rispatum, 



ODOXTOULOSSUM 



labellum expanded \n front. wliit*-, sliadi 



isli blotch at li;i-. . li.i'. II. J.:;!;. 



Reichb. f. Fr..iii h.-.ir wf 1 1,,. I:il»lli,,,, ,-,,i 



folds, firabriatc. ( ;.( '. Ill . ,^: j::::. .\oi ; 



Bc6ptrum, Reiclil.. f. S.-paU .-n ;,mi> \. 1|..-. . Iiiuivd and 



■washed with brown; petals lu-inli : i - i ;m I , d'-n.stdy 



spotted with brown ; labellurawliiii h. 111. I - . 7:;; :i7:99. 



Not advertised. Var.Hystrix, IImh " // ....Hurt.). 



Xjabellum much fringed, and crt-st- \ . i \ i hi} . 



9. faoStum, Reichb. f. {O. EdUii Limll. x O. luleo-pur- 

 pureitm, Lindl.). Natural hybrid. Sepals lanceolate, 

 straight, light yellow, with very large cinnamon-colored 

 blotches; petals lanceolate, straight, finely toothed.with 

 numerous small spots; labellum almost circular, short, 

 finely fringed, convolute, undulate, light yellow, with a 

 semi-circle of radiating keels, some of which are fringed 

 and in front of which is a horseshoe-shaped spot. 



10. Hebraicum, R.ichb. f. 10. crisfAhim, Lindl. xO. 

 cirrhdsum.huuU.}. Natural liyhrid. Fls. 2K in. across, 

 borne in a panick-; s<-|ials lanooolate; petals wider, un- 

 dulate, all prettily marked, lemon-yellow, whitish in the 

 center and spotted with red-brown markings suggesting 

 Hebrew characters ; labellum triangular or oblong, 

 acuminate, erose-dentate, darker yellow toward the 

 base, with a large maroon blotch and several smaller 

 ones. Winter. Colombia. Gn. 21:339. G.C. II. 16:173. 



— Var. aap6rBum, Rolfe. Differs slightly from the type 

 in its lax racemes of golden yellow fls., blotched with 

 purple-brown. 



11. maciil4tuin, La Llave. & Lex Pseudobulbs 

 ovate, 1-lvd.: Ivs. lanceolate, acute, 6-8 in. long: ra- 

 ceme pendulous, loosely mauy-fld., longer than the Its. : 

 sepals narrowly linear or lance-oblong, acuminate, 

 brown ; petals ovate-lanceolate, acuminate, undulate, 

 yellow, spotted with brown; labellum wide triangular, 

 acuminate, crisp, yellow, brown-spotted, claw short, 2- 

 crested: column white. Mexico. B.M. 6455 (not 4878, 

 which is O.cordatum, Lindl.). B.R. 26:30. -Fls. freely 

 in June. Racemes a foot long, with stellate fls. 3 in. in 

 diameter. Var. splfindens and var. supirbum are recom- 

 mended. 



12. mirdndtun, Reichb. f. Lvs. lanceolate: 

 stiff, 1 -sided: sepals and petals lanceolate-: 

 almost wholly red-brown, with yellow margins; label- 

 lum linear-lanceolate, similarly marked, and having a 

 few purple lines at base, callus horned: wings of the 

 column rhomboid-serrate. Colombia, 



13. gloridaum. Linden and Reichb. f. Fls. pallid 

 ochre, spotted with brown, paniculate; sepals and 

 petals oblonir-Hirulate, acuminate; labellum lanceolate- 

 acTiminate. i-or<l:ite at base, denticulate, about as long 

 as the petals; claw with a 4-lobed, 4-toothed callus; 

 column toothed below the middle. Colombia. G.C. 

 1865:578; II. 24:680. 



14. odor&tum, Lindl. Pseudobulbs 2-3 In. long, nar- 

 rowly ovoid, compressed : Irs. 1 ft. long, narrowly en- 

 siform : panicle sometimes 2-3 ft. long, copiously 

 branched and many-fld. : fls. lM-2 in. across, dull 

 golden yellow, blotched with brownish red; sepals and 

 petals similar, narrowly lanceolate, acuminate, waved; 

 labellum hastate, lateral lobes short, rounded; terminal 

 lobe broadly subulate, narrowed, pubescent, waved; 

 disk with 2 pairs of longitudinal, obtuse, erect teeth. 

 Winter and spring. Mexico. B.M. 6502. G.C. II. 15:337. 



— Var. latemactiiatum, Andr^. Fls. larger; spots purple- 

 brown, larger and more intense. July, Aug. I.H. 17:39. 

 Gt. 37, p. 492. Free-flowering. 



SECTION II. 



A. LabeUum more or less con- 



stricted in the middle, fiddle- 

 .'ihaped. 



