latis, bracteolis parvis, linearibus. Flores formosi fra- 
grantesque,ad 28 mm. longi; calyx dense fulvo-velutinus, 
10 mm. longus, tubo 4-5 mm. diametro, laciniis 5 mm. 
longis; petala purpurea, glabra, vexillo stipitato-orbicu- 
lare, 17 mm. longo, 13-14 mm. lato, lateralibus vel alis 
18 mm. longis, 5-6 mm. latis; carina minore; staminibus 
alternate subaequalibus, 12 mm. longis; ovario elongato- 
ovoideo, pubescente, 9 mm. longo, 2-8 mm. lato. Fruc- 
tus dehiscentes, extus rugosi, sublignosi, nigro-fulvi, 8-5 
em. longi, 2-8 em. lati, valvis ad 2 mm. crassis. Semina 
1 vel 2, bicolora, coccinea sed } pro parte nigro-maculata, 
12-13 mm. longa, 10 mm. lata, 6-7 mm. crassa, hilo 3 
mm. longo. 
Cotompia: Comisaria del Amazonas, mouth of Rio Loretoyacu, Tra- 
pecio Amazénico. Alt. 100 m. *‘Common name: chocho. Height 55 
feet. Calyx brown. Petals white and lavender. Stamens white. Flow- 
ers with odour of citronella, strong. Bark smooth, grey-brown. Seeds 
highly alkaloidal; leaves, twigs only slightly so.’’ September 13-15. 
Richard Evans Schultes, Robert F. Raffauf § Doel Soejarto 24107. (Type 
in Herb. Gray; Durticarr types in Econ. Herb.; Herb. Nac. Col. ; 
U.S. Nat. Herb.). 
Same locality. “‘N.v. cairuro. Arbol de 12m. Semillas rojo y negro. 
Alealoides —muy positivo en las semillas; corteza negativa para alca- 
loides.’’ October 10, 1961. J. M. Idrobo 4732. 
Same locality. ‘‘Arbol de unos 20 m. de alto. Inflorescencias de 
color café. Prueba de alealoides++-+-’’. August 21, 1964. 4. Fernandes- 
Peres 6882. 
This variety may represent a western variant of Ormo- 
sia amazonica. The species itself is distributed in the 
central part of the Amazon. There are several minor 
differences in the size of flowers and floral parts, the shape 
of the base of the leaves, the general texture of the leaves 
and the density of leaf-indumentum and in habit of the 
plant, and these would seem to justify its recognition as 
a distinct subspecific concept. 
All three of the collections cited above were made 
from the same tree which has been under surveillance 
( 272 | 
