mm. longum, glabrum vel apice setis parcissimis minutis 
donatum. Pedicelli subcapillares, 12-20 mm. longi, 
dense scabro-hirsutuli, pilis hamatis instructi. 
Dr. Cuatrecasas writes: ‘*‘Cecropia mocoana is closely 
related to C. marginalis Cuatr. and C. discolor Cuatr. 
From both, it differs in having leaves which are a little 
thinner and more abundantly pubescent on the upper 
surface and in having more conspicuous scales (small 
conic hairs) which cause the leaves to be rough. The 
leaves on the under surface are more like those of C. 
marginalis because of the nerves and venation which are 
more or less hirtose and not covered with arachnoideous 
tomentum; in C. discolor the arachnoideous tomentum 
is brightly white and covers the network. The spathes 
of Cecropia mocoana are densely villous-hirsute as in C. 
discolor (in this species they are glabrous or only puberu- 
lent inside, contrary to the statement in the original de- 
scription), whereas in C. marginalis they are covered 
with a very short and obsolete tomentum. Only further 
abundant collections can indicate whether Cecropia mo- 
coana represents a male specimen of one of these earlier 
species, ”’ 
Cotoms1a: Comisaria del Putumayo, Mocoa, alrededores al norte, 
750-850 m. ‘‘Small tree.’? December 38-7, 1942, Richard Evans 
Schultes & C. Earle Smith 2003 (Tyre in Chicago Museum). 
Cecropia porvenirensis Cuatrecasas sp. nov. 
Arbor magna. Ramuli seabri, pilis conicis et longiori- 
bus hamatis satis instructi. Folia membranacea vel sub- 
coriacea, peltata. Petiolus 32 em. longus, juvenilis albo- 
arachnoideus, deinde hirtus, pilis longis tenuibus rigidis 
patentibus inferne hamatis tantum ramanentibus. La- 
mina palmata profunde (2/38) 7-vel 6-lobata, lobis obo- 
vatis vel obovato-oblongis, basi constrictis, apice abrupte 
acuminatis, margine integra vel leviter irregulariterque 
[ 25 ] 
