ilar lip and in having an apically much thickened spur. 
Apurtmac: Prov. Abancay, upper Rio Marino, at 3000 meters alti- 
tude, in humus, in grassy area between shrubs, flowers pale yellowish 
green throughout, February 15, 1939, H.F.Stork, O.B.Horton & C. 
Vargas 10645,.—Cuvuzco: Ollantay tambo, at about 3000 meters altitude, 
May 13, 1915, O. F. Cook & G. B. Gilbert 709, (Typr in U.S. Nat. 
Herb. No. 603897). 
Chloraea densipapillosa C. Schweinfurth sp. nov. 
Herba robusta, terrestris. Caulis crassus, teres, foliosus, 
foliorum vaginis maxima pro parte celatus. Folia ovata, 
elliptico-ovata vel lanceolato-elliptica, amplexicaulia, 
acuta, in vaginas foliaceas supra decrescentia. Inflores- 
centia brevis ut videtur, dense vel laxe pluriflora. Flores 
pro genere mediocres. Perianthii segmenta reticulata. Se- 
palum dorsaleovato-lanceolatum, acutum. Sepala lateralia 
similia, obliqua, acuminata. Petala ovalia, apice late ob- 
tusa vel rotundata. Labellum unguiculatum; lamina 
oblongo-ovata, pandurata, leviter trilobata, lineis papil- 
losis congestis maxima pro parte obtecta; lobi laterales 
parvi, semiobovati; lobus medius ovatus vel oblongo- 
ovatus. Columna utrinque alata. 
Plant robust, terrestrial, up to about 54 em. tall. Stem 
stout, terete, leafy, entirely or mostly concealed by the 
leaf-sheaths, about 1 cm. in diameter at the base. Leaves 
numerous, ovate, elliptic-ovate or lanceolate-elliptic, 
amplexicaul and sessile, extended at base into a closely 
clasping sheath; lamina up to about 9.4 cm. long and 
4.7 ecm. wide (often much smaller toward the base), 
gradually diminishing above into strict foliaceous sheaths, 
acute or acuminate, membranaceous in the dried speci- 
mens, many-nerved. Inflorescence loose to rather dense, 
up to about 19-flowered, up to about 21.5 cm. long and 
10 cm. in diameter in the dried specimens. Floral bracts 
ovate-lanceolate, acuminate, nervose, surpassing the ped- 
icellate ovary at the base of the raceme. Flowers medium- 
[ 55 
