Mr. Cooper obtained from Liverpool, and always retaining 
its characteristic form and rich and deep purple colour. 
Its nearest affinity is with Bieria verecunda, (Limoporum 
altum, Bot. Mag. t. 930, not of Jacq. Ic. Rar. t. 602,) but 
there the flowers are much smaller, greatly shorter in pro- 
portion to the size, very gibbous or almost spurred at the 
base, the sepals much more patent, and very pale on the 
outside, and the lip has a white margin: the leaves, too, 
are much narrower. 
Our plant has been cultivated by Messrs. SHeruerps, 
under the name of “ Limoporum tuberosum,” from an idea, 
perhaps, that it was the “ L. altwm vel tuberosum of Jac- 
quin.” But that plant I have endeavoured to prove is the 
same with our Bueria acutipetala (Tab. 3217); and the 
name tuberosum being equally applicable to other species 
of the Genus, I am anxious it should bear the name of 
the Messrs. Surrnerp, uncle and nephew, who have culti- 
vated the Orchideous as well as other plants with so much 
success, and who have paid particular attention to the spe- 
cies of the present Genus. 
Descr. ‘The general mode of growth in this is very 
similar to that of B. verecunda and B. acutipetala. The 
leaves are a foot and a half long, broadly lanceolate, taper- 
ing much at both extremities, plaited and striated. Scape 
two or three feet high, branched. Flowers both within and 
without of an uniform, deep purple colour, except the co- 
lumn, which is pale, and the lamella of the disk of the lip, 
which are dirty yellow. All the segments of the perianth 
are erect, spreading only at their extremity, which becomes 
quite erect again when the flowers begin to fade. 
Fig. 1. Lip. 2. Column. 3. Summit of the Column, the Anther (fig. 4.) 
being removed. 5, Pollen-masses —magnified, 
