but there is a town of Zacualpan in the mountainous district 
of Mexico, about 65 miles 8.8.W. of the capital. : 
O. stramineum belongs to a small section of the genus, and 
according to Lindley, is easily recognised by its rigid un- 
spotted leaves, nct keeled at the back ; its flowers have a faint 
primrose odour. The specimen here figured first flowered at 
Kew in May, 1866, when the accompanying drawing was — 
made. 
Descr. Pseudobulbs none. Leaves six to eight inches long, 
oblong-lanceolate, subacute, contracted into a short stout 
petiole, very rigid, thick and coriaceous, uniformly deep 
green, hardly keeled at the back, which is rounded down 
the middle line, and not acute at all. Panicle stout, in- 
clined to drooping, more or less branched ; peduncle short, 
stout ; flowers crowded ; pedicels and ovary together half an 
inch long, slender; bracts minute. Flowers three quarters of 
an inch across, white speckled with red on the lateral sepals, 
lip, and column, Sepals and petals widely spreading, almost 
orbicular, crisped, fleshy, dorsal sepal concave. Lip very 
shortly clawed; lateral lobes. oblong, obtuse, faleately re- 
curved, with the upper margin recurved; middle-lobe, 
shortly broadly stipitate, kidney-shaped, smaller than the 
lateral lobes ; warts on the disk, 2 on each side, more or less 
confluent in pairs. Column short, with broad wings.—J. D. H. 
Fig. 1, Flower ; 2, the same with sepals and petals removed :—both enlarged. 
