DENDROBIUM 



DENNST^DTIA 



987 



New Guinea. B.M. 7745. D. Jerdonianum, Wight=D. nutans. 

 D. kardense, Schlecht. Fls. solitary in axil of If. at apex of the at., 

 small, white. A curious species. New Guinea. D. Madonnas, 

 Rolfe=D. rhodostictum. D. monophyllum, F. Muell. In habit 

 resembling a bulbophyllum: racemes with 9-15 greenish yellow fls. 

 Austral. D. Mdrtii, F. Muell. Fls. solitary; sepals and petals 

 light yellow; lip whitish, marked with lilac with 3 undulate green 

 keels on disk. New S. Wales. D. muricatum munificum, Finet.= 

 Inobulbon munificum. D. nittans, Lindl. Fls. short, in few-fld. 

 racemes, golden; sheaths hispidulous. Malabar. B.M. 7741. 

 C.O. 28 (as D. Jerdonianum j. D. puntceum, Rolfe. Fls. in 

 racemes, light rose-pink, with light yellow tips to the sepals and 

 petals. New Guinea. D. quinArium, Rolfe. "Fls. light yellow 

 with several light brown nerves in front of lip." New Guinea. 

 D. rhodostictum, F. Muell. Fls. white, with a few purple spots on 

 margins of lateral lobes of lip. New Guinea. B.M. 7900 (as D. 

 Madonnae). G.C. III. 43:162. D. rosellum, Ridley. Fls. rose- 

 colored. Borneo. D. rdseo-nervatum, Schlecht. Fls. pale rose, borne 

 at the summits of the sts. Sumatra. D. Sdnderse, Rolfe. 

 Pseudobulbs up to 3 ft. long, leafy: racemes lateral, 3-4-fld.; fls. 

 large, white, the lip with purple stripes on the disk and lateral 

 lobes, the middle lobe obovate, truncate, crenulate. S. E. Asia. 

 B.M. 8351. G.C. III. 45:374. G.M. 52:621. O.R. 17:209. D. 

 Schlnzii, Rolfe. Fls. pale green, very fugacious. Sumatra. D. 

 Schuetzei, Rolfe. Fls. very large, white. A new species of the D. 

 Dearii group. D. senile, Pav. & Reichb. f. Pseudobulbs fusiform, 

 hairy, as are the Ivs. : fls. in pairs or solitary, fleshy, rich yellow, 

 with a few orange streaks on lip. Burma, Tenasserim. Moulmein. 

 B.M. 5520. G.W. 9, p. 422. D. spathaceum, Lindl. A small 

 species with slender pseudobulbs: fls. white. Sikkim. D. specidsum 

 fusiforme, Bailey. Pseudobulbs fusiform: fls. pale sulfur or straw- 

 color to nearly white, the lip white, marked with violet. Austral. 

 G. 33:361. G.C. III. 41:337. D. spectdbile, Miq. Pseudobulbs up 

 to 2 ft., clavate, grooved: fls. 3 in. across, white, streaked and 

 spotted with dark purple, the sepals and petals undulate, recurved, 

 the former triangular-lanceolate, the petals much narrower; lip 

 undulate, narrowly panduriform, the narrow lanceolate tip re- 

 curved. New Guinea and Solomon Isls. B.M. 7747. C.O. 22. 

 A.G. 21:239. G.M. 43:53. Var. Slmmondsii, Hort. Lip much 

 longer than in the type, white, veined with dark purple. D. 

 spurium, 3. 3. Smith. Fls. solitary; sepals and petals white. A 

 distinct and singular species. Java, Borneo. D. stridtum, Hort. 

 "Sepals and petals narrow and nearly equal; lahellum as long as 

 petals, narrow, with sides folded back, whitish tinged with rose." 

 Philippines. D.subacaule, Reinw. Fls. fragrant, white speckled with 

 purple on lip; lip with very short apiculate middle lobe. Queensland. 

