Monographs Details: Bactris ulei Burret
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Description:Distribution and Ecology - Distribution. Apart from the type specimen the species was perhaps only twice collected, one collection originating from the Guayana Highland. GUYANA. Mt. Ayanganna, Pakaraima mountains, forested slopes, 550-1500 m alt, Maguire, Bagshaw, & Maguire 40599 A (NY).
Type. Ule 5283, Brazil, Amazonas, Jurua, Bom Fim (nv).
Bactris ulei is distinguished from B. simplicifrons by the hirsute undersurface of the lamina and moreover by the absence of prickles on the petiole and sheath. The cited specimen shows the typical pubescence but the leaves are somewhat larger and with prickles on the sheath which, however, cannot be considered of specific importance. Also the inflorescence is aberrant in being setose on the peduncle and having five rachillas. The fruits agree exactly with the description. Another plant studied and collected in Venezuela near the Brazilian border in the Rio Negro area at about 150 m elevation, Wessels Boer 2383 (MER, U), is intermediate. The encountered variation of these three specimens is the same as which is known to occur in the close-allied B. simplicifrons. For these reasons the cited specimens are supposed to represent B. ulei.
Distribution:Guyana South America