ODONTOOLOSSUM 



odontc)c;lossum 



ai>}H\U". as with the native iiiiixirteil i)ioces. Even the 

 oiii-e niix" native iiattirai hybrids are now iiroduced, 

 but from the finest types as jiarents, and sold now at 

 imnlest priees. It is too niueh to exi)e(t that the cul- 

 tivation of O. crispuin and other coollioiise sjiecies will 

 become pMieral until there is certainty of control of 

 tcmjH'rutiiR's in summer !is in winter. Good results 

 have biHMi pained by giving a weak solution of anuno- 

 niiim piiosphate, two ounces potassiiun nitrate, three 

 ounces to three gallons t>f water, using one oimce of this 

 stock solution to each gallon used for the plants. This 

 is knowii as the "Cookson formula," advocated by a 

 cultivator who noticed that o<lontoglossums flourished 

 in the vicinity of smoky cities, and it was traced to the 

 deiiosit of soot on the glass roofs carried by rain-water 

 into the cisterns to be used for the jilants. Rain-water 

 is seldom conserved here for watering orchids, but the 

 addition of this slight quantity of fertilizer seems to be 

 beneficial imd to take the jilace of the rain-water. 



E. O. OltPET. 



INDEX. 



albiun, 27, 40. Gouvilleanxim, 34. nebulosum, 36. 



.4/r-jan/fr.T. 34. Grairianuni, 34. nevadense, 21. 



Aiulersonianum, 34. grande, 3. nobile, 33. 



.\ndersonii. 3'J. grandifloruni, 6, 41. odoratum. 14. 



apiatum. 34. guttatuni. 34, 36. Oerstedii, 38. 



Ashworthianum, 34. Hallii. 16. pardinum, 1. 



aspersum, 10. 24. Harryanum, 19, 20. Pescatorei, 33. 



hflluium, 18. hastiiabium, 28. Pittianum, 34. 



bictoniense, 27. hebraicum, 10. pulchelluni, 41. 



Bluntii, 34. hystrix. 8. punctatuin, 40. 



bre\'ifoIiuin, 2. Insleayi, 4, 5. purpura-scens, 34. 



candidulum. 36. Karthausii, 34. radiatuni, 8. 



castaneum, lo. Kranieri, 37. ramosissimum, 29. 



Cen'autesii, 39. l.-pve, 17. Keichenheimii, 17. 



cirrhosum, 31. lateniaculatum, 14. rosellum, 40. • 



citrosmum, 40. I.ehniannii, 34. roseura. 40. 



Cooksoniai, 34. Icopardinum, 5. Rossii, 43. 



constrirtum. 15. Lindleyanuni, 7. rubescens, 43. 



Coradinei, 6. Londesboroughian- Ruckerianum, 32. 



cordatum. 26. uni, 1. Sanderfe, 34. 



coronarium, 2. Luoiani, 34. Sanderianum, 22. 



crispatuni, 8. luteo-purpurcuni. 8. sceptrum, 8. 



crispum, 34. vuicranthum, 4. Schliepcrianum, 4. 



cristatum. 2.5. inaculatum, 11, 34. Schrcederi, 34. 



Dau-sonianum, 44. madrense, 35. splendens, 5, 11, 27. 



Dayanum, 25. majus, 39, 41, 43. superbuni, 6, 11. 



decorum, 39. Mari;t'. 34. Tho!npsoriianuni. 11. 



Edwardi, 45. inuiillare, 35, 36. Triana?, 34, 



Egertonii. 42. maximum. 40. tripudians. 19. 



Ehrenberijhii, 43, 44. membraruiceum, 39. triumphans, 23. 



facctum, 9. mirandum, 12. Veitcnianum, 33, 34. 



Fowlerianum, 34. Mundyanum, 34. Wallisii, IS. 



gloriosum, 13. nievium, 30. 



SYNOPSIS OF SECTIONS. 