 D. taurinum, Lindl. Pseudobulbs cylindric: racemes many-fid.; 

 fls. large, the sepals white, the petals and lip pale rose, intensely 

 striated. Philippines. G.C. III. 31:90. B.R. 29:28. D. tonk- 

 inense, De Wild. Lip entire, furnished with crests, the median 

 one very prominent. Tonquin. D. Treacherianum, Reichb. f. = 

 Sarcopqdium Treacherianum. D. trifldrum, Lindl. =Sarcopodium 

 cymbidioides. D. undulatum var. Brodmfiddii, Fitzgerald. Fls. 

 pale greenish yellow. N. Austral. D. Victdriae-reginse, Loher. 

 Racemes few-fld. ; sepals and petals white at the base, violet-purple 

 above, the lip golden at the base, violet-purple above, marked with 

 black-purple lines of papillae. Philippines. G.M. 51:610; 54:556. 

 Gn. 75, p. 370. C.O. 21. O.R. 20:17. D. Wittiamsii, Day & 

 Reichb. f. Pseudobulbs up to 1 ft. tall, hairy, as well as the 

 Ivs.: fls. usually in pairs, 2 J/6-3 in. across, ivory-white or yellowish, 

 the throat of lip bright orange-red. N. E. India. B.M. 7974. 

 G.C. III. 35:341. D. Wilsonii, Rolfe. Racemes 2- or 3-fld.; 

 fls. delicate pink or nearly white, with small yellow blotch on 

 disk of lip. W. China. D. WoUerianum, Schltr. Racemes many- 

 fld.; fls. rose-colored. New Guinea. 



The following are some of the hybrid forms: D. Ainsworthii, 

 Moore (D. aureum X D. nobile). Fls. white, more or less suffused 

 with rose, the lip with a feathered purple spot. C.O. 1. Gn. 51, p. 

 338. G.C. II. 16:624. J.H. III. 62:281. D. Apollo grandifldrum 

 =D. rubens. D. Artemis='D. aureum X D. Ainsworthii. O.R. 

 14:72. D. Aspasia=D. aureum xD. Wardianum. O.R. 1:137. 

 D. burfordiense=D. aureum XD. Linawianum. G 29:35. D. 

 Cassiope=D. moniliforme X D. nobile. C.O. 2. D. chrysodiscus= 

 D. Ainsworthii X D. Findlayanum. D. CurtisiiD. aureum X D. 

 Cassiope. Gn. 69, p. 145. O.R. 14:73. D. Ddlhousii-nobile = D. 

 nobile XD. pulchellum. G.C. III. 27:379. D. dominyanum=D. 

 nobile X D. Linawianum. D. dulceD. aureum x D. Linawianum. 

 D. EdithaeD. nobile nobilusXD. aureum. D. end6charis= 

 D. aureum X D. monileforme. G. 32 : 293. G.Z. 36, p. 195. 

 D. etidsmum=t). endocharis x D. nobile. D. Leechianum=D. 

 aureum XD. nobile. R.H. 1904:280. C.O. la. D. melanodlscus 

 gloridsa=D. Ainsworthii X D. Findlayanum. G.C. III. 35: 219. D. 

 melanodlscus pdllens=T). Ainsworthii X D. Findlayanum. J.H. III. 

 50:25. D. Raeblingianum,=D. nobile xD. ramosum. Gn. 59, p. 

 198, desc. D. R6lfex=T). nobile xD. primulinum. D. Rdlfex 

 rdseum=D. nobile xD. primulinum. Gn. W. 18:541. D. rubens 

 grandifldrum='D. Ainsworthii X D. nobile. G.M. 53:206. D. 

 Schneideridnum=D. aureum xD. Findlayanum. D. splendidls- 

 simum grandifldrum=D. nobile XD. aureum. G.M. 43:179. Gn. 

 65, p. 140. D. Thwaites3s=D. Ainsworthii X D. Wiganise. G.M. 

 47:273. D. Vbnus=T>. nobile xD. Falconeri. G.M. 51:459. 

