ers small for the genus, yellow, campanulate. Dorsal 
sepal ovate-oblong, concave, subacute, with incurved 
apical margins, about 14 mm. long and 6.4 mm. wide 
when expanded, many-nerved. Lateral sepals oblong or 
o> 6 
ovate-oblong, subacute, about 13.8 mm. long and 5.9 
g, 
mm. wide, slightly oblique, many-nerved. Petals ob- 
liquely ovate-oblong, abruptly rounded with a minute 
conical dorsal thickening at the apex, about 10 mm. long 
and 5 mm. wide, minutely ciliolate, slightly recurved 
above. Lip erect, gently arcuate-recurved with the sides 
of the lower portion erect in natural position, very shortly 
clawed, simple, ovate-oblong, lightly narrowed on each 
side above the middle with incurved margins, rounded 
at the base, broadly rounded or subtruncate at the apex, 
about 8.7 mm. long and 4 mm. wide below when ex- 
panded; dise through the basal half with an obscure 
central thickening which terminates in a conspicuous 
rounded callus in the center of the lip. Column very 
short and stout, clavate, about 6 mm. high at the back, 
produced at right angles into a prominent foot which is 
markedly shorter than the column. 
This species is allied to Maaillaria spilotantha Reichb. 
f. from Venezuela and Ecuador, but has much larger 
leaves, a quite different mode of flowering and somewhat 
smaller flowers. It appears to be very closely related to 
the Colombian MW. Sehnittert: Schlitr., but has a much 
smaller dissimilar lip. 
The specific name is in allusion to the rope-like ap- 
pearance of the stem. 
Cuzco: Prov. Quispicanchi, Marcapata, Itio to Murayaca, at 1960 
meters altitude, January 28, 1943, C. Vargas 3137 (Tyrer in Herb. 
Vargas; isotype in Herb. Ames No. 62111). 
Maxillaria graminifolia(H BAK.) Reichenbach filius 
in Walpers Ann. 6 (1868) 538. 
Tsochilus graminifolius Humboldt, Bonpland & Kunth 
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