 A. FU. yfllow, variously spotted with brown, crimson, etc. 

 Section I. Ground-color of the labellum yellow... 



Species 1-14 

 Section II. Ground-color of the labellum white, 



rarely pale yellow or changing to yellow. Species 15-28 



A.\. Fh. white, sometimes shaded with rose or cream, never 



with a bright yellow or greenish yellow ground-color. 

 Section III. Plants not dwarf: fls. numerous, in 



branched panicles much exceeding the Ivs 



Species 29-34 

 Sectio.n IV. Plants manifestly of dwarf habit: fls. 

 few, in slender racemes, with the scape (and often 

 the whole infl.) shorter than the Ivs., rarely ex- 

 ceeding them Species 35-44 



AAA. Fls. dark purple. 

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



panicles Species 45 



Section I. 



A. Laltellum reniform, larger than the 



restofthefl 1 Londesbor- 



AA. Lalicllum oblong or fan-shaped, [oughianum 



shorten than the sepals; apex 

 rounded, emarginate, or acute; 

 margin entire. 

 B. Apex rounded or emarginate. 



c. Sepals Hub-rotund 2. brevifolium 



CC. Sepals oblong to lanceolate. 



D. Column with 3 blunt auri- 

 cles. 

 E. Fls. marked with red- 

 brown 3. grande 



EE. Fls. marked with darker 



yellow 4. Schlieperi- 



DD. Column with 3 cirrhous |anum 



teeth 5. Insleayi 



(). Coradinei 



Bu. Apex acute 7. Lindleyanum 



.\.\.\. Labellum variously shaped, jim- 



brintcly toothed, and having a (ream 



pectinate crest 8. luteo-purpu- 



!). facetum 

 A-\.\A. Labellum triangular or triangular- 

 oblong, long-acuminate 10. hebraicum 



11. maculatum 

 AAA.\.\. Labellum lanceolate, cordate or has- 

 tate at base. 

 B. Column with rhomboid wings. . . 12, mirandum 

 BB. Colum.n with 3 subulate awns at 



apex 13. gloriosum 



14. odoratum 



1. Londesboroughianum, Reichb. f. Pseudobulbs 

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

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

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

 many abrujit, 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. Mcx. 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. brevifolium, Lindl. (O. coronarium, Hort.). Plants 

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

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

 diam.; sepals subrotund-unguiculate, undulate; petals 

 similar, smaller; labelhun smaller than the sepals, 

 cuneate-emarginate, yellow in front, marked about the 

 column with yel- 

 low and purple, with fe 



a 3-toothed tuber- jjgL 



cle on the ba.se. ^ktf 



Colombia. I.H. 21: ^^iS^-S^v 



3.' grande, Lindl. ^ .^izS^^^Uf^ 

 Baby Orchid. Fig. ^ 'i#?"^C^ ^-'JP^J '^■■' 

 2.561 (redrawn from ^^ \ ^^^fifflr '«''''' '" ' 



"The Garden"). \ ^\ ^pfW ^•%S Iv 

 Pseudobulbs 2-lvd.: 'i''i^ %i \ "^l | ,-"'. ,l] 



twice as long as the ^'vr'^^' '■•<^^^mS| 4 ^\B^ 



ones keeled, yellow, "''fi^^^^ Wrij^. f ' 



banded with rich " ^^ii^Py miitj '€• ^ 



reddish brown "''^'V i' ''■ mIis^ww' 



.spots; petals oblong, '*^^~"'''^skv> V;iJw^MIH»' 



broader, obtuse, '•■^:^^^^i^^>^iii^^!^^^' 



subundulate, apex 25^1. odontoglossum grande. 



yellow; 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. 

 39.55. F.S. 1:24, 25. P.M. 8:49. Gn. 48, p. 219; 51: 

 118. G.C. in. .17:41 (abnormal fls.); 42:387.— A 

 magnificent species with half-drooping racemes a 

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

 in, diam. 



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

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

 blotched and barred with deeper yellow mostly on the 



