altitude, on heath-covered slopes, perianth orange, March 22, 1946 
C. Vargas 5935 (Typr in Herb. Ames No. 63451). 
Hvuanuco: Huacachi, near Mufia, at edge of shady thicket, at about 
2000 meters altitude, May 20-June 1, 1923, J. Francis Macbride 4076 
(the flowers of this collection are small), 
, 
The following collection, tentatively identified as this 
variety, which is vegetatively incomplete and has small 
flowers, bears the accompanying data: 
ApuriMac: near Soccllaccasa Pass, at 3700 meters altitude, in grass 
and among rocks in full sun, ‘‘average 40 em. high; dull apricot- 
yellow flower, brown pencilling ; tuberous roots,’’ November 10, 1935, 
James West 3824. 
Stelis affinis C. Schweinfurth sp. nov. 
Herba pusilla, caespitosa vel breviter rhizomatosa, 
saxicola. Caules aggregati, numerosi, graciles, vaginis 
tubulatis tribus ornati. Folium erectum, inconspicue 
petiolatum; lamina anguste elliptica vel oblongo-oblan- 
ceolata, acuta, infra sensim cuneata, chartacea. Racemi 
singuli vel tres, folium conspicue superantes, multiflori, 
super densiflori. Flores perparvi, membranacei. Sepala 
trinervia. Sepalum dorsale ovatum, acutum. Sepala lat- 
eralia paulo breviora et latiora, suborbiculari-ovata, levi- 
ter obliqua. Petala multo minora, transverse ovalia, 
supra incrassata et late rotundata. Labellum petalis cir- 
citer aequilongum sed angustius, transverse ovatum, 
apice late rotundatum; discus carina transversa bilobata 
ornatus. Columna generis. 
Plant small, slender, caespitose or with an abbreviated 
rhizome, growing on cliffs. Roots fibrous, filiform, gla- 
brous, very numerous. Stems crowded, short, slender, 
up to 6 em. long, concealed by about three close tubular 
evanescent sheaths which become longer upward. Leaf 
erect or spreading, inconspicuously petioled, 3.1—4. 4 ¢m. 
long; lamina narrowly elliptic or oblong-oblanceolate, 
acute with a minutely tridenticulate apex, gradually cu- 
[9] 