 C.O. 3. D. Wigdnias=D. nobile X D. signatum. D. Wigdniae 

 xanthochilum=D. nobile X D. signatum. Gn. W.20:161. D. Wig- 

 anianumT). Hildebrandii X D. nobile. G.M. 44:167. D. xanth- 

 ocentron=D. Wardianum X D. Linawianum. 



GEORGE V. NASH. 



DENDROCALAMUS: A few large bamboos of the East Indies 

 and China; see Bamboo. 



DENDROCHtLUM : Platydinis. 

 63 



DENDROMECON (Greek dendron, tree; mecon, 

 poppy). Papaveracex. An outdoor shrub in California, 

 with bright yellow flowers ; sparingly grown elsewhere. 



Smooth low branching plant with rigid alternate 

 mostly entire Ivs.: fls. golden yellow, 1-3 in. across, 

 single on short pedicels; petals 4, large; sepals 2; 

 stamens many, short: fr. a linear curved grooved 

 caps. 2-4 in. long. Long considered to comprise 

 a single species, but lately redefined by Fedde into 

 20 species, but only one species -name appears to 

 be in the trade. The division into species is largely 

 on foliage characters. It is not unlikely that some of 

 the cult, material represents one or more of these 



rigida, Benth. Rigid, very leafy, 2-10 ft. high: 

 sts. up to 2 in. thick: bark whitish: branches stiff, 

 erect: Ivs. lanceolate or ovate-lanceolate,, coriaceous, 

 reticulately veined, very acute and mucronate: fls. 

 on pedicels, 1-4 in. long: seeds black, almost globular. 

 Dry parts of Coast ranges and in the Sierras. B.M. 

 5134. F.S. 14:1411. Gn. 50:292. J.H. III. 29:92. 

 Spring-flowering. In England it is somewhat tender, 

 requiring some protection in winter. Prop, from seeds, 

 that take very long to germinate. Con- 

 siderable variation in size of fls. appears 

 to depend on the conditions in which 

 plants are growing. Evergreen, but in 

 hard winters in Calif., loses most of its 

 Ivs. by Feb., when, becoming 

 scraggly, it may be cut back to 

 ground for renewal. L. H. B.t 



1239. Tip of leaf of Dennstsedtia 

 punctilobula. ( x J) 



1240. Fruiting lobe 

 of Dennstifidtia punc- 

 tilobula. 



DENDROPANAX (Greek, tree Panax). Araticiceae. 

 Unarmed trees and shrubs from Trop. Amer. and Asia, 

 also China and Japan. Fls. hermaphrodite, rarely 

 polygamous. Species about 20. D. japonicum, Seem. 

 (Hedera japdnica, Jungh.), may be secured from deal- 

 ers in Japanese plants. The Ivs. have been compared to 

 Fatsia japonica, but are smaller and mostly 3-lobed 

 but simple. The floral parts are in 5's: infl. umbellate, 

 terminal nearly simple and not showy: berry globose. 

 Cult in temperate house. N. TAYLOR.! 



DENDROPHYLAX: Polyrrhvsa. 



DENNSTJ^DTIA (August Wilhelm Dennstedt, early 

 German botanist ) . Polypodidceae. Hardy or green- 

 house ferns of wide distribution, often referred to Dick- 

 sonia but belonging to a different family from the tree 

 ferns of the latter genus from the antarctic or southern 

 hemisphere. Indusium inferior cup -shaped, open at 

 top and adherent on outer side to a reflexed toothlet: 

 Ivs. 2-3-pinnatifid, from erect or creeping rootstocks. 

 Species about 30; of simple cultural requirements. 



punctilobula, Moore (Dicksbnia pilosiuscula, Willd.). 

 Figs. 1239, 1240. Rootstock slender, creeping, under- 

 ground: Ivs. light green, 1-2^ ft. long, 5r-9 in. 

 wide, usually tri-pinnatifid, under surface minutely 



