34 • 



DENDROBIUM FORMOSUM. Tab. 39 



Caulibus teretibus, pendulis, pilosis ; foliis distichis, ovatis, apice oblique emarginatis, obtusis ; raceme brevi, ter- 

 minali, 4— 5-floro ; bracteis brevibus, ovatis ; (floribus maximis ;) scpalis oblongis, aciitis : lateralibus basi longe pro- 

 ductis, petalis duplo latioribus, acutis ; labello obovato, dilatato, retuso, cum basi columuae in calcar obtusum connato. 

 —LindL MSS. 



Dendrobium formosum, Roxb. Hort. Beng. p. 63. 



Habitat in montibus Napaliee ; in montibus Sillet confinibus, M. R. Smith ; in Martabania ad Moalmyne ; ad Tavoy 

 orai Tenasserim, Gul. Gomez ; florens et fructiferum tempore calido et pluvioso. 



Orchidea magna, rigida, arborum parasitica, dependens. Radix constans fibris copiosis, fasciculatis, cylindricis, lajvibus, spongioso- 

 * corticatis, fuscescentibus, simplicibus. Caulbs plures, clavato-cylindrici, digitum crassi, pedales, 2-pedalesque, sublignosi, sulcis pluribus, 

 profundis exarati, totidemque angulis obtusis notati, omnin^ induti vaginis foliorum arctfe adpressis, pollicaribus, pilis brevibus, atris, solu- 

 bilibus obsitis, infimis aphyllis. Folia approximata, alterna, bifarife patentia, interstitiis triple longiora, oblonga, apice obtusiuscula bine 

 retusa et obsolete bidentata, dentibus obtusissimis, basi obtusa, subamplexantia ; coriacea, Isevia, lucida, 3-pollicaria, supra par^m canali- 

 culata, subttis pallida, parum puberula, costa carinata. Flores maximi, campanulato-infundibuliformes, limbo patentissimo, 3-pollicari ; 

 albi, labello inti\s flavo, fragrantes, 4 vel 5 approximati in racemum brevem, terminalem, sessilem, subrotundum. Pedunculus teres, car- 

 nosus, albus, sesquipoUicaris, surshm leviter ampliatus, Isevis, basi suffultus bractea ovata, concava, 3 lineas longa. Sepala subcoriacea, 

 patentia, oblongo-lanceolata, acuta, scsquipollicaria, plana, dorso subcarinata ; lateralia basi dilatata cum columnse basi connata in 

 calcar magnum, conicum, obtusum, pedunculo dimidi^ brevius. Petala rotundato-obovata, acutiuscula, sepala longitudine eequantia sed 

 iisdem dupl6 latiora, basi parfim attenuata. Labellum petalis parfim majus, obovatum, retusum, deorsi!im attenuatum et subinfundiduli- 

 forme marginibus rotundato-porrectis, disco nudo, flavo. Columna brevissima, valdfe crassa, basi latissima producta, anticfe plana, stigmate 

 cavo, subterminali, dorso convexo-gibbosa. Anthera terminalis, ovata, posticfe adfixa, obtusa, 2-locularis. Mass^ pollinis 4, ^blongae, 

 per pares contiguse. Ovarium breve, obtusfe triangulare. Capsula magna, 2-pollicaris, ovata, triangularis, fusca, Isevis. 



This stately plant was first discovered by the late Mr. M. R. Smith, on the mountains bordering on Sillet, and thence 

 introduced into the Calcutta garden. I have found it on most of the mountains in Nipal, as well as on the plains 

 of Martaban about Moalmyne. One of my plant-collectors, William Gomez, who accompanied me on my journey 

 in the Burma countries, found the plant at Tavoy on the coast of Tenasserim. Neither Mr. Lindley nor myself have 

 been able to discover any difference among these plants. They grow generally in large tufts on trees, sometimes on 

 rocks ; their flowers are very^large, white, with the lip yellow within, possessing a delightful, though faint perfume. 



Plate XXXIX. Fig. 1. Flower. 2. The same dissected. 3. Ripe capsule. 



DENDROBIUM densiflorum. Tab. 40. 



Caulibus articulatis, clavatis, pendulis, ad apicem foliosis ; foliis oblongis, acutis, nervosis ; racemis lateralibus, 

 multifloris, foliis longioribus : junioribus strobiliformibus ; bracteis oblongis, plicatis, recurvis, pedicellis longioribus ; 

 sepalis patentissimis, ovatis, obtusis ; petalis conformibus, paullo majoribus ; labello majusculo, rhomboideo, ungui- 

 culato, denticulate, retuso. — L'lndl. MSS. 



Habitat in montibus Napaliae, frequens. Floret tempore pluvioso. 



Planta pendula, laevis, ceespitosa, arborum parasitica, pedalis — 2-pedalis. Radix constans fibris numerosis, fasciculatis, teretibus 

 indivisis. Caules plures, rigidi, cylindraceo-clavati, lucidi, setate flavicantes, maxima parte nudi, sulcis aliquot profundis totidemque 

 angulis obtusissimis notati, vestigiis vaginarum remotis annulati, extrorstim digitum crassi, apice foliosi. Folia vald^ approximata, 

 patentia, alterna, ovato-oblonga, acuta, 5-pollicaria, firma, subcarnosa, lucida, plana, nervosa, basi contracta, obsoletissimfe petiolata 

 abientia in vaginas breves, adpressas, deciduas. Racemus magnus, solitarius, laxfe pendulus, versus apicem caulis infra folia lateralis 

 pedunculatus, 6 — 8-pollicaris, ovato-oblongus, obtusus, multiflorus; novellus, longfe ante expansionem, sessilis, ovatus, strobiliformis 

 2-pollicaris, valdfe regulariter imbricatus bracteis adpressis, planis, alternantibus. Pedunculus crassus, cylindricus, 2 — 3-pollicaris, bracteis 

 sparsis, oblongis, recurvis, nervosis, membranaceis, fer^ pollicaribus, persistentibus. Flores valdfe numerosi, majusculi, flavi, approximati 

 undique sparsi, patentissimi, insidentes pedicellis teretibus, pollicaribus, sufiultis hracted magna, obovata, nervosa, persistente. Sepala ob- 

 longa, obtusa, semipoUicaria; lateralia pariim majora, basique dilatata infra basin columnse in calcar brevissimum, subcylindricum obtusum 

 connata, uti petala ovata, subsequantia, patentissima. Labellum planum, patens, retusum, ciliato-denticulatum, supra pubescens, basi 

 desinens in unguem brevem, canaliculatum. Columna brevis, conica, crassa, basi leviter producta. Anthera ovata. 



This lovely Orchidea comes so near to Roxburgh's Dendrobium clamtum (Hort. Beng. p. 63.), that I should con- 

 sider them as identical, if he had not ascribed bulbs to his plant, of which ours is entirely destitute. In the 

 Calcutta garden the two plants maintain that character, although in other respects they are alike. It is possible that 

 under particular circumstances, the bulbs or pseudobulbs may become elongated into clavate stems, and if so the 

 Sillet plant would be the same species with ours from Nipal. 



Plate XL. Fig. 1. Flower dissected. 2. Column. 



