of Linptey with the P. Groby, (both from Guiana,) having 
leaves more resembling the former, and flowers more ac- 
cording with the latter, but rather longer in proportion to 
the diameter. It is of larger growth than either, but, on 
the whole, I am disposed to refer it to P. Grobyz. | 
Descr. Plants growing loosely tufted, many from one 
point: each consisting of a slender, almost filiform stem, 
and one oblongo-spathulate, somewhat coriaceous Jeaf, 
from the base of which arises the peduncle, four to five 
inches long, extremely slender, almost capillary, reddish, 
bearing a distichous raceme of flowers ; the rachis zigzag. 
Flowers yellow-green, streaked with red ; upper sepal, as it 
is usually considered; ovato-lanceolate, the two side ones 
much narrower, united into one by their lower edge: thus 
the flower appears to be two-lipped. Petals very small, 
lanceolate. Lip the size of the petals, jointed on the de- 
current_base of the column, oblong, obtuse, furrowed, and 
with two small tubercles near the middle. Column as long 
as the lip. Anther sunk into the top of the column. 
Fig. 1. Flower. © 2. Flower from which the two lateral\Sepals are remov- 
ed.. 3. Column and Lip. 4, Front view of the Column :—magnijied. 
