sap. Branchlets subterete, obtusely angled, striate, fer- 
ruginous, minutely pulverulent-puberulent becoming 
almost glabrous, with circinate tendrils which become 
woody. Leaves usually 5-foliolate. Axes exalate, 4-sul- 
cate, strong, ferruginous, slightly puberulent. Leaflets 
elliptic (the upper obovate, obtusely acuminate, the 
lower rotundate), 15-25 cm. long, 8-11 cm. wide, entire, 
coriaceous-chartaceous, glabrous on both sides, clathrate- 
nerved with seven to nine nerves. Inflorescence axillary, 
racemiform, many-flowered, circinate. Pedicels minutely 
hirtellous, with very small bracts which are acuminately 
linguiform or triangular-subulate. Sepals five; the outer 
two subcoriaceous, externally tomentulose, internally 
glabrous, almost oval, apically rounded with a villose- 
ciate margin; the inner three larger, membranaceous, 
rounded, internally glabrous. Petals four, submembrana- 
ceous, entire, obovate, internally minutely pilose. Sta- 
mens eight, not exserted, with strong complanate fila- 
ments which are covered with white woolly hairs. Ovary 
globose and glabrous with a fleshy style and a trifid stig- 
ma. Fruit subdrupaceous, red when ripe, obliquely ovoid, 
rostrate. 
SPECIMENS EXAMINED: 
Cotoms1a: Comisaria del Putumayo, Rio Putumayo, Puerto Ospina, 
15 kilometros adentro en la trocha Puerto Ospina—Puerto Asis; alt. 
ca. 300 m., 6 julio, 1942, Richard Evans Schultes 4028 (Tyre in Econ. 
Herb. Oakes Ames Nos. 10432 and 10433, sheets I and I]; Dupti- 
cATE TYPEs in Herb. Nac. Colomb.; U.S. Nat. Herb. ; Herb. Gray). 
Comisaria del Putumayo, Umbria, 0° 54/ N., 76° 10" W., alt. 325 
» forest, January-February 1931, G. Klug 1933, ““blanco yoco”’ 
(U's . Nat. sae No. 1518079); same locality and date G. Klug 1935, 
‘huarmy yoco,’’ (U.S. Nat. Herb. No. 1518082). 
The following sterile specimens have been examined 
and found to be referable to Paullinia Yoco 
Comisaria del Putumayo, Rio Putumayo, Pifiuna Gan, alt. 240 m., 
diciembre, 1940, J. Cuatrecasas 10708 (Herb. Nac. Colomb.; U.S. 
Nat. Herb. ). 
