abundant in caatinga.’’ December 13-17, 1947, R. E. Schultes & F. 
Lopez 9382. 
Oedematopus aff. O. duidae Gleason in Bull. Torr. 
Bot. Club 58 (19381) 406. 
The occurrence on Mount Chiribiquete of this element 
with Duida affinities once more stresses the phytogeo- 
graphical relationships of these two cretaceous quartzitic 
masses. 
Cotompra: Comisaria del Vaupés, Upper Apaporis basin, Macaya 
River, Mount Chiribiquete. “‘Bush, extensive and scraggly, up to 8— 
10 feet. Trunk stout. Latex weak, white. Fruits green when ripe. 
On driest, hottest exposure.’? May 15-16, 1943, Richard Evans 
Schultes 5462.—Same locality and date. ‘“‘Latex white. Scraggly 
bush. Fruit green.’’ R. EF. Schultes 5480. 
Oedematopus obovatus Spruce ex Planchon & 
Triana in Ann. Sci. Nat. sér. 4, 14 (1860) 250. 
Oedematopus obovatus was described from Spruce 2803 
collected at Ipanoré on the Rio Uaupés. It is apparently 
new to the flora of Colombia. Schultes 5515 appreciably 
extends its known range to the west. 
Cotomsia: Comisaria del Vaupés, Macaya River; vicinity of Cacchi- 
vera del Diablo and mouth of River. Alt. about 300 m.? May 1943, 
Richard Evans Schultes 5515,—Comisaria del Vaupés, Rio Negro, at 
confluence of Rios Guainia and Casiquiare, Cafio Ducuruapo (Igarapé 
Rana). “Bush. Flowers reddish.’’ December 13-17, 1947, Richard 
Evans Schultes & Francisco Lopez 9350, 
Oedematopus octandrus (Poepp. & Endl.) Plan- 
chon & Triana in Ann. Sci. Nat. sér. 4, 14 (1860) 250. 
Planchon & Triana cite the type from Peru (Poeppig 
1440) and two Spruce collections (2766 and 3321) from 
Ipanoré (Rio Uaupés) and the Casiquiare in Brazil and 
Venezuela respectively. It is now registered from Co- 
lombia, from a locality not far from Ipanoré. 
Cotoms1a: Comisaria del Caqueta, Rio Taraira, above lowermost 
rapids. ““Small tree. Flowers pink. Latex yellow.’’ July 11, 1948, 
Richard Evans Schultes & Francisco Lopez 10201. 
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