a soft, dense, red indumentum by having perfectly entire, 
slightly marginate leaves. It is also striking in having a 
short and very dense inflorescence. The unusually broad 
and rounded leaflets of this species and also the fully 
rounded (not flattened) fruits are distinct in the genus. 
Cotomsia: Comisaria del Vaupés, Upper Apaporis Basin, Macaya 
River, Mount Chiribiquete. Sandstone. Xerophytic conditions. Sa- 
vannah, Alt. 400-1200 ft. above forest floor or 1300-2100 ft. above 
sea-level. “‘Shrub up to 12 ft. Flowers greenish yellow. Growing on 
summit.’* January 18, 1944, Richard Evans Schultes 5744. (Tyrr in 
Herb. Gray).—Same locality. ‘‘Small tree. Fruit yellow.’’ May 15- 
16, 1943, Richard Evans Schultes 5457. 
POLYGONACEAE 
Triplaris Pavonii Messner in DC. Prodr. 14 
(1856) 172. 
This widely distributed tree is one of the commonest 
species on floodable river-banks in the upper Apaporis 
River drainage-area. 
CotomsiA: Comisaria del Vaupés, confluence of Macaya and Ajaju 
Rivers, Puerto Hevea. Alt. about 300 m. ““Bracts of calyx red. Tree.’’ 
July 1943. Richard Evans Schultes 5576. 
LEGUMINOSAE 
Cynometra Zamorana RP. EL. Schultes sp. nov. 
Arbor magna et robustissima, usque ad centum pedes 
alta. ‘Truncus columnaris, duo pedes in diametro, brun- 
neo cum cortice crasso. Foliola unijuga, obliqua, ellip- 
tica, apice breviter cuspidato-acuta, basi cuneata, saepe 
obscure marginata, coriacea, supra nitidissima, infra ni- 
tida, viridia, utrinque glabra maxima pro parte 13.5 em. 
longa, 5—5.5 cm. lata; venae secundariae saepissime quin- 
decim vel sedecim, supra non conspicuae sed infra valde 
elevatae, nervo centrali rufo; petioli crassiores. Racemi 
axillares, foliis saepius aequales, minutissime villosi pubi 
molli patenti, rhachide robusta, 6-7 cm. longa, pedi- 
[ B01 ] 
