Venezurta: Territorio del Amazonas. “‘In ripis fl. Pacimoni. Arbor 
subramosa, tenuis, 15-20 pedalis. Monoica. Flores % albi, odorati. 
Fls. 9 virides.’’ February 1854, R. Spruce 3342. 
Senefeldera contracta R. HE. Schultes sp. nov. 
Arbor usque ad sexaginta pedes alta, in sylvis crescens. 
Truncus robustus. Ramuli glabri ut videtur, cortice rufo 
obtecti. Folia valde coriacea, elliptica, petiolata (petio- 
lis robustis, 3.5-8 cm. longis, usque ad 0.5 em. in dia- 
metro), apice obtusa vel obscure acuta, basi rotundata, 
obscure biglandulosa, leviter marginata, glabra, sicco 
stramineo-fusca, nervo centrali robusto subtus valde ele- 
vato supra non conspicuo, nervis secundariis quattuor- 
vel quindecim, 28-81 cm. longa, 9.5-12.5 cm. lata. In- 
florescentiae stamineae erectae, subpaniculatim ramosae, 
19-27 cm. longae, axibus centralibus omnino glabris, 
bracteis ovato-ellipticis, magnis, 10 mm. longis. Flores 
flavi, tres staminiferi in axilla bracteolae parvae, atroviri- 
dis, suborbicularis vel subtriangularis, irregularis cum 
margine eroso-hyalino, circiter 1.7 mm. longae, 2 mm. 
latae (sed bracteolae inter se multo variabiles), perianthio 
0.5 mm. longo, obtuse trilobato, glabro, staminibus quin- 
decim minoribus, filamentis 0.1—0.2 mm. longis, liberis, 
antheris flavis, subglobosis, 0.25 mm. altis, 0.80 mm. 
latis. Fructus adhuc ignotus. 
Senefeldera contracta may be distinguished from other 
species by the very large size of the leaves, their coria- 
ceousness and high lustre on both surfaces; by the un- 
usually stout petioles; by the large number of stamens; 
and especially by the extremely contracted (not loose and 
much-branched) inflorescence. In the size of the leaves, 
Senefeldera contracta resembles 8. macrophylla Ducke, 
but the latter differs obviously from the former in the 
shape and dullness of the leaves, in the more slender pet- 
ioles and in having a long, lax and much-branched inflo- 
rescence. Like Senefeldera contracta, S. nitida Croizat is 
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