ONCIDIUM. 



ORCHIDES. 753 



apice dilalato Lasi denle porrecto subsimplici tjubluberculato auclo, 

 coiumnae alis minimis cunealis truncatis. 



A Cyrtochilum whh tlie yellow flowers of an Oncid, imported from Guatemaia by 

 Mr, Bateman. It has a very slender stem, above 2' long, perfectly simple, on the ex- 

 treme point of which are 4—5 flowers nbout the size of these of C. raaculatum. 

 C. Huc: Oncidium Wrayac Hook. Bot. Mag. 3854: 



Pseudobulbis ovalis compressis sulcatis, foliis 2 terminalibus lineari- 

 lanceolatis, scapo radicali elongalo ramoso, floribus paniculatis, petalis 

 sepalisque conformibus ovato-acuminalis patentibus ferrugineo-maculatis, 

 labello unicolori late cuneato-obovato trilobo cristato , crista elevata 

 acute triloba. 



Perigonium flavum. rubro-brunneo pictum. salvo labello croceo. 

 Mexico, collect. Oalifield near Chellham : Wray. 



Bot. Reg. XXVII, 1841. Misc. 57. This would seem new, but is evidently very 

 near 0. reflexum, Wentworthianum and Tayleurii. The fig. in Bot. Mag. by which 

 alone I know it, is evidently inaccurate in these minute, but important details, a cor- 

 rect knowledge of which is indispensable in this large and difficult genus , that it is 

 not easy to place any conflance in it. 



iU. ONCIDIUM BRACHYANDRUM Lindl. Sert. Orch. sub t. 25. L. F. p. 33: 



The leaves etc. are unknown. Of my two specimens , one is one-flowered , the 

 other two-flowered. The laieral sepals are so close at Ihe base, as to give ihe flowers 

 the appearance of being telrapetalous. ^ 



Wild in Mexico— Knrwinski ; St. Jago el Grande, Oaxaca— Grisebach, 26. 



Huc: Oncidium brachyandrum Lindl. Sert. I. c. (1839): 



Pseudobiilbis foliis q scapo tenui sub-bifloro, sepalis lineari- 



lanceolatis undulatis acuminatis, lateralibus basi conliguis, petalis latiori- 

 bus conformibus, labello obovato membranaceo emarginato convexo, tu- 

 berculis binis parallelis extrorsum sinuatis, columna nana crassa lon- 

 gioribus, alis piirvis truncalo triangularibus. 



Mexico, prope St. Jago ei grande, Oaxaca. Karwinski. 



112. ONCrDlUM LUNATUM Lindl. in Bot. Reg. t. 1929. Paxt. Fi. G.. IL ic. 122. L.F.33: 

 The figure in ihe „Bot. Reg." represents ihe base of the lip as provided with a 

 pair of inllexed teeih. This is a mistake of the arlist. It is really a thin circular 

 downy membrane. curved inwards over ihe central ridge. Prof. Reichenbach sug- 

 gests to me that this may be nearer Solenidium, than the present genus, It does not. 

 however, appear to me anytbing more than a somewhat anomalous form of Oncidium. 

 The lacerated membrane at ihe back of ihe anther-bed has its parallel in 0. omplia- 

 tum, and the uneven number of lobes of the crest, so cbaracteristic of Oncidium is 

 made up by ilie presence of a tooth at the base of the lip, overlooked in the ,,B. R." 

 The most remarkable features consist in ihe presence of a broad wedge-shaped re- 

 curved peak to ihe anlher. and in ihe abscncc of ihe buccae or checeks , which be- 

 long to ihe colurnn of true Oncidia. I add a few memoranda , made upon re-exa- 

 mining a dried flowcr. Sep. lat. b.isi ima connatn. Labellum basi auriculis circula- 

 ribus indivisis incurvis; crista ante columnnm dente aucia. Columna semiieres. sur- 

 sum angustior; buccis nullis; alis dimidiato-ovatis membranaceis aculis. Clinandrium 

 dorso in membranam ovatam dcntatam productum. Siigma circulare , prominens. 

 Anihera unilocularls, apice membranacea elongata cuneata refracta. PoIIinia ctc, 

 Oncidii. 



Wild in Demerara— Loddiges. 



Huc: Onciditim lunalum LindL I. c. XXill. (1837.) sub 1920. et tab. 1929: 

 Pseudobulbis compressis 1 — 2 phyllis. foliis anguste oblongis planis 

 oblusis scapo brevioribus , scapo racemoso; sepalis petalisque spatliu- 



