Monographs Details: Siphoneugena densiflora O.Berg
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.
Description:Distribution and Ecology - V E N E Z U E L A . Bolivar: Chimanta Massif, Abacapa-tepui, elev 1110-1200 m,18 Apr 1953 (fr), Steyermark 75128 ( M I C H ) ; Altiplanicie de Nuria, Cerro El Picacho,elev 620 m, 3 Feb 1961 (imm fr), Stevermark 89009 (MICH)'- Angel Falls5 Apr 1950 (fr), Kunhardt 23 ( N Y ) .


Marlierea dussii Krug &\]rh. exVrh., Bot. Jahrh. 19: 590. 1895.

Plinia fruticosa Steyerm., Fieldiana Bot. 28: 1023. 1957.

Siphoneugena densiflora var tepuiensis Steyerm., Fieldiana Bot. 28: 1024. 1957

For description, citation of specimens and additional synonymy see Mc\'augh (Fieldiana Bot. 29: 509. 1963). As broadly interpreted, this species ranges from the Lesser Antilles to Venezuela; the type was from somewhere in southern Brazil. In the mountains of the Guayana Highland it has been collected at an elevation of about 1500 m on Serrania Yutaje and 1600 m on Cