1114 



ODONTOGLOSSUM 



ODONTOGLOSSUM 



Section IV. Plants manifestly of dwarf habit: 

 fls. few, in slender racemes, with the scape (and 

 often the whole inflorescence) shorter than the 

 Ivs., rarely exceeding them Species 35-44 



AAA. Fls. dark purple. 



Section V. Fls. numerous, small, in large, 

 branched panicles Species 45 



SECTION I. 



A. Labellum reniform, lar- 

 ger than the rest of the 

 flower 



A. Labellum oblong or fan- 



shaped, shorter than 

 the sepals: apex 

 rounded, emarginate, 

 or acute: margin en- 

 tire. 



B. Apex rounded or emar- 



ginate. 



c. Sepals sub-rotund 2. 



cc. Sepals oblong to lanceo- 

 late. 

 D. Column with 2 blunt 



auricles 3. 



4. 

 DD. Column with 2 cirrhous 



teeth 5. 



BB. Apex acute 6. 



7. 



AAA. Labellum variously 

 shaped, fimbriately 

 toothed, and having a 



pectinate crest 8. 



9. 



LAAA. Labellum triangular or 

 triangular - oblong, 



long -acuminate 10. 



11. 



AAAA. Labellumlanceolate, cor- 

 date or hastate at base. 

 B Cohimn with rhomboid 



wings 12. 



BB. Column with 2 subulate 



awns at apex 13. 



14. 



1. Londesboroughianum 



brevifolium 



grande 

 Schlieperianum 



Insleayi 



Coradinei 



Lindleyanum 



luteo - purpureum 

 Jacetum 



Hebraicum 

 maculatum 



mirandum 



gloriosum 

 odoratum 



1. Londesboroughianum, Reichb. f. Pseudobulbs 

 roundish ovate, 1-2-lvd.: raceme 3-6 ft. long, bearing 

 as many as 30 fls.: sepals oblong, undulate, apiculate; 

 petals obtuse, apiculate, wider; both light yellow, with 

 many abrupt, narrow, concentric brown markings: 

 blade of the labellum extending beyond the sepals, over 

 1 in. across, light yellow, with few brown blotches at 

 base. Autumn. Mex. I. H. 30:497. Gn. 16, p. 502. 

 F.M. 1877:246. A distinct plant resembling an Oncid- 

 ium. Var. pardinum, Hort. Lip profusely dotted with 

 brownish crimson. Gn. 16, p. 503. 



2. brevifdliutn, Lindl. (O. corondrium, Hort.). Plants 

 with leathery, ovate-oblong, spreading Ivs. and erect 

 racemes, about 1 ft. high, bearing 10-20 fls. 2-2% in. in 

 diameter: sepals subrotund - unguiculate, undulate: 

 petals similar, smaller; labellum smaller than the sepals, 

 cuneate-emarginate, yellow in front, marked about the 

 column with yellow and purple, with a 3-toothed tubercle 

 on the base. Colombia. I. H. 21:170. G.C. II. 24: 177; 

 111.18:489; 19:79. G.M. 34:819; 38:127. 



3. grande, Lindl. BABY ORCHID. Fig. 1509. Pseudo- 

 bulbs 2-lvd. : Ivs. broadly lanceolate: scape few-fid., twice 

 as long as the Ivs. : sepals lanceolate, the lateral ones 

 keeled, yellow, banded with rich reddish brown spots; 

 petals oblong, broader, obtuse, subundulate, apex yel- 

 low; labellum almost rotund, apex slightly emarginate, 

 yellow, banded and spotted with rusty blotches, and 

 with a large-lobed tubercle on the claw. Autumn. 

 Guatemala. B.M. 3955. F.S. 1:24-26. P.M. 8:49. 

 Gn. 48, p. 219; 51:1105. G.C. III. 17:41 (abnormal fls.). 

 A magnificent species with half-drooping racemes a 

 foot long, bearing few large, brilliantly colored fls. 5-6 

 in. in diameter. Fig. 1509 is redrawn from "The Garden." 



4. Schlieperianum, Reichb. f. (O. Insleayi, var. ma- 

 crdnthum, Lindl.). Fls. on erect racemes, pale yellow, 



blotched and barred with deeper yellow mostly on the 

 lower half of the segments. Autumn. Costa Rica. 

 G.C. 1865: 1082; II. 25:269. F.S. 17, p. 78. -Resembles 

 a small pale O. grande, but fine for summer flowering. 



5. Insleayi, Lindl. ( Oncidium Insleayi, Barker) . Lvs. 

 leathery, oblong, shorter than the raceme : fls. 3X-4 in. 

 across, yellow, spotted with brown, borne in a stiff, 

 erect raceme; sepals and petals oblong, undulate, nearly 

 equal ; labellum shorter, ovate, retuse, sagittate and 

 tuberculate at base, orange-yellow, spotted with reddish 

 brown. Oct.-Dec. Mex. F.S. 1:49. Gt. 39, p. 474. 

 Free-flowering. Resembles O. grande. Var. splendens, 

 Reichb. f. Fls. larger, labellum and segments clouded 

 with brown, yellow only at the tip. Gn. 25:428. G.C. 

 11.25:305. Var. leopardinum, Hort. A highly colored 

 form. Segments pale yellow, heavily barred with chest- 

 nut-brown. R.B. 14:61. 



6. Coradinei, Reichb. f. (O. Lindleyanum, Reichb. f. 

 and Warsz.x O, crispum, Lindl.). A supposed natural 

 hybrid with the habit of O. crispum. Raceme arching, 

 few-fld. : fls. stellate, 3 in. across, dark sulfur color, with 

 few chestnut-brown spots; sepals and petals oblong, 

 acuminate, undulate ; labellum shorter, oblong-acute, 

 whitish, with a large oblong red-brown blotch near the 

 center and several smaller ones on the disk; crest 

 3-toothed on each side. Resembles O. triumphans, 

 but of more slender growth. Winter. Colombia. 

 G.C. 1872:1068 ; II. 24:200 ; 25:269 ; III. 25:315.-Var. 

 sup6rbum, Hort. A more robust var. with richly colored 

 fls. : panicle much branched, 2 ft. long. Mexico. Var. 

 grandifldrum, Reichb. f. Fls. yellow, blotched and spot- 

 ted with dark brown, large and handsome. Colombia. 



7. Lindleyanum, Reichb. f. and Warsz. Lvs. linear: 

 raceme lax: fls. 2-3 in. across, thin; sepals and petals 

 yellow, blotched and striped with brown; lateral lobes 

 of the labellum small, white, with purple spots; middle 

 lobe red-brown, tipped with yellow. Spring. Colombia. 

 A variable species, supposed to be the parent of many 

 hybrids. 



8. luteo- purpureum, Lindl. Lvs. ensiform, narrowed 

 at base: fls. showy, 2-3 in. across, in a robust horizontal 

 raceme ; sepals ovate-oblong, undulate, brownish purple, 

 with a yellow margin ; petals similar, toothed and spotted 

 with purple brown ; labellum quadrifid, cordate or oblong, 

 fimbriate yellow, spotted with purple and rose; crest on 

 the claw pectinate. Winter and spring. Colombia. 

 G.C. 11.21:585; 25: 140. -Owing to its wide geographical 



1509. Odontoglossum grande. 



scope, this species is extremely variable. A very mixed 

 progeny has resulted from the crossing of this with other 

 species, and the intermixture of the descendants. Var. 

 radiatum, Hort. (O. radiatum, Reichb. f. ). Sepals and 

 petals narrow, yellow, heavily spotted with dark brown; 



