Communicated by the Horticultural Society of London, 
who received the plant from Mr Loddiges. It produced 
flowers in the Society's garden at Chiswick in April 1824. 
Mr LoDDiGES introduced it from the West Indies. 
For the drawing and admirable description of the species 
above given, I am indebted to John Lindley, Esq. who fa- 
voured me with the following additional observations. " It is 
nearly related to Stelis pulchella of Humboldt and Kunth, 
which is a JPleurothallis also, notwithstanding the 5 divisions 
of the flower. In this genus, as in Oncidium, the greater or 
less degree of cohesion of the two anterior segments, or even 
the absolute want of it, do not constitute a generic difference ; 
and all the species referred to Stelis, which have a " labellum 
diflPorme cum columna articulatum," must be removed to Pleu- 
rothallis, whether they are tetra- or pentapetalous. The exte- 
rior segments of the perianth in this species are not connate at 
the base, but approximate. A faint but agreeable smell is per- 
ceptible in the blossoms." 
Fig. 1 . Front view of a flower. Fig. 2. Germen, Column and Lip. Fig. 3. 
Front view of the column. Fig. 4. Inside view of the anther, with its 
pollen-masses. Fig. 5. Pollen-masses removed from the anther. — All 
more or less magnified. 
