horn-like elevations towards the base of the labellum. The 
marking of the latter is nearly the same in both species. 
In the cornute processes of its labellum, O. atrata 
agrees with O. arachnites. 
We have fine specimens of this species, collected in the 
neighbourhood of Trieste, by Dr. Hornschuch, from whom 
we received it as a new species. | 
Our drawing was made in the Garden of the Horticul- 
tural Society, at Chiswick, in May 1827: the plant was 
in a pot, and had been preserved during the winter in 
a common wooden frame. 
We may here remark, that this was received by 
the Horticultural Society, from Signor Mauri, at the same 
time with several other Orchideous plants of the South of 
Europe: their roots had been dried, and then packed in 
paper, like seeds, and they have all succeeded perfectly, 
although when the roots arrived in England they were so : 
shrivelled in appearance that it was not expected they 
would have survived. It is to be hoped, that if this state- 
ment should meet the eyes of Botanists or Amateurs who 
have the means of procuring supplies of these plants from 
the South of Europe, or from Barbary, the very simple 
mode just mentioned, of transmitting them to this country, 
will be adopted. 
J ids 
