DENDBOBIUM 



■dhj i 



!)•!/ 



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. cumul&tiun, 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. 

 ?.. D^arei, Reiohb. f. Fig. 690. Pseudobulbs tall: Ivs. 

 ;il"iiit. L' ill. l"ng, oval-oblong: fls. about 2 in. across, 

 wliitr; ^.[.als lanceolate; petals nearly orbicular; label- 

 luiii .ilil.nitr. with a pale, yellowish green blotch in the 

 throat. Philippine Isls. Gn. 54, p. 237. G.C. III. 24:193. 



4. leucoloplidtuin, Reiehb. f . Pseudobulbs stout, erect: 

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

 greenish; midlobe narrowly oblong. Malay archipelago. 



5. Pdlpebrae, Lindl. Pseudobulbs clavate, 4-angled: 

 Ivs. oblong-lauceolate ; raceme loosely fld. : fls. white, 

 with a yellowish disk near the base of the labellum. 

 Burma. 



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

 oblong: raceme termmal man\ HI sepils and petals 

 ovate; labellum white Malaj archipelago 



7. thyrsilldrum, Reichb f r e 1 1 bulbs terete 

 jointed: Ivs. oblong nr ] I 1 iple sepals 

 and petals white ; lal 11 pubescent 

 Burma. B.M. 5780 I II ["SAP 

 3:155. F.E. 9:329. J II 1 I! 1 463 - 

 Much like the next and 1 \ m 1 1 it 



^ /■ y^ .. >fr^ J. / i.^_ ,11 



^^<T- ^<^ 



f. 



690. Dendrobiu 



(X%.) 



ccc. Petals yellow. 

 8. denaiSldnim, Wall. Pseudobulbs jointed, about 

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

 lM-2 in. across ; sepals and petals yellow ; labellu 

 orange-yellow, downy-pubescent. Nepal. B.M. 341 

 G.C. II. 17:737; III. 14:123 and 24:185. 



DEXDROBIUM 



Var. Schrdederi, Hort. (var. dlhum, Hort.), has whitish 

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



9. Griffithiinum, Lindl. Pseudobulbs clavate : Ivs. 

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

 petals ciliate, yellow. Burma. 



10. F4nnerii, 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. albillorum, Hort. (var. 

 (ilium of catalogues), has white fls., the labellum 

 marked with yellow. F.S. 23:2461. Var. aiireo-flivum, 

 Hort. [niirea of catalogues %). Fls. golden yellow; disk 

 of labellum deeper yellow. 



11. Bulcitum, Lindl. Pseudobulbs clavate, com- 

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

 yellow, crowded. Khasia Hills. B.M. 6962. 



12. bicamer&tum, 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. erythroxinthum, Reichb. f. Fls. in dense racemes, 

 yellowish striped with crimson-purple. Philippine Isls. 



BB. Sacemes loosely flotiered. 

 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. mftjus, 

 Hort., is a larger-fld. form. 



15. JSnldnsii, Wall. Pseudobulbs short, compressed: 

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

 pals oval; petals broadly ovate. Assam. B.R. 25:37.— 

 Very like I>. aijgngaluni. 



CO. Pseiidohulbs leafy at summit. 



D. Flowers yellow. 

 E. Labellum pectinutely fringed. 



16. Brymeriintun, Reichb. f. Pscudnbulbs jointed, 

 slender, about 2)^ ft. high, mum ilm. mihli shorter: 

 lvs. several, lanceolate: fls. II. ' 'li:\v; upper 

 sepal oblong; petals and hit. i . -miilar; la- 



reflexed at apex, disk i .^ . in n jm provided 



with a conspicuously long aud |H 1 1 mai. Uuiki- Burma. 

 B.M. 6383. A.F.6:609. G.U. II. 11: ITo; 16: 689. 



EE. Labellum not pectinately fringed. 



17. chrysotdxum, Lindl. Pseudobulbs clavate : lvs. 

 several, 4 in. long, coriaceous: racemes arching, many- 

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

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

 B.M. 00.53. G. P. 5:533. Gn. 48, p. 239.- Var. BuavlSBi- 

 mum, Hort. Pseudobulbs stout : fls. delightfully fra- 

 L-rant; labellum with blotch deeper-colored than in the 

 type. Burma, 1847. 



DD. Flowers greenish. 



18. macrophjllum, Rich. (D. Veitchiihuim, Lindl.). 

 Pseudobulbs clavate, compressed: lvs. oblong: racemes 

 many-fld.: fls. large; sepals greenish, hairy behind; 

 petais whitish ; lateral lobes of labellum greenish, 

 shaded with purple; midlobe greenish, with purple- 

 dotted lines. I.H.35:57.-Sold as D. Veitchianum, not 

 D. macrophyllum of gardens (see />. stiperbum). Java. 

 Day&num, Hort., is said to be a better form than the 

 type. 



ccc. Pseudobulbs more or less leafy to base. 

 D. Flowers white. 



19. FytcMilnum, Batem. (D. barbdtulum, 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. Macf4rlanei, Reichb. f. Fls. several inches across, 

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

 lanceolate; petals narrowly ovate-lanceolate, acuminate. 

 New Guinea. 



