naceous lip rigidly attached to the base of the column, 
and a column without either wings or foot. 
We have named this little species for an assiduous 
collector of Peruvian plants. 
Cuzco: Ceochapampa, at the height of Ccochayoc, at 1000 meters 
altitude, February 21, 1931, C. Bues s.n. (Type in Herb. Field Mus. 
No. 660010). 
Xylobium latilabium C. Schweinfurth sp. nov. 
Herba magna, epiphytica ut videtur. Pseudobulbus 
oblongo-pyriformis vel cylindraceus, unifoliatus. Folium 
conspicue petiolatum; lamina oblanceolato-oblonga, 
abrupte acuta, cum nervis tribus conspicuis; petiolus 
longus, gracilis. Inflorescentia crassa, erecta, brevis, 
supra densius racemosa, cum floribus grandibus luteis. 
Sepalum dorsale lanceolato-oblongum. Sepala lateralia 
multo majora, obliquissime triangulari-ovata et falcato- 
decurva, dorso superne carinata. Petala oblongo-lanceo- 
lata, sepalis minora. Labellum columnae pedi adnatum, 
prope apicem trilobatum, in positu naturali tubulari- 
concavum, cum lobis lateralibus semiobovatis erectis; 
lobus medius subquadratus vel ovato-subquadratus, latior 
quam longior; discus callo centrali oblongo apice lobu- 
lato percursus et lineis verrucosis ornatus. Columna per- 
brevis, in pedem longum extensa. 
Plant large, apparently epiphytic. Rhizome stout, 
woody, only a fragment present in our specimen. Roots 
fibrous, glabrous, stout. Pseubobulb oblong-pyriform or 
cylindric, striate-suleate in the dried specimen, unifoli- 
ate, about 6.5 em. long. Leaf conspicuously petioled ; 
lamina oblanceolate-oblong, rather abruptly acute, long- 
cuneate below, with three nerves very prominent be- 
neath, about 43 cm. long and 7.8 cm. wide above the 
middle, chartaceous; petiole slender, deeply channelled, 
subterete below, about 10 cm. long. Inflorescence short, 
stout, erect, about 15 cm. high (separated and incom- 
[ 155 
