oNciDiuM. ORCHIDES. 721 



Huc : 0. adscendcns Lindl. D. Reg. XXVIII. 1842. sub 4 : 



Foliis ereclis junceis , scapo ^tricto paniculato aequalibus, sepalis 

 pelalisque obovalis oblusis concavis . labelli lobis lateralibiis nauis 

 ereclis intermedio reniformi emarginato, luberculo ovalo 7-denlato , co- 

 Jumnae alis linearibus integerrimis incurvis. 



Guatemaia. Has much the habit of 0. Ceboletta but the linear wings of the co- 

 Uimn, ihe smnll erect lateral lobes of ihe iip , and the manjtooihed tubercle distin- 

 guish it at once. 



43 b. ONCIDIUM SUPERFLUUM Rchb. ni. Mss. : 



Pusillum, pseudobulbis cylindraceis (compressis ?), folio tereli acu- 

 minato, racemo abbreviato, bracleis triangulis parvis, sepalo dorsali li- 

 gulalo fornicato, sepalis lateralibus obovatis retusis, tepalis paulo mino- 

 ribus . labello unguiculato , quadrato dilatato emarginalo , callo semi- 

 lunari in ungue, columna brevi, utrinque medio unidentata, anthera pro- 

 boscidea. ♦ 



Minas Geraes 778. Widgren! (Est „Leochiius"). 



§. 4. Tetrapetala barbata. 

 Analysis of Ihespecies. ^ 



.Scapi foliis suiiocciuales 

 paeudobulbis moncphyllis; peduncuio subunilloro , crista poly- 



dacl>la 44. uniflorum. 



pseudobuibis (liiihyliis ; peduiiculis 2— 5-floris, crista lomentosa Vj 45, longipes. 

 .Scapi elongati paniculati 



peiaiis .icuminaiis sepalisque undulatis conformibus 46. irichodcs. 



pctalis obtusis sepalis subaequalibus 



sepaiis basi connatis 47. barbatum. 



„ uitra medium coniiatis 48. micropogon. 



pcialis maxirais circularibus iabeiio subaequalibus 43. macropctaluni. 



44. ONCIDILM UNiFLOliUM Liiidi. B. R.^ 1843. t. 43. L. F. p. 15. (faisa aucloritaie „Ldi." 

 pro „Boolh". Rchb. fll.) 



This and the next are much alilie; but ihe cresl of ihis consists of an oblong 

 ciuster of numerous smali smooih fingers , and .ihe wings of the coiumn are conspi- 

 cuously iwo-lobed ; on ihe contrnry, in 0. iongipes the crest is downy , with four 

 biunt teeth standing some way behind three others which are larger , and the wings 

 of the column are rudimentary. Fiowers in both greenish . wiih a bright yellow lip. 



Wild in Brazii ; on trees in ihe Organ Mountains, in foresls— Gardner, 5873 and 640. 



Huc : Oncidium uniflorum Boolh in lill. B. R. I. c: 



Caespitosum , pseudobulbis angustis linearibus squamatis sulcatis 

 monophyUis, foliis linearilanceolatis obfusis undulatis apiculatis, scapo 

 unifloro folio mullo breviore, sepalis lateralibus basi connatis pelalisque 

 obovalo oblongis undulatis herbaceis, labello pandurato lobo intermedio 

 maximo emarginato laleralibus nanis rotundatis sinu fimbriato, crista 

 pubescenle polydactyla lacinia ufrinque iibera solitaria, columnae alis 

 truncalis erosis. 



Allied to the rarc Oncidium barbatum , inhabits trees in the forcsis of ihe Organ 

 Mountains of Brazil, where it was found in April 1811 by Mr. Gdrdner. 

 VL 91 



