much shorter than the labellum, with a winged margin; and having three strong veins at its back.
P ollen-masses, according to Mr. Schomburgk’s drawing, eight, oval, equal in size.
The second species already alluded to has altogether the same peculiar habit, and was met
with in the same country. Mr. Schomburgk states that it differs in the smaller size of the pseudobulbs,
and in the sepals and petals being of - a rich crimson bordered by bright yellow ! Specimens
of this, which I have received from its discoverer, enable me to give the following specific
character :— -'
S. marginata ; petalis sepalisque undulatis obtusis, labelli lobo medio ovato acuto piano.
Considering the facility of intercourse with Guayana it may be expected that these two noble
plants, by far the finest of the order in that part of America, will not , be long unknown in our
gardens.
