ODONTOGLOSSUM 



labellura expanded in f ront,white, shading into a brown- 

 ish blotch at base. G. C. II. 25:76. Var. crispatum, 

 Reichb. f . Front half of the labellum convolute into deep 

 folds, flmbriate. G.C.III. 5: 233. Not advertised. Var. 

 sc6ptrum, Reichb. f. Sepals creamy yellow, barred and 

 washed with brown; petals broader- toothed, densely 

 spotted with brown ; labellura whitish. I. H. 18:73; 37:99. 

 Not advertised. Var. Hystrix, Hort. ( O. Hystrix, Hort. ) . 

 Labellum much fringed, and crests very spiny. 



9. facetum, Reichb. f. (O. Hdllii Lindl.x O. luteo-pur- 

 pureum, 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, Reichb. f. (O. cristatum, Lindl.x O. 

 cirrhosum,Liiudl,). Natural hybrid. Fls. 2% in. across, 

 borne in a panicle; sepals lanceolate; 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. aspersum, Rolfe. Differs slightly from the type 

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

 purple-brown. 



11. maculatum, La Llave. & Lex Pseudobulbs 

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

 ceme pendulous, loosely many-fld., longer than the Ivs.: 

 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. splendens and var. superbum are recom- 

 mended. 



12. mirandum, Reichb. f. Lvs. lanceolate: raceme 

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

 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. gloridsum, Linden and Reichb. f. Fls. pallid 

 ochre, spotted with brown, paniculate; sepals and 

 petals oblong-ligulate, acuminate; labellum lanceolate- 

 acuminate, cordate 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. odoratum, Lindl. Pseudobulbs 2-3 in. long, nar- 

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

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

 branched and many-fld. : fls. l%-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. latemaculatum, Andre". Fls. larger; spots purple- 

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

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



SECTION II. 



A. Labellum more or less con- 



stricted in the middle, fiddle- 

 shaped. 



B. Column not \cinged, but "having 



2 projecting horns at the apex.lt>. constrictum 

 BB. Column winged: wings pecthxitf 

 or consisting of fen' decurved 



spines 16. Hallii 



BBB. Column winged: wings toothed 



<>> ait'i >< . 



c. Crest obsolete, 5-ridged 17". laeve 



CC. Crest falcate-pectinate 18. Wallisii 



ODONTOGLOSSUM 



ccc. Crest of radiating keels toothed 



19. 



cccc. Crest a bifid callosity .......... f ?.' 



->. 



AA. Labellum u-tth an ovate or oblong 

 blade, often cordate at the base. 

 B. Lateral lobes not upright: label- 

 lum with a toothed crest ...... 23. 



24. 

 25. 



BB. Lateral lobes on the claw fleshy, 

 upright: labellum with obtuse 

 crest or none .................. 26. 



27. 

 AAA. Labellum hastate ............... 28. 



11 15 



tripudians 



Ne^densT 

 Sanderianum 



triumphans 



aspersum 



cristatum 



cordatum 



Bictoniense 



hastilabium 



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

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

 1-1% in.; sepals and petals nearly similar, oblong- 

 lanceolate, acuminate, bright yellow, blotched with 

 orange-brown; labellum fiddle-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 1-1% ft. in length. Venezuela. B.M. 5736. -Var. 

 castaneum, Hort. Spots on sepals and petals covering 

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



16. Hdllii, 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 blood-red spot on the middle lobe and few 

 spots on the lateral ones, erose-dentate, mid-lobe emar- 

 ginate, with a short awn in the sinus, with 2 spinous 

 crests on the claw. July. Ecuador. B. M. 6237 I H 

 18:58. F.S. 17, p. 81. G.C. 1865:962; 11.25:140. The 

 spots on the labellum are sometimes scattered. 



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

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

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

 cinnamon; labellum smaller, white in front, violet on 

 the upper half. Spring. Guatemala. B.M. 6265. I.H. 

 6:213. B.R. 30:39. Plants bear 4-6 strict, stout pani- 

 cles, 3 ft. long, with numerous fls. 2 in. in diameter. 

 Not much esteemed. 



18. Wallisii, Linden & Reichb. f. (O. Ullulum, 

 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-falcate 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. tripudians, Reichb. f. and Warsz. Lvs. 7-9 in. 

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

 the Ivs., 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. Harryanum, 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. Harryanum, 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. 33:633. G.C. III. 2:169. Same as var. of No. 19 



