aces «n ihe Scrra de' Gran Mogol. 



81. ONCIDIUM FLEXUOSUM Sims in B. M. t. 2203. LO. ip. 199. L. F. p. 25. 



Flowers brighi yellow wiih clear brown spots , in a lavge branchiiig panicle, It 

 varies much in ihe size of the flowers, and also in the condition of ihe crest, whicii 

 is. however , always cushion-shaped and downy or pulveruient at the base. In Iront 

 of ihe cushion are eorociimes three small ridges, in other cases four lecih are inter- 

 posed between ihem and the cusliion; in oihers thero are a few ofl-lying waris. I 

 have ncver melh with ibe ridges fingered as represented in tlie „Bot. Mng." 



Wild iti Brazil-Micrs , 3479. etc. 



Oncidiuin fle.tuomm Lodil. ^. citrinum Rgl. Index Semin. Pdrop. 1^05. 



Lobellum suljihurcum immaculatum. Cetera ut genuini. 



82. ONCIDIUM H.AEMATOXAlNTHUM Rchb. fll. in litt. L. F. p. 25: 



Under this name I have from Prof. Rchb. a sketch of the flowers of a species 



said to be near 0. flexuosum , but by no means the same. The flowers seem lo be 



ihe size of 0. isopleruni , but the middle lobe of the lip is almost sessile; ihe base 



„purplish wiih yello\¥ calli." 



82 b. O.NCIDIUM ECllLNATUM II. R. Kth. N. Cen. et Sp. l 3445. 79. IIuc : Erycina echi- 



nata Lindl. Fol. I. Jan. 6. 1853 ; 



Sepala subherbacea, aequalia patenLia, lateralibus basi connalis. Pe- 



tala omnino conformia. Labellum maximum, petaloideum, tripartitum, 



circa columnae basin adnatum ; laciniis aequalibus , auricula carnosa 



inter columnam sinumque utrumque; basi appendice bilingui auctum. 



Columna nana, semiteies, bracbio carnoso (staminodiis) utrinque; roslello 



elongato sigmoideo. Pollinia 2, subrotunda, poslice excavata; caudicula 



lineari subulata ; glandula ovali. Anthera membranacea , unilocularis, 



longe roslrata. Ilerba epiphyla, Americae tropicae, ebulbis. Folia pauca, 



radicalia , disticha , coriacea , acuta. Panicula terminahs , racemosa; 



bracteis squarrosis, amplexicaulibus. Ovaria ramentaceo-echinata. 



Excellent specim^^ns of this exiremely rare plant, wiih which I havc been favoured 

 by M. Galeotii, show, what has long hcen suspecled, ihat il is noi an Uncidium ; from 

 whi<h genus it is separated by its dwarf column , long sigmoid rosleHiim . oncl ihe 

 very laige flesby columii-arms, which evidenlly represent tlie lateral inncr aboriivc 

 siaininn of Zygosiales , and tbe two nrms of Leocliilus. It differs IVuiii the formcr 

 genus in ihe column-arms not being free , in its large peculiar lip , and iis minule 

 pelals; froin Leochilus in its long sigmoid rostellum , and pcculiar lip , and froiii Or- 

 nilbocephalus, lo which it approaches, in thc rcmarkalde aims of tlic colunin , aiid 

 iwo polleumasses insiead of four. Thc lip hns ihe followiiig unusual siructure ; il 

 grows r.early round ihe column, and adheres lo all tliat it sunounds; at the base 

 nexi llir; column stands on ciilier sidc a liltle fleshy ear , wliich arises from wilhin 

 ihe edgc of ihe lip , and a similar. but smaller , oar is produced wilhin and above 

 each anterior sinus of the lip. The analogy of these intermcdiate ears is not obvious. 

 Ericijnu echinala Lindl. F. p. 1 : 



The flgure in H. B. K. is lolerahly characlerislic. as a gcncial rcprcstntaiion. My 

 specimens are obout nine inclios high , with lcav«s like ihose of Iono]tsis ulricula- 



93* 



