- 15 - 
Pittier (33C) in 1328 describee! the folio-,; in-- species of Lonchocarpus 
growing in Venezuela: L. atr^p urpu-"cus Tenth. , L. crncis- rubiorao Pittier, 
L. dorslflorus Tertn, , L. dipteroneurus Pittier, L. f crdleri Benth. , L. guar - 
icensis Pittier, L. larorisis Pittier, L. l n -tifollus (Willd. ) H.B.K. , L. l utcs - 
cens Pittier, L. macro carpus Bcnth. , L. nirandinus Pittier, L. negre nsj s 
Bcnth,, L. ni tidulus Don'th, , L, pictus Pittier, L. punc t a bus E . B . I . , L. s er- 
ic cus E.B.K, , L. stonopterls Pittier, L, otcnurus Pittier, L. st rani nous 
Pittier, and I. vioiaceus ( Jacq. ) H.B.h. 
In Grleason 1 s (166) account of "botanical explorations in the region of 
Mt. Duida, Venezuela, A. C. Snith has a description of Loncho c arpus urucu 
Killip and Snith. It is called barbasco and used to poison fish. The species 
is so far known only fron Gurupa, ir. the state of Para, "but is to bo ex- 
pected along tributaries of the Anazoi and Negro, 
Pulle (338) in 1933 discussed the botany cf Lonchocarpus c hrysophy] lus 
Kleinh, and L. hedysonus Hiq. 
According to Klein (244) Eobinia nicou - Lonchocarpus rufescens , 
Silva (375) in 1935 published an illustration of Tinhc vcmclho 
(= Lon cho carpus urucu) . 
Martyn and Foil ett- Smith (271) in 1936 recorded that the following 
species of Lonchocarpus used as fish poisons have been reported fron British 
Guiana: L. nicou (Aubl.) DC, L. ■-"'unsiflorus Benth. and L. rariflorus Hart, 
Stahl (393) in 1935 published inform .tion on the "botany, synonymy 
and distribution in the Antilles of 1. lat ifolius E.B.K. and L. violaceus 
E.-J.L. 
The Kow Eoyal Botanic Gardens (241) in 1936 described Lonchocarpus 
hintoni Sandwlth as a new spocios fron Mexico. It is a 3C-foot tree with 
blue or pink flowers, 
Krukoff and Smith (255) in 1937 reported a study of ten species of 
South American rotenone-yielding plants including three new species (Lo ncho - 
carpus syl v e s tr i s , _L. Martynii , and L. utilis) , with special reference to 
native names, distribution, economic inportanco, and specimens examined. 
Descriptions and comparisons of foliage are sufficiently- complete to permit 
the identification of sterile material. Totes of use to field workers have 
been incorporated. The species concornet" 1 , dor the most part, belong to the 
leguminous genus Loncho c arpus , Series Fasclcuinti . Other species described 
are L. floribund us Tenth. , L, rarifloru s Hart. , L. urn cu Killip and Snith, 
L. chrysophyllus Kleinh, , and three unknown species of Lonchocarpus. Dcrris 
anazonica Eillip (.L. negrensis Tenth. ) is also doscribed. 
A leguminous plant collected in Anazenn? and I'.Iattc Grosso, Brazil, 
contained an average )f 0.6 percent rotcr.onc in the root. This plant known 
locally as Tinbo vermelho and Tinbo nelancia, does not belong to Lonchocarpus, 
Derris, Tephrosia or Oroocarpun. The bulk of cube or barbasco roots exported 
