ONCIDIUM. 



ORCHIDES. 757 



Folia angusla, plana. Racemi simplices , radicales, pedunculo saepius 

 squamis arcle imbricato. Flores speciosi, lutei, vel purpurei. 



The short column separates this genus from Oncidium and Odonioglossum; its 



auricles from Brassia. Its habit is peculiar. The seclion B bcars the same relaiion 



to Miltonia as ihe §. Tiymeuium to Odonioglossum. 



Subdivisions of Ihe genus. 

 g. A. Column with two auriclcs; aniher-bed naked. 1. spectabilis. 2. Karwinskii Ld\. 

 (cf. Odontoglossum). 3. Clowesii Lindl. 4. Hnsselliana Lindl. 5. Regnellii Rchb. 

 6. flavesccns Lindl. 



S- B. Column wings biended with ihe cucullate membranous raised edge of the 

 anlher-bed. 7. anceps Ldl. 8. cuneata Ldl. 9. candida Ldl. 

 Rchb. ni. Xen. I. p. 128. Ciavis generis : 

 Bracteae spaihaceae ovario pedicellato aequalcs seu longiores. 

 Labellum gynoslemio adnalum. Wulliflora. (Labelium pandu- 



ralum acutum undulatum lineolis velulinis.) flavoscens Lindl. 



Labelium liberrimura. Unillorae. 

 Labellum panduroto obovatum. Vaginae pedunculi imbri- 



cantes aiato carinatae spcctabilis Lindl. 



Labellum liguiato panduratum acutum. Vaginae pedunculi 



distanics exalato carinatae anceps Lindl. 



Bracteae ovario pedicellato manifeste hreviores, 

 Labellum plannm , basi cristato carinalum , gynosiemiuin non 

 involvens. 

 liberum, pandurato obovatum tricarinatum. Gynostemii alae 



apice ialcaiae . . . • negnellii Rchb. fil. 



liberum panduraium, noveracaririatum. Gynosiemii auriculae 



minutae Clowesii Lindl. 



basi cum gynostemio conspicue connatura sessile ligulato 



panduratum ; carinae seplem Busselliana Lindl. 



Labellum basi cuneatum in laminam obovatam; carinae duae cnneata Liridl, 

 „ orbiculatum basi cristalo carinalum undulatum circa 



gynosieraium convoluium candida Lindl. 



,, ovatum planum nudum Warsccwiczii Rchb. fil, 



Obs. Nitidissima generis adest monographia ab ill. Lindley confecta: cf. „FoIia 

 Orchidacea" V* 1853. — III. Lindley tamen ansam posuit in androclinio nudo seu mar- 

 ginato. Nos contra in Millonia speclabiH Lindl. ac Russelliann Lindl. observavimus 

 hos characleres omnino inconstantes, unde aliam ansam quaesivimus et jia quidem, 

 ut licet artificialiltus characteribus disianies, species similes consociatae fuerint. 



A. Bracleae spathaceae ovario pedicellalo aequales seu longiores. 

 Ilchb. fil. 1. c. 129. 



a. Mullinora labello adnato. 



116. - 1. - O.NCmiU.M FLAVESCENS Rchb. fil. Mss. Huc: .MUtonia flavescens Lindl. 

 Rchb. fil. I. c. 12'J: 



Pseudobulbus oblongoligulalus anceps diphyllus. Folia ligulata acuia. Basis bulbi 

 vnginis dislichis foliisque stipala. Pedunculi pars inferior anceps vagiuis arclis ves- 

 tila; pars superior oblusangulo flexuosa. Bracieac scariosac spalhaceac acumiuatae 

 palulae llores acquanies excedentesve. Sepala ac lepala sublaliora ligulala acula. La- 

 bellum infra basin gynostemii adnatum panduratum acutura seu oblongum aculum a 

 basi lato cuneata, margine undulalum ac minuie crenulaium lineolis velutinis; linea 

 antice bicruris nunc a denie prosiliens in ima basi. Gynostemii tobula a labello .?emi- 



