data, integra 5-nervia nervis duobus exterioribus sub- 
marginalibus debilioribus nervis primarlis secundarlisque 
supra leviter angusteque impressis subtus bene elevatis 
nervulis supra obscuris subtus paulo elevato-reticulatis, 
supra glabra et nitidula, subtus in superficie glabra in 
nervis sparse furfuraceis. Inflorescentia 4—5 cm. longa 
pauciflora, floribus 5-meris fasciculatis. Pedicelli 4-7 mm. 
longi cum hypanthio calyceque setulosi, setis crassis (ad 
basim 0.8 mm. diam.) usque ad 1.5 mm. longis minute 
tuberculatis. Hypanthium (ad torum) 74-5 mm.; 
calyx in alabastro clausus 9 mm. longus conicus ad an- 
thesim ad torum dehiscens. Petala 20X18 mm. apice 
oblique rotundata. Stamina isomorphica; filamenta 6 
mm. longa; thecae 7 mm. longae subulatae, connectivo 
basi non prolongato dorsaliter calcarato calcari acuto 1.6 
mm. longo. Stylus ca. 14.0.5 mm. ; stigma truncatum ; 
ovarium 5-loculare glabrum apice in collum 1.3 mm. 
altum circum stylum protractum, collo apice breviter 
(0.2-0.8 mm.) 10-lobato. 
Spruce 4840 (KK), the type collection of Centronia 
reticulata, has been compared with C. vaupesana. The 
Peruvian species has striking upper leaf surface venule 
reticulation, 3-nerved leaf blades with no trace of fourth 
and fifth veins, slightly larger flowers, and (despite 
Cogniaux and Triana’s ‘glabrous’ descriptions) the ovary 
apex sparsely puberulous with slender brown hairs to 0.3 
mm. long. Centronia laurifolia D. Don is another possi- 
ble relative, but its leaves are larger and 3-plinerved, the 
flowers ‘subsessile,’ and the ‘subacute’ petals only 1 em. 
long. 
Cotomsra: Comisaria del Vaupés, Rio Piraparand, Raudal Na-hoo- 
gaw-he. ‘*Spindly tree 8 m. tall. Flowers white. Maku name: ka- 
nang.’? August 30, 1952. Richard Evans Schultes & Isidoro Cabrera 
17100 (Tver in Herb. N.Y. Bot. Gard. ). 
[ 161 | 
