DENDROBIUM FORMOSUM 2oxe. 
Pseudobulbis teretibus erectis pilosis, foliis distichis ovatis, apice oblique emarginatis obtusis, racemo brevi terminali 4—5 floro; bracteis brevibus 
ovatis ; floribus maximis ; sepalis oblongis acutis, extus carina mediana, petalis latioribus obovatis, labello obovato dilatato retuso cum basi columne in calcar 
obtusum connato. 
DENDROBIUM FORMOsUM, Roxb. FI. Ind., 1832, IIL, p. 485; Wall. Pl. Asiat., p. 34, t. 39; Bot. Reg. 1839, XXV., t. 64; Paxt. Mag. Bot. VI, t. 49; 
Flore des Serres, t. 226 ; id., t. 1633 (var. giganteum) ; Ann. de Gand, 1848, t. 171; Williams’ Orch. Alb. VIL. t. 308 ; Gard. Chron., March 18, 1882, p- 369, 
fig. 54. 
Icones analytica. Columna aucta antice et a latere. Labellum explanatum. 
Tuls is the largest and undoubtedly the most showy of all the nigro-hirsute Dendrobia. It is an evergreen Indian 
species, the finest variety being obtained from Moulmein. We have measured flowers from imported plants nearly five 
inches across ; these are produced on the tops of the stems, and are of a shining, white colour, having a broad blotch of 
yellow on the upper half of the labellum, varying from light lemon to deep orange. This plant is found in many parts of 
India, and also in the Andaman Islands, whence it was sent home by Colonel Berkeley in 1882. This variety varies 
slightly in size of flowers, and has a much thinner and longer bulb. The Andaman delights in heat and moisture, and 
grows mostly in fully exposed situations, with very little shade. Owing to the whiteness, size, fragrance, and persistency 
of the blossoms, the plant has become a great favourite for cutting and decorative purposes ; it is also, when well grown, 
one of the most showy orchids for exhibition. It is best cultivated in a basket, in a temperature of about 80 deg. at 
night ; by sunheat the temperature may rise to 110 deg. Abundance of water and humidity and very little shade should 
be given. Growers have scarcely any idea of the heat and rain these plants get in their wild homes; and ifa necessary 
temperature be sustained in the growing season, and care taken to keep the plants clean and healthy, very fine pseudo- 
bulbs will result. When the growths are finished water may be gradually withheld, so that the plant may enjoy a 
season of rest; this plant must not, however, be removed to a cool house or it will die, even in the dry season, for 
in what is called the “cool time” in its native country the temperature is very high compared to many other Indian 
Dendrobe stations. We have found a mixture of the best brown fibrous peat and sphagnum moss the best material 
to grow this Dendrobe in, although our collectors have found it growing on rocks in Sylhet and the Khasia hills. The 
variety we illustrate is from Moulmein. 
Our plate is from a plant now in the possession of Baroness Adolphe de Rothschild, Pregny, Geneva. 
