sordide albidis, intus similiter tomentellus sed basin 
versus aliquid sericeus, % pro parte in lacinias quattuor 
divisus; laciniis aestivatione valde imbricatis, ovatis, 
longe acuminatis, apice ipso acutissimis, margine integ- 
ris sed frequenter aliquid reflexis, parte latiore usque ad 
9-10 mm. latis. Corolla rosea, intus atrosanguineo- 
maculata, 85-55 mm. longa; extus maxime densissime 
albo-sericea appressa siccitate canescens, intus praecipue 
laciniarum apicem versus minutissime ferrugineo-tomen- 
tella sed maxima pro parte glabrescens, et serie pilorum 
ferrugineorum secus lineam mediam labii inferioris; ad 
basin faucis dense et grossiuscule albo-strigillosis, lobis 
adscendentibus, valde rotundatis, usualiter 15-20 mm. 
longis, usque ad 15 mm. latis. Stamina glabra, infra 
medium tubi inserta, usque ad 25 mm. longa; antherae 
7-8 mm. longae, flavae, medifixae, biloculares, siccitate 
aliquid spiraliter contortae, longitudinaliter dehiscentes. 
Stylus basi glaber, apicem versus irregulariter hirto-stig- 
matosus, apice in lamellis oblongis divisus, usque ad 88— 
40 mm. longus. Discus epigynus brevis, crassus, pilosus. 
Cotompra: Comisaria del Vaupés, Rio Guainia, Puerto Colombia 
(opposite Venezuelan town of Maroa) and vicinity, Raudal Sapo. Alti- 
tude about 800-850 feet. ‘‘Columnar tree 50 feet tall. Crown sparse. 
Flowers pink, without fragrance; dark red blotches inside throat of 
corolla, Bark green, rough. Kuripako name: oo-wd-pa. October 31- 
November 2, 1952, Richard Evans Schultes, Richard FE. D. Baker et 
Isidoro Cabrera 18222 (Tyrer or rLower in Herb. Gray). 
The flowers of Henriquezia obovata indicate a closer 
relationship with AH. verticillata and H. nitida than to 
other species, and the closest relationship seems to be 
with HZ. verticillata. The panicle of Henriquezia obovata 
is apparently smaller and with fewer flowers than that 
of H. verticillata, and the rhachis is conspicuously white- 
tomentellous instead of rusty-tomentellous. The calyx 
of Henriquezia obovata is likewise white-tomentellous 
(not rusty-tomentellous as in HZ. verticillata) and is di- 
vided for = of its length (instead of only 4 its length); 
the calyx lobes of the former species are rhombic-ovate 
[ 320 ] 
