angulo 60° a costa abeuntibus, inter se 8-12 mm. distan- 
tibus et in nervum collectivum medio a margine 2-3 mm. 
remotum. Pedunculus ad 42 cm. longus, 8 mm. in dia- 
metro. Spatha lanceolata, 8 cm. longa, 1.5 cm. lata, apice 
acutiuscula, viridis. Spadix viridis, sessilis, usque ad 16 
cm. longis, 15-17 mm. in diametro. ‘Tepala omnino 
albido-pulverulenta, circiter 2 mm. lata, 4 mm. longa. 
Pistillum rufum, ovoideum, 4 mm. longum, 8 mm. in 
diametro. 
Anthurium apaporanum appears to be nearest to the 
complex of 4. Harrisit (Grah.) Endl., but several differ- 
ences in floral structure and in relative size of the vege- 
tative parts would suggest that the two concepts are best 
considered as distinct. In many of its vegetative charac- 
ters, Anthurium apaporanum likewise resembles A. na- 
paeum Kingl., but the two are easily separated by floral 
differences. 
CotompiA: Comisaria del Vaupés, Rio Kananari, Cerro Isibukuri. 
On sandstone cliffs. ‘‘Spadix and spathe green.’’ August 4, 1951. 
Richard Evans Schultes & Isidoro Cabrera 13335 (Tyre in Herb. Gray). 
Anthurium nanum PR. EF. Schultes sp. nov. 
Herba epiphytica. Caudiculus crassus, internodiis ab- 
breviatis. Folia subcoriacea, petioli strictissimis, crassis, 
teretibusque, sulcatis, usque ad 2.5-3.5 cm. longis, 0.5 
mm. in diametro, lamina pallide viridis, glabra lineari- 
lanceolata, apice acuminata, basi longe cuneata, margine 
inconspicue et leviter revolta, 6.5—7 cm. longa, 8-10 mm. 
lata, nervis crassioribus, utrinque prominentibus. Spatha 
membranacea, triangularis, apice crasso-apiculata, utrin- 
que albido-pulverulenta, rosea, 9 mm. longa, basi 8-8.5 
mm. lata, vivo reflexa. Spadix sessilis, cylindricus, apice 
truncatus, 11-12 mm. longus, plusminusve 2 mm. in 
diametro, rufo-purpureus. 
It would appear that Anthurium nanum, set apart be- 
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