1132 ONCIDIUM 



late: scape very slender, 6-7 in. long, bearing 2-5 fls., 

 each IK in. across: dorsal sepals and petals subequal, 

 lanceolate, pale yellow, blotched with purple-brown; 

 lateral sepals larger, united half-way; labellum large, 

 sulfur-yellow, with a blackish purple callus; lateral 

 lobes small, triangular; middle lobe round-tan-shaped, 

 membranous and undulate. Jan., Feb. Organ Mts., 

 Brazil. B.M. 0494. 



18. c6ncolOT, Hook. (O. unguicnlAtum, Klotzsch). 

 Pseudobulbs small, oval-oblong, slightly furrowed: Ivs. 

 lanceolate: fls. 1-2 in. in ili;iiii.. rii-h yellow, borne ou 

 pendulous racemes 1-2 ft. lon^': latcrai l.ibes united for 

 half their length, smallir ilian tlic .|..rsal sepals and 

 petals, which are obovatc: lal.fllinti Twice as long as 

 the sepals, broad, flat, bil'.li.'l. with 12 reddish ridges 

 running down on the ba^e. Aiiril--lnn"'. Organ Mts. 

 B.M. 3752. I.H. 30:487. H. H. 1 >>1 ;:;ii. (in. ]:!:ni.-A 

 plant of close and comjiai-r haliir. Hiaking one of the 

 most attractive yellow cikiIIi.him- c.rclii.N. 



A. Labellum with a large reni- 



fnrm mid- lobe: la fern I 

 lobes small ornone. 



B. Petals much broader than the 



sepals IH. ampliatum 



20. excavatum 

 BB. Petals afid sepalu marl// of 



the 



c. Ft 



CC. Fls. medium-sised, numer- 

 ous, in long, climbing pan - 



leles. 

 D. ,SV/)a?.s and petals liuear- 



EE. /•'/ 



purple 



iucurvum 



, ,-, xl ../ N. r, ml iuterrupted 



:"i'i'^ 24. Baueri 



FK. r../„,»„ »■,„,,. rounded, 



sin/hihi ininihite 25. altissimum 



FFF. Cut II inn irinijs erose, sphace- 

 late 20. sphacelatum 



PFFF. Column, wings falcate, den- 



lull- 27. reflexum 



MkS.ihiIs Itlnfinldtr: pvtals 



xiiniuhiir 2K. Batemannianum 



DUII. N./"//x ,/)/,/ i„l,lls Iniriir h' 



E. c.lnroi hih.iiniii jit Ih.ii- . . . rlw. Harrisonianum 

 EE. ('"Inr ::f hiin Ihiiii iflnt, liii. leucochilum 



.s-o than the lateral lobe.i. 



B. Fls. rose-colored :il. ornithorhynchum 



BB. Fls. ye Ho IV, various 1 1/ 

 marked and spotted. 

 c. Crest pulvinate, pubescent . ..fl. divaricatum 

 'SA. pulTinatum 

 CC. Crest not ptilvinate. 

 D. Apex of labellum deeply 



Globed 34. Warneri 



DD. Apex of labellum apiculate, 



lateral lobes tooth-like 35. maculatum 



DDD. Apex of labellum merely 

 emarginate, lateral lobes 

 large. 

 Ji. Middle lobe broadly' reni- 



form, clawed 36. Limminghii 



EE. Middle lobe not clawed, sepa- 

 rated from the lateral lobes 

 merely by a sharp constric- 

 tion 37. cheirophortun 



19. ampli&tum, Lindl. Pseudobulbs subrotund, com- 

 pressed, bright green with purple spots, becoming 

 blackish purple and wrinkled with age: Ivs. plane, ob. 



ONCIDIUM 



long-lanceolate, 9 in. long: inflorescence a large panicle 

 1-3 ft. long, with numerous fls., which are yellow, spotted 

 with red at the bases of the segments; sepals and 

 petals small, the former entirely free; labellum reni- 

 forni, spreading, wavy, 1% in. across, narrow at the 

 base, with two small lateral lobes and a prominent lobed 

 crest. March-May. Throughout the coast of Nicaragua. 

 B.R. 20:1699. — The flowers are produced in magnificent 

 panicles. In var. m&jus, Hort.. they are half again as 

 large as in the type. P.S. 20:2140. G.C. III. 17:173. 

 Gn. 45, p. 491. G.M. 37:47.5. 



^W, 



1525. Oncidiuir 1 



20. excavatum, 1 

 Warsz.i. Pseudol 

 Ivs. IHft. long. If 

 long, with numei 

 with brown : sepal 



luu 



-^ 



spotted 



1 llcng 



u ridt,ts 



L ui U r suit 



Peru B M 



as man} as 



21. tigrinum, LaLlave & Lex. (O. Bdrkeri, Lindl. 

 O. iiniiiiinilatnm. Lindl.). Pig. 1525. Pseudobulbs 

 oval, loinpressed. 2-lvd.: Ivs. oblong-lanceolate, thick. 

 1 ft. lung: panicle erect, stout, 3 ft. high : fls. 2% in. 

 across; sepals and petals similar, lanceolate, undulate, 

 rich reddish brown, with few bars and spots of yellow ; 

 labellum yellow, with a very large, orbicular-reniforni 

 blade supported on a Iciii; "elaw. lat.i-ral I. .lies oljloiig. 

 Winter. Mex. LIT. 1 ;:. 'JJ -"Jl I'^I. 1 I 'iT i;,TMSS!i. 

 p. 176. — Very mufli !'■ •' ', ' ' - i...i, ,11, ii 

 liilfers by the louL'-i r . :,■ ,;i .Ink 



keel, and the obloiiu ,,.;^ i - ..i : i,. i , I;,,ili 



Var. grandiflorum, 11 "it.. i>. udverti.sed. 



2J. spl^ndidum, A. Riih. Pseudobulbs .small, round, 

 (•..ni|'r'~^c.l. liv.l.: h ■^. l.-athery, oblong-ovate. 6-12 in. 



Si.riiiL-. liuat.niala and Mex. B.M..587Sas ((). tii/ri- 

 H»w. var. splindidiim). P.S. 18:1825. Gn. 51:1121. 

 K.B. 17:108. G.C. 1871:42; III. 3:108. 



2:). incurvum. Barker. Pseudobulbs ovate, compressed 

 and ribbed, 2 in. long: Ivs. 9 in. long, ensiform. acute: 

 panicle 2-3 ft. long, slender, much branched and grace- 

 fully arched: fls. 1% in. across, numerous; sepals and 

 petals linear-lanceolate, undulate, white, banded with 

 purple ; labellum white, with a purple blotch ; lateral 

 lobes rotund, small; middle lobe .subreniform, concave. 

 Bears numerous panicles in autumn. Mex. B.M. 4824. 

 B.R. 31:64. I.H. 2:49; 29:444 (white variety). 



24. Baieri, Lindl. (O. altissimum, Lindl.). P.seudo- 

 bulbs oblong, compressed: Ivs. ensiform, rigid, keeled: 

 panicle with numerous branches and rather dingy fls. : 

 sepals and petals about as long as the labellum, linear- 

 lanceolate, undulate, yellow, with red spots ; labellum 

 with 2 spreading lateral lobes and a reniform emargi- 

 nate mid -lobe, yellow, with a reddish band. Trop. Amer. 

 B.R. 19:1651 (as O. altissimum). -A gigantic epiphyte 



