omnibus congesto-deflexis, antheris comparate magnis, 
circiter 0.6 mm. longis; ovarii rudimentum conspicuum, 
dense villosum; discus nullus. Fructus conspicue ellip- 
soideus, vivo plusminusve 4 cm. longus, 2—2.2 cm. in 
diametro, siccitate haud minor, apice rotundato-obtusus, 
basi aliquid indentatus, in circuitu suborbicularis, epi- 
carpio nitido, atroviridi sed maturitate flavescenti, mag- 
nopere tenuissimo (vivo saepissime quam 0.8 mm. mi- 
nore), endocarpio lignoso, tenui (usque ad 1.2 mm. 
crasso), valvis regularibus, 2.5 cm. longis, 6 mm. latis; 
id 
pedunculo vulgo longissimo, gracili, usque ad 5.5 cm. 
longo, 1-1.2 mm. in diametro. Semina carunculata 
(caruncula magna, 4-4.5 mm. lata), testa rufo-brunnea, 
in circuitu longitudinali ovalis, 22 mm. longa, 12 mm. 
lata, valde compressa, 8 mm. crassa, in circuitu trans- 
versali inaequaliter rhomboidea, superficiebus duabus 
ventralibus conspicuis, carina dorsali conspicua. 
Brazit: Estado do Amazonas, Rio Uaupés, between Ipanoré and 
confluence with Rio Negro, Igarapé da Chuva, Taraqua. ‘‘Medium- 
sized tree, 70 ft. tall. Columnar, 10-12 inches diameter, not but- 
tressed. Latex very scant, thick, white. Bark smooth, thin, soft, ex- 
ternally yellowish, internally white. Flowers yellow. Fruits ripening 
yellow. Leaves chartaceous.’’ November 12, 1947, Richard Evans 
Schultes & Joao Murga Pires 9058 (Tyre in Herb. Gray).—Estado do 
Amazonas, Rio Amazonas, Tonantins. ‘‘Mata da terra firme ao longo 
d’um riachinho. Arvore grande. Flér creme. Latex escasso.’’ Feb- 
ruary 10, 1944, Adolpho Ducke 1560.—Kstado do Amazonas, Rio 
Uaupés, Igarapé da Chuva, Taracud. ““Tree 70-75 feet tall, 18 inches 
in diameter; trunk columnar, without buttresses. Bark thin, 4 cm. 
peeling easily from the cambium, externally perfectly smooth, yellow- 
ish, inside whitish, soft. Latex extremely sparse, white. Crown rather 
extensive, spreading. Leaves chartaceous, not folded along midrib. 
Flowers cream-white, odorless. Tukano name: bé-wd-puch. Fruit ripens 
yellow from tip to petiole, subtriangular in cross section, ellipsoid, 
valves coming together with definite ridge or keel-effect, apex strong 
obtuse often even indented, base strongly indented; epicarp smooth, 
glabrous, very thin (0.25 mm.).’’ November 12, 1947, Richard Evans 
Schultes & Joao Murca Pires 9048.—Same locality and date. ‘‘Tree 
60-70 feet tall, columnar, 1 foot in diameter. Bark thin, soft, smooth, 
externally yellowish, internally white. Latex white, extremely thick 
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