This concept is based upon two recent collections of 
complete plants which appear to be referable to A. mi- 
crotos Reichb. ft. (described only trom an inflorescence 
lacking any vegetative parts), except for the somewhat 
larger flowers with less distinctly spatulate more acute 
petals and an emarginate lip. 
Junin: Chanchamayo Valley, at 1600 meters altitude, September, 
1929, Carlos Schunke 1114.—Loreto: Upper Marafion River at mouth 
ot the Santiago River, at 160 meters altitude, in rain-forest, October 
15, 1924, G. Tessmann 4301 (‘Tyer in Herb. Hort. Berol. ), 
Epidendrum minutidentatum (©. Schweinfurth 
sp. nov. 
Herba mediocris, supra divaricato-ramosa. Caules va- 
ginis laxis celati. Folia numerosa, oblonga vel elliptico- 
oblonga vel ovato-oblonga, obtusa et mucronata, late 
patentia. Inflorescentia abbreviata, subumbellata, uni- 
vel triflora. Flores parvi, longe pedicellati. Sepalum dor- 
sale oblongo-ovatum, subacutum. Sepala lateralia oblique 
oblongo-ovata, acuta et mucronata. Petala elliptico- 
oblonga vel rhombico-lanceolata, obliqua, obtusa. Label- 
lum columnae valde adnatum; lamina concava, suborbic- 
ulari-ovata, leviter retusa, basi proftunde cordata, mar- 
ginibus conspicue denticulatis. Columna brevis, crassa, 
more generis. 
Plant medium-sized, about 24 em. or less tall. Roots 
fibrous, flexuous, glabrous. Stems slender, divaricately 
branched above, entirely or mostly concealed by loose 
tubular-infundibuliform sheaths which are chiefly leaf- 
bearing but become scarious evanescent and without 
blades in the lower portion of the stem and branches. 
Leaves small, numerous, distichous, either oblong or 
ovate-oblong or elliptic-oblong, apiculate at the obtuse or 
rounded apex, clasping at the sessile base, widely spread- 
ing, up to 8.8 em. long and 1.25 em. wide, minutely 
denticulate especially near the apex. Inflorescence a ter- 
[ 99 | 
