64 
DENDROBIUM formosúm. 
Beautiful Tree-bloom. 
GYNANDRIA MONANDRIA. 
Nat. Ord. OrcHiDacez, $ MarAxiDEA. 
DENDROBIUM. Botanical Register, vol. 7. fol. 548. 
D. formosum ; caulibus teretibus pendulis pilosis, foliis distichis ovatis apice 
obliqué emarginatis obtusis, racemo brevi terminali 4-5-floro, bracteis bre- 
vibus ovatis, (floribus maximis), sepalis oblongis acutis: lateralibus. basi 
longè productis, petalis duplo latioribus acutis, labello obovato dilatato 
retuso cum basi columns in calcar obtusum connato. Lindley in Wall. 
Pl. As. Rar. p. 34. t. 39. 
D. formosum. Roxb. Fl. Ind. iii. 485. Wall. Cat. no. 1998. 
This magnificent species flowered at Chatsworth, in May 
1838, and the drawing on the opposite page was then made 
from a specimen given me by his Grace the Duke of Devon- 
shire. As a white flowered epiphyte, it is almost unrivalled 
among Asiatic Orchidacee, the Phalenopsis amabilis being 
the only one that can enter into comparison with it. 
It has been already amply described by Drs. Roxburgh 
and Wallich ; the former tells us he found it on trees in the 
forests of Sylhet, and in the Garrow mountains, flowering in 
April and May. | 3 
It was gathered by Dr. Wallich on the mountains of 
Nepal and Sylhet; also in the province of Martaban near 
Moulmein, and in Tavoy on the Tenasserim coast, flowering 
and fruiting in both the dry and rainy seasons. Mr. Grit- 
fith also met with it on trees in damp places in the neigh- 
bourhood of Moulmein ; so that its range is unusually ex- 
tensive for plants of this kind ; it does not however appear 
to belong to the Flora of the Indian Archipelago. Dr. 
Wallich says it grows generally in large tufts upon trees, 
