often fleshy-thickened, truncate or nearly so at the base. 
Column short, stout, obtusely 8-toothed at the apex, 4 
mm. long, produced at the base into a broad elongated 
foot; column-foot 4—4.5 mm. long. 
This species is best distinguished from P. striata, with 
which it has been confused, by the distinctly pedunculate 
fleshy-thickened flowers which are subtended by small 
inconspicuous bracts instead of large bracts as in P. striata. 
Furthermore, the flowers are marked with dull purple, 
whereas those of P. striata are marked with bright purple 
or lavender. The lip which is provided with a slender claw 
has a subquadrate lamina. The lamina is truncate or sub- 
truncate at the base rather than cuneate-oblong as in P. 
striata. 
Mexico: Chiapas, forests above Santa Maria de los Arcos, E. of 
Comitan, on oak trees, fls. tawny with violet stripes and designs, about 
1500 meters alt., October 24, 1938, Otto Nagel 4469 (Herb. Ames); 
Chiapas, oak-pine-Liquidambar forests on shore of Lake Montecello, 
epiphyte in humid forest, fls. yellow-green with heavy dull purplish 
marks and veins, 1350 meters alt., March 1935, Otto Nagel 4482 
(Herb. Ames); Chiapas, mountain forests above Hacienda Santa Maria 
de los Arcos, on old oak trees, E. of Comitan, fls. dull yellowish with 
dull purplish streaks and veins, 1450 meters alt., November 20, 1937, 
Otto Nagel 5655 (Herb. Ames); Pueblo, near Necaxa, fls. yellow-green 
with dull purplish veins, about 1000 meters alt., September 21, 1933, 
Erik Hultén 1467 (Herb. Ames); Vera Cruz, on old walls and cliffs, 
near Orizaba, January 23, 1895, C. G. Pringle 5919 (Tyrer in Herb. 
Ames No. 3491); Vera Cruz, near Jalapa, 1400 meters alt., Septem- 
ber 29, 1933, Erik Ostlund 1466 (Herb. Ames); Vera Cruz, Mt. San 
Cristobal, S. W. of Orizaba, very humid mixed forest, on trees, fls. 
yellow-green with dull purplish veins and marks, 1500 meters alt., 
October 12, 1933, Otto Nagel 2522 (Herb. Ames); Vera Cruz, Zacu- 
apan, March 1913, C.A. Purpus 6454 (Herb. Ames); Vera Cruz, Za- 
cuapain, January 1913, C. A. Purpus 6623 (Herb. Gray, U.S. Nat. 
Herb.); Vera Cruz, on trees, Zacuapin, November, C. A. Purpus 10502 
(U.S.Nat. Herb.); Vallée de Cordova, January 10, 1866, M. Bourgeau 
1766 (in part) (Herb. Ames, U.S. Nat. Herb.). 
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