ONCIDIUM. 



ORCHIDES. 797 



Rchl). fll. Xenia I. p. 94: 



Aff. Oncidio reflexo Lindl. Pseudobulbo foliisque caesiis, labelli lobis 



posticis quadratis relusis divaricatis abrupte ac rectangule in isthmurn 



angustum transeuntibus, lobo medio reniformi bilobo subduplo latiori ; 



callo baseos paucipapuloso anlrorsum bicruri, columnae alis dolabrifor- 



mibus opice obtuse acutis. 



Sqq. cilata. — Pseudobulbi ovati oblongi coinpressi utrinque mcdia linea costali: 

 diphyiJi; poliicem seu sesquipollicem longi , immaciilnli. Folia lineariiigulata erecto. 

 5—6 pollices longa, medio unum pollicem iata. Pedunculns gracilis erectus subpe- 

 daiis, apice quadriflorus , brunneus, viridistriatus macuiatusque paucivaginatus. 

 Bracteae iineares raembranaceae ovarii pedicellati quartam aequantes. Sepala et te- 

 pala cuneaio lanceolata acuta, margine nunc binc undulata. Sepalum summum prima 

 jara anlhesi. cetera sepala ac tepaia demum renexa. Labellum trilobum, lobi laterales 

 subquadrati obtusanguli et divaricati, lobus mediiis brevisaime angusteque unguicu- 

 Intus („isibmosus") in iaminam illis lobis subduplo latiorem quadraiam obiusangulam 

 apiee bilobam dilaiatus. Callus velutinus tumidus in basi , dorso convexus, a|)ice bi- 

 cruris cucullo interj>cto ac superposilo, papulis quibusdam laieralibus. Gynosiemium 

 6ubcurvatum; alae dolabriforraes , hinc crenulatae apice obtuse acutae, tabula infra- 

 stigmatica prominula, medio excavata , utrinque trapezoidea. Sepala ac tepala caesia 

 parce atropurpurpiireo guttata ; labellum citrinum. 



Gard. Chronicle 1854. 219: This is certainly a mere variety of Oncidium reDe.xum, 

 with leaves more glaucous, ihan usual, owing perhaps to bad cultvaliou. Such diffe- 

 rences as are pointed out in the figure and deseription, if sufficient to establish a 



, species, would lead to ihe subdivision oJ' every species of Oncidium yet known and 

 to a muUiplicaiion of names, which can only render a siibject], alreaily sutftcientiy 

 difficuli, altogether impenetrable. The plant has no horiicullural value. 



160. O^CIDIUM PIRAUENSE Rcbb. fll. in Linnaea, XXII. 816. Lindl. Fol. p. 46: 



Very difTerent from the species near it, except 0. sessile, in its large flowers wilh 

 broad blunlish spreadings, not reflexed scpals and petals. The crest, which is re- 

 markable, is described by Rchb. as a single callosity wilh three lobes, of which the 

 lateral are angular and obtuse, ihe middle one longer and emarginaie. 



Wild in Guiana; near Pirara— R. Schomburgk. 



Cf. Walp. Ann. III. 557. 



161. ONCIDIUM SUAVE Lindl., in Boi. Reg. 1843, raisc. 22. Paxt. FI. -G , II. ic. 133. 

 Lindl. Fol. p. 46: 



0. Wendlandianum Rchb. fil. in Donpl., Ap. I, 1S54. 

 0. tnacropterum A. Rich. et Galeott. Orch. Wex. 

 0. Tayleuri Ilort. 

 Its brown refiexed sepals and pctals, yellow lip with a broad cinnamon stain at 

 the base, rounded column- wings, and peculiarly straggling inllorescence mark thi&. 

 fiatisfactorily. In 0. Wendlandianum, frora tlie garden of llerrnhausen, for which, 

 I ara iridebied lo Prof. Rchb., the lcaves are longer and broader, ihan usiial. 0. ma-. 

 cropierum from Galeotii himsclf (no. 5046 bis), is also from Oaxaca, and no doubl 

 must be also referred to tliis place. 



Wiid in .Mexico— Schiede, Galcolti; near Oaxaca, at Teoxomulco, on Pinus Teo-. 

 cote— KarvvinsLi in hb. Monac, 

 Huc Lindl. I. c. XXIX : 



Pseudobulbis ovntis compressis ulrinque bicoslalis, foliis membra- 

 naceis lineari oblongis canabculalis acutissiinis, panicula elongala ra- 

 mosa, sepalis petalisque linearilanceolatis acutis unduialis revolutis, la- 

 belli lobis iatcralibus roLundatis intermedio tiansverso apiculato mino- 

 ribus, tuberculo pubescente anlice 5-lobo apice bidenlato, columnae 

 alis rotundatis denlicuialis. 



