This shrub, recently cited from the Vaupés of Colom- 
bia (Schultes in Bot. Mus. Leafl. Harvard Univ. 13 
(1949) 309), is known by the name solimdn in all parts 
of Amazonian Colombia. The bark is employed by the 
Indians of the Putumayo to bind on the arms for cica- 
trization. It contains a principle which blisters the skin, 
leaving a brown stain which lasts for several months. 
As shown in the illustration (Plate XVIII), Durota 
hirsuta, which usually possesses nodes inhabited by ants, 
grows in small colonies in the jungle. Where these col- 
onies occur, no other plants, save a few ferns and Selag- 
inella can live. 
Cotompia: Departamento del Cauca, Puerto Limon, bosques en el 
lado caucano del Rio Caquetd. ‘“‘Solimdn. Small tree. Bark, when 
tied on arm, forms blisters.’’ February 28, 1943, Richard Evans 
Schultes 3330. 
Duroia petiolaris Hooker filius in Martius F1. Bras. 
6, pt. 2 (1889) 364. 
It appears that Duwrota petiolaris, which is not uncom- 
mon in the trapecio amazénico, has not hitherto been 
recorded from Colombia. 
Cotompr1a : Comisaria del Amazonas, Rio Loretoyacu. ‘‘Bush. Flow- 
ers white.’’ October 20-30, 1945, Richard Evans Schultes 6727. 
Retiniphyllum pilosum (Spruce) Mueller-Argo- 
viensis in Martius F]. Bras. 6, pt. 5 (1881) 7. 
The type of Retiniphyllum pilosum was collected by 
Spruce at San Carlos on the Rio Negro of Venezuela. 
It is acommon, though localized, element of the caatingas 
of the uppermost Rio Negro basin of Brazil, Colombia 
and Venezuela. 
Brazi.: Estado do Amazonas, Rio Negro, Jucabi (at mouth of Rio 
Curicuriari) and vicinity. “‘Bush. Flowers white. Fruit red.’’ Janu- 
ary 17, 1948, Richard Evans Schultes & Francisco Lopez 9633. 
Gia 
