468 DENDROBIUM 



A. Inflorescence racemose (fl. usnallij solitary hi Jeti- 



B. Racemes densely flowered. 

 c. Petals pinkish or purplish. 



1. secundum, Wall. Pseudobulbs terete, nearly 2 ft. 

 long: Ivs. ovate-oblong: fls. all on one side of peduncle, 

 crowded; petals smaller than sepals, rose-mauve; la- 

 bellum paler, with an apical blotch of orange. Sumatra. 



2. cumulitum, Lindl. Pseudobulbs tufted, slender, 

 erect, about 18 in. long: Ivs. oblong: fls. 1 in. across, 

 purplish, suffused with white; inflorescence globose. 

 Burma. 



cc. Petals white. 



3. D^arei, Reichb. f. Fig. 690. Pseudobulbs tall: Ivs. 

 about 2 in. long, oval-oblong : fls. about 2 in. across, 

 white; sepals lanceolate; petals nearly orbicular; label- 

 lum oblong, with a pale, yellowish green blotch in the 

 throat. Philippine Isls. Gn. 54, p. 237. G.C. III. 2-1:193. 



4. leucolophdtum, Reichb. f . Pseudobulbs stout, erect : 

 racemes many-fld. : fls. white, lateral lobes of labellum 

 greenish; midlobe narrowly oblong. Malay archipelago. 



5. F&Ipebree, Lindl. Pseudobulbs clavate, 4-angled: 

 Ivs. oblonK- lanceolate : raceme loosely fld. : fls. white, 

 with a yellowish disk near the base of the labellum. 

 Burma. 



6. crumenitum, Swartz. Pseudobulbs erect: Ivs. ovate- 

 oblong: raceme terminal, many-fld.: sepals and petals 

 ovate; labellum white. Malay archipelago. 



7. thyrsifldrum, Reichb. f. Pseudobulbs terete, 

 jointed: Ivs. oblong: racemes pendulous, ample: sepals 

 and petals white ; labellum yellow, downy-pubescent. 

 Burma. B.M. 5780. I. H. 22:207. Gn. .50, p. 28. A.F. 

 3:155. P.E. 9:329. J.H. III. 31:229. G.C. II. 15:46:i.- 

 Much like the next, and by some united with it. 



< "1 



\ J . 



VJn„y^ 



ccc. Petals yellow. 

 8. densiSlbnun, Wall. Pseudobulbs jointed, about 15 

 in. high: Ivs. oblong : racemes pendulous, ample: fls. 

 l!^-2 in. across ; sepals and petals yellow ; labellum 

 orange-yellow, downy-pubescent. Nepal. B.M. 3418. 

 G.C. II. 17:7.37; HI. 14:123 and 24:185. 



DENDROBIUM 



Var. Schr<ideri, Hort. (var. album, Hort.), haswhitish 

 sepals and petals. A.G. 20:5. 



9. Griff ithitaum, Lindl. Pseudobulbs clavate : Ivs. 

 lanceolate-oblong : fls. in drooping, flexuose racemes ; 

 petals ciliate, yellow. Burma. 



10. Fdrmerii, Past. Pseudobulbs round, attenuate at 

 base, thickening above : Ivs. oblong : racemes ample, 

 pendulous: fls. 2 in. across, tinged with pink; throat of 

 labellum orange-yellow ; sepals oblong ; petals oval. 

 Khasia Hills. B.M. 4659. -Var. albifldrum, Hort. (var. 

 album of catalogues), lias white fls., the labellum 

 marked with yellow. F.S. 23:2461. Var. ailreo-fl4vum, 

 Hort. {at'irea of catalogues 1). Fls. golden yellow; disk 

 of labellum deeper yellow. 



11. Bulcjltum, Lindl. Pseudobulbs clavate, com- 

 pressed: Ivs. ovate-oblong: racemes 10 or more fld. : fls. 

 yellow, crowded. Khasia Hills. B.M.69C2. 



12. bicameratum, Lindl. {D. brevifldrum of cata- 

 logues). Pseudobulbs fusiform or clavate, about 18 in. 

 long: Ivs. elliptic, oblong: fls. yellow, marked with red, 

 clustered on a short rachis, forming a capitate raceme. 

 Sikkim. 



13. erythroxAnthum, Reichb. f. Fls. in dense racemes, 

 yellowish striped with crimson-purple. Philippine Isls. 



BB. Racemes loosely flowered. 

 c. Pseudobulbs one-leaved. 



14. aggregatum, Roxb. Lvs. oblong, coriaceous, at the 

 summits of ovate pseudobulbs: fls. yellow, numerous, in 

 lateral drooping racemes; sepals ovate; petals broadly 

 ovate; labellum broader than long, with orange throat; 

 disk pubescent. Burma. B.M. 3643. -Var. mMuB, 

 Hort.. is a larger-fld. form. 



15. J6nldnsii, Wall. Pseudobulbs short, compressed: 

 lvs oblong, coriaceous: fls. orauge-yellow, solitary ; se- 

 pals o\ al , pttalsbroadly ovate. Assam. B.R. 25:37.- 

 \ ery like 1> mjijtejatum. 



(r P',(Hdobiilbs leafy at summit. 



D. Flowers yellow. 

 t Labellum pectinately fringed. 

 Ih BrymenAnum, Reichb. f. Pseudobulbs jointed, 

 blender, about 2M ft. high, sometimes much shorter: 

 lvs several, lam colate: fls. fleshy, golden yellow; upper 

 sepal oblong, petals and lateral sepals very similar; la- 

 bdlum ri. flexed at apex, disk downy; margin provided 

 \Mth a conspu uously long and pectinate fringe. Burma. 

 H M (.381 A F 0:609. G.C. II. 11: 475; 16:689. 



F I Lain Hum not pectinately fringed. 

 17 chrysotdxum, Lindl. Pseudobulbs clavate : lvs. 

 st\eral, 4in long, coriaceous: racemes arching, many- 

 fld petals and sepals about equal, golden yellow ; la- 

 btllum of similar color, deeper in the throat. Burma. 

 HM 505! G F 5:533. Gn. 48, p. 239.- Var. suavissi- 

 mum, Hurt P-,eudobulbs stout : fls. delightfully fra- 

 1 lilt, 1 ibellum with blotch deeper-colored than in the 



Di). Floicers greenish. 

 \> macrophyllum, Rich. (D. Veitchianum, Lindl.). 

 IScudobulbs tla\ ate, compressed: lvs. oblong: racemes 

 man\ fld tU large; sepals greenish, hairy behind; 

 petils whitish, lateral lobes of labellum greenish, 

 shadtd with purple; midlobe greenish, with purple- 

 dotted line-. I II 35:57. — Sold as D. Veitchianum, liot 

 n maciophyllum of gardens (see B. superbum). Java. 

 Dayinmn, Hort., is said to be a better form than the 

 type. 



ceo. Pseudobulbs more or less leafy to base. 

 D. Flowers white. 



19. Fytchi^num, Batem. (Z>. barbdtidum, Hort.). 

 Pseudobulbs slender: lvs. oblong -lanceolate, acute: 

 racemes 10-15-fld. : fls. white; lateral lobes of the label- 

 lum tinted with purple. Burma. B.M. 5444. 



20. Macfdrlanei, Reichb. f. Fls. several inches across, 

 white; labellum marked with purple, 3-lobed; sepals 

 lanceolate; petals narrowly ovate-lanceolate, acuminate. 

 New Guinea. 



