acute, somewhat longer beneath the lip. T'epals ligulate-acute, 
a little shorter. Lip with immobile claw ascending from the foot 
of the column, trifid; lateral lacinie triangular, erect, small; 
middle lacinia ligulate, acute; a transverse crescent-shaped callus 
between the lateral lacinie, behind it a nectarifluous hollow. 
Column clavate, often excised near the stigmatic groove; rostellum 
lengthened. Anther mitrate. Pollinia spherical, with a slit behind 
on their base, incumbent in pairs. Caudicle ligulate. Glandule 
ovate. 
Materials :—Various sketches from living flowers; the living 
plant in Hamburgh Botanic Garden; nineteen herbarium speci- 
mens. 
Tab. 105.—Plant. 1, flower, with peduncle, side view + ; 2, flower, 
front view +; 8, flower, side view, sepals and tepals cut; 4, lip, seen 
obliquely +; 5, column, front view +; 6, pollinarium, oblique side 
view +. 
—— 
The flowers of this Ornithidiwm are produced abundantly upon 
healthy plants, and have a pleasing effect. It grows freely when 
placed on a block or potted in spongy peat, and requires a cool 
stove treatment. I received plants of this species from Trinidad, 
and I procured it also from a collection said to be from Vera 
Cruz.—W. W. S. 