B. Column not winged, but liarinij 



2 projecting hornx (it tin opej- .\:>. constrictum 

 BB. Column wini/ed: u-imis pert i n,il, 

 or eonsiating of few derurenl 



spines 16. Hallii 



BBS. Column winged : wings toothed 

 or entire. 



c. Crest obsolete, 5-ridged I", lasve 



CC. Crest falcate-pectinate IS. Wallisii 



ODONTOGLOSSUM 



1115 



raceme 



ccc. Crest of radiaiint/ keels toothed 



or entire 19. tripudians 



20. Harryanum 



ccoc. Crest a bifid callosity 21. Nevadense 



22. Sanderianum 

 AA. L<,l,rll,im with an „r„lr „r„l,l„n,l 

 lil.nl, . ,,fl. n ,;,ril,il,' ,il Ihr l.<is,-. 

 B. L:ll, J,, I l.,l„.i iiol iiprnil,!: lalwl- 



tinn irilli II l,,„lh,d rrisl 23. triumphans 



24. aspersum 



25. cristatum 

 BB. Lateral lobes on the claw fleshy, 



upright: labellum with obtuse 



crest or none 26. oordatum 



27. Bictoniense 

 AAA. Labellum hastate 28. hastilabium 



15. constrictum, Lindl. Lvs. linear-lanceolate, elon- 

 gate: panicle long, slender, loosely branched: lis. 

 \.-\% in.; sepals and petals nearly similar, oblong- 

 lanceolate, acuminate, bright yellow, blotched with 

 orange-brown; labellum flddle-shaped, with rounded or 

 truncate, apiculate blade, white, with a rose-colored 

 blotch on each side, toothed. Small-flowered, but a 

 profuse bloomer, often bearing 4-5 many-flowered pani- 

 cles 1-lKft. in length. Venezuela. B.M. 5736. -Var. 

 cast4neum, Hort. Spots on sepals and petals covering 

 nearly the entire surface. I.H. 35:66. 



16. Htlllii, Lindl. Lvs. a foot long, ensiform, narrowed 

 at the base: scape 1-2 ft. long, with a many-fld. raceme 

 of equal length: fls. 3 in. across; sepals and petals 

 spreading, sub-similar, oblong-lanceolate, long-acumi- 

 nate with recurved points, golden yellow, with trans- 

 verse bands and spots of yellowish brown; labellum 

 white, with a Mood-red spot' on tlie middle lobe and few 

 s].ot^ on rl,e lai.-ral on.-. ,.-,.-, .1- .,i ,i, ,..,d-lobe emar- 

 -'"■'"•• ""I; ■' "'""■' ■'"" "■ ' ■ "I' - spinous 

 c-rr.|^ on tlo- ehiw. .I„U. I . l: M , (1237. I.H. 

 1,n:,>. F.S. 17. p. si. (I.r. i-r,,', 'H,-; 1 1. -J.-,: 140.— The 

 spots on the labellum are sometimes scattered. 



17. ISeve, Lindl. (O. Relchenheimii, Linden & Reichb. 

 f. ). Lvs. 6-10 in. long, oblong-lanceolate: sepals and 

 petals oblong-linear, acute, plane, yellow, blotched with 



eiiiii^ii ; liiHlIum smaller, white in front, violet on 



il i ; ' i Spring. Guatemala. B.M. 6265. I.H. 



I. ! II- .III.- Plants bear 4-6 strict, stout pani- 

 ' li -, .■ n. I iii_'. with numerous fls. 2 in. in diameter. 

 Not much esteemed. 



18. WAllisii, Linden & Reichb. f. (O. billulum, 

 Hort.). Lvs. linear-lanceolate: sepals and petals ligu- 

 late, honey-colored, marked with brown streaks: label- 

 lum white, with a violaceous anterior part and marked 

 with similar streaks at the base, with 3-faloate calli on 

 the base. December. Colombia. I.H. 18:56; 38:127.— 

 Elegant, with slender, drooping, mostly unbranched ra- 

 cemes, bearing few large flowers. 



19. trlpiidians, Reichb. f. and Warsz. Lvs. 7-9 in. 

 long, linear-lanceolate: raceme stiff, erect, longer than 

 the lvs., 8-10-fld. : fls. 2 in. across, dull yellow-green on 

 the back; sepals oblong-acute or subacuminate, dark 

 brown, with yellowish green tips and bases ; petals simi- 

 lar, with yellowish bands; labellum short, panduriform, 

 as long as the segments, white, with rose-colored 

 blotches, with about 10 keels radiating from the disk; 

 lateral lobes rounded, crenulate ; central lobe subreni- 

 form, erose-dentate. Peru. B.M. 6029. F.M. 1876:208; 

 1880:407. 



Var. Harry&nom, Reichb. f. Sepals and petals almost 

 blackish inside, tipped with light yellow, with a few 

 similar marks at the base of the petal: labellum light 

 yellow, with the base covered with rich mauve purple. 



20. HarryJmum, Reichb. f . Lvs. about 2, oblong-ligu- 

 late, obtuse, 6-12 in. long: raceme up to 3 ft. long, bear- 

 ing 6-12 large fls. : sepals and petals ligulate-oblong, 

 acute, wavy, brown with irregular, transverse, greenish 

 yellow markings; the petals project forward; labellum 

 large, flat, undulate, somewhat panduriform, lower half 

 white, changing to yellow; upper half brownish marked 

 with mauve lines and having about 7 serrated crests : 

 column with 2 very small toothed wings. Colombia. 

 Gn. 33:033. G.C. III. 2:169. Same as var. of No. 19? 



