florescentia spicata, multiflora, congestiflora. Sepalum 
dorsale lanceolatum, acutum, leviter cochleatum. Sepala 
lateralia linearia vel lineari-lanceolata, obtusa vel acuta, 
leviter arcuata. Petala anguste elliptica, semilunata. La- 
bellum lineari-oblongum et panduratum vel lanceolato- 
subpanduratum, obtusum. 
Slender, erect, terrestrial herbs, 3-5 dm. tall. Stems 
covered with white, scarious, amplexicaul, striated, mar- 
cescent bracts. Leaves withering before anthesis, appar- 
ently up to about 12 cm. long and 8 em. broad, elliptic, 
basal or on the lower part of the stem. Inflorescence a 
compact, many-flowered spike; bracts 0.7—1.5 mm. long, 
lanceolate to ovate-lanceolate, acuminate or acute, striate- 
nerved. Dorsal sepal 4.5-6 mm. long and 1—1.5 mm. 
broad, lanceolate, acute, slightly cochleate, 3-nerved, 
pubescent dorsally. Lateral sepals 4.5-6 mm. long and 
1-1.5 mm. broad, linear to linear-lanceolate, obtuse or 
acute, slightly arcuate, obscurely 8-nerved, pubescent 
dorsally. Petals 4-6 mm. long and 0.8-1.2 mm. broad, 
narrowly elliptic, semilunate, 1-nerved, lightly adnate to 
the dorsal sepal. Lip 5.5-6.5 mm. long and 2-3.5 mm. 
broad, from linear-oblong and pandurate to lanceolate- 
subpandurate, obtuse, apex sharply recurved, inconspic- 
uously articulate at the base. Column about 3-3.5 mm. 
long. 
Mexico: in black soil between rocks in scanty oak forest, Mt. Toro, 
west of Jaleaca, State of Guerrero, longitude ca. 99°38’ west, latitude 
17°23! north, altitude 1700 m., February 27, 1943, Juan G. [onzdles] 
3270; stone fence, San Lucas, district of Temascaltepec, State of Méx- 
ico, April 28, 1935, Hinton 7653; in loamy soil in oak-pine forest, 30 
km. southwest of Miahuatlin (de las Flores), State of Oaxaca, longi- 
tude 96°41’ west, latitude 16°12’ north, altitude 2300 m., March 28, 
1934, Nagel 3717; in oak woods, Cerro San Felipe, State of Oaxaca, 
March 24, 1934, Nagel 3743 (Tyrer in Herb. Ames No. 51220); in 
loamy soil in oak-pine forest, Cerro San Felipe, State of Oaxaca, 
March 21, 1934, Nagel 3759; in loamy soil on grassy exposed slopes, 
mountains southeast of Ayntla Pifion, State of Oaxaca, longitude 96° 
04’ west, latitude 16°59’ north, April 5, 1934, Nagel 3787. 
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