Because of its very rugose bark, however, it is harder to 
bleed than Moronobea coccinea. 
Cotompia : Comisaria del Vaupés, Rio Guainia, Puerto Colombia and 
vicinity (opposite Venezuelan town of Maroa), Alt. about 800-850 
feet. General location: Lat. 2°40’ N, Long. 67°30! W. ‘‘Flowers 
greenish white. Stigma and pistil bright green. Latex bright yellow. 
Bark thick, sealy, dark brown, corky. Tree storied. Height 40 feet. 
Diameter 14 inches. Kuripako=ma-rd-ke. Spanish=brea. Geral 
=i-rai-kee.’’ October 31-November 2, 1952, Richard Evans Schultes, 
Richard E. D. Baker & Isidoro Cabrera 18206 (Tyrr in Herb. Gray).— 
Same vicinity and date. ““Tree with storied branches. Height 60 
feet. Latex yellow. Flowers greenish white. Stigmas bright green. 
Diameter 18 inches. Bark rough, shaggy, very dark brown. Puinave= 
mim.”? Schultes, Baker & Cabrera 18210.—Same vicinity and date. 
Raudal del Sapo. ““Tree, 45 feet tall. Branches storied. Latex yel- 
low. Bark thick, corky, shaggy, dark brown. Flowers white, petals 
slightly green-tinged. Pistil bright green.’’ Schultes, Baker & Cabrera 
18221 
Moronobea riparia (Spruce) Planchon & Triana 
rar. piraparanensis R. L. Schultes var. nov. 
Arbor viginti quinque pedes alta, riparia, a J/oronobea 
riparia toliis majoribus, apice subacutis (nec late rotun- 
datis nee conspicue indentatis) atque floribus majoribus 
(petalis obliquuo-orbicularibus, 7 em. <7 em.) principal- 
iter differt. 
This new variety, like Moronobea riparia itself, is con- 
spicuous in the genus in having a curious greenish or 
greenish yellow latex. 
The collection Schultes & Cabrera 17147 is sufficiently 
distinct in its leaf and petal characters to warrant varietal 
recognition. Along the creeks and brooks emptying into 
the middle course of the Rio Piraparana, Moronobea 
riparia Var. piraparanensis is rather abundant. The Bara- 
sana and Makuna Indians of the region employ the latex 
for making torches and for caulking canoes. 
CotomsiaA: Comisaria del Vaupés, Rio Piraparand, Caio Oomoofia. 
Ca Wel A x Pe 1 A . 
Small tree on waterside. Height 25 feet. Flowers white, stigma 
green. Latex greenish yellow. Makuna= gé-hé-gi; Barasana = 6-fé-gé; 
[ 16 | 
