tepals, oblong, with an angular tooth on both sides, ciliated 
towards and at the apex, a fleshy triangular keel on both sides 
from the base to the disk. Colwmmn slender, trigonous; andro- 
clintwm with a five-toothed membranous border; rostellum trans- 
verse above the stigmatic hollow ; anther gibbous. Flowers orange, 
the lip more ochraceous-red. 
Materials :—Sketch and description from the living plant in 
the Saundersian garden; inspection of Dr. Lindley’s herbarium ; 
one specimen in my herbarium. 
Tab. 142.—Plant. 1, flower and part of spindle + ; 2, flower, front 
view +; 8, flower, oblique back view + ; 4, flower, sepals and tepals 
cut +; 5, the same, sepals cut +; 6, hp +; 7, column, side 
view +. The figures 6 and 7 given by Professor Reichenbach, who 
did not see the keels of the lip crenulate, as represented by the 
artist. 
This Pleurothaliis, with lovely yellow flowers, came from the 
Salween, and was supplied to me by Mr. Bartlett. It should be 
erown on a block, in the warm part of the temperate house, with 
a little moss.— W. JV. S. 
