59 
Professor Don and some other modern Botanists, there are 
125 species. Professor Don's genera Ophelia and Agathotes 
are combined, and 15 species of the two are described. 
Finally, our wild Villarsia nymphoides is referred, with some 
others, to the genus Limnanthemum of Gmelin, distinguished 
from the true Villarsias by its indehiscent fruit. 
85. DENDROBIUM bicameratum ; caulibus fusiformibus, foliis lineari-lan- 
ceolatis apice obliqué bidentatis, pedunculis lateralibus squamatis 4-floris, 
floribus concavis subcarnosis, sepalis petalisque subrotundo-ovatis acutis, 
labelli trilobi laciniá intermedia rotundatá apiculatá carnosá lateralibus trian- 
gularibus acutis breviore, column facie excavatá semibiloculari. 
A native of the north of India, whence it was brought by 
Mr. Gibson for the Duke of Devonshire. I am indebted to 
George Barker, Esq. of Birmingham, for a specimen. The 
stems appear to grow nearly upright, and are rather short, 
fusiform and furrowed when old. The flowers are a little 
smaller than those of Maxillaria stapelioides, and like them 
in form; their colour is dull po spotted and streaked 
with purple. In the specimen 1 examined the flowers grew 
in fours, on a very short peduncle, closely covered with 
ovate concave bracts, speckled with purple. The excavation 
of the face of the column, and its division into two cells are 
remarkable. 
86. GONGORA nigrita ; hypochilii convexi cornubus lateralibus ascendentibus 
abbreviatis aristis setaceis, epichilio acuminato apice uncinato breviore. 
This is much the darkest of the Gongoras, the appear- 
ance of the flowers being like that of the deepest puce- 
coloured velvet. It is very nearly the same as G. atropur- 
— but the lower half of the lip is convex not concave, 
onger than the upper half not shorter, and the horns at its 
sides are very short. It was imported from Demerara by 
S. Rucker, Esq. Jun. who informs me that the smell is quite 
different from that of G. atropurpurea. 
87. SPIREA cuneifolia. Wallich cat. no. 699. (S. canescens. Don prodr. 
fl. nep. 227. DeCand. prodr. 2. 544. 
This is a pretty and very hardy shrub, found in the cold 
parts of India, and recently introduced by the Honourable 
Court of Directors of the East India Company, by whom 
seeds were given to the Horticultural Society. It forms 
H. August, 1839. i 
