ODONTOGLOSSUM. 



ORCHIDES. 841 



56. ODONTOGLOSSUM ANGUSTATUM Lindl. in Rot. Reg. sub t. 1992. L. F. Nr. 48 : 



0. psendohulbis compressis , foliis longis lato-lanceolatis erectis 

 scapo gracili brevioribus, panicula flexili, bracleis carinatis cuculiatis 

 acutis internodiis duplo brevioribus, sepalis linearibus acun:iinatissimis 

 lateralibus unguiculatis, petalis latioribus et brevionbus, labelio ovato- 

 lanceolato acuminato basi angustato, cristae lamellis lateralibus membra- 

 naceis tridentatis glabris intermedia triplici filiformi tomenlosa apice in 

 callum et cornua 2 lateraiia expansa in appendicem bicornem pariter 

 tomentosum supposilum incumbentia, columna elongata aptera. 



Wild in Peru; in the valley of Lloa. at the height of 8000 feet— Hall; in the woods 

 of Guayan, on ihe western declivity of Pichincha— Hartweg. 



A mucb more slender plant than the preceding. Sepals one inch and a half long 

 and scarcely more ihan a line broad. The flowers appear to be spotted. The mera- 

 branous smooth-toothed side lobes of the crest of the lip and the long downy horns 

 which terminate it aie remarkable. 



57. ODONTOGLOSSUM PARDINUM Lindl. in Sert. Orch. sub t. 25. L. F. Nr. 49: 



0. foliis liDeari-oblongis basi angustalis striatis scapo slricto laxe 

 paniculato subaequalibus, bracteis membranaceis cucullatis acutissimis, 

 petalis undulatis sepalisque angustioribus lanceolatis, labello unguicu- 

 lato ovato-lanceolato acuminato, cristae pubescentis lamellis lateralibus 

 basi dentatis apice 3-partitis intermedia elevata in fronte adjectis callis 

 quibusdam terelibus, columna aptera. 



Wild in Peru; on the ground near Surucucho— Jamieson; the Andes of Popayan— 

 Hartweg. 



Flowers handsome , yellow, spotted with brown in the original form sent to Sir 

 William Hooker by Professor Jamieson. The Popayan planl is somewhat different; 

 the flowers are smalier and apparenlly not spotted; and ihe crest of tbe Jip is more 

 downy wiih a few more teeth in front. The two plants can hardly however be distinct. 

 I have from Professor Jamieson what appears to be identical with ihe Popayan form. 



58. ODO.NTOGLOSSUM WAGENERI Rchb. BI. in Bonpl. IL 12; 



Panicula brachyclada rariflora, bracteis membranaceis obtusis ovaria 

 crassa dimidio aequanlibus, floribus illos 0. revoluti subaequantibus, 

 sepalis cuneato unguiculatis paulo dilalatis lanceolatis acutis, summo 

 breviori, tepalis cuneato oblongis acutis sursum falcalis sessilibus lamina 

 sepali summi ter lalioribus, lahello a cuneala basi ovali lertio antico 

 proboscideo lineari reluso, callis aculiusculis subvelutinis quatuor bi- 

 seriatis in disco, qulnto -aequali in disco illis interposito, gynostemio 

 crasso aptero dimidium labellum aequante. 



Sepaia griin mit violeiten Flecken. Tepala violeit mit goldgelber Spitze. Lippe 



violett , Schwielen und Saum gelb. Saule unten grun , oben violett. Spitze gelb. 



Neben Od. revolututn Lindl,, das einen herzformigen Grund der Lippe und eine wei- 



tere Rispe besiizt. Caracas. 6000'. Mai. Wagener. 



59. ODONTOGLOSSUM SPATHACEUM L. F. Nr, 50: 



0. foliis oblongis basi condu[)licatis, scapo erecto dense paniculato, 

 bracteis oblongis spathaceis apiculatis internodiis longioribiis, sepahs 

 angustis acnminatis, petalis duplo latioiihus, labello ovato-lanceolato, 

 cristae puhescentis lamellis lateralihus apice unidentatis et hicirrhosis 

 in appendicem hilobnm bifalcem longiorem suppositam incumbenlibus, 

 columna elongata aptera. 



Wild in New Grenada— Pnrdie. 



A noble plant , wiih Inrge panicles of spotted flowers, apparently yellow, with se- 

 pals an inch and a half long. The bracls are much larger and more spathaceous, 

 than ia the allied species. 



VI. 106 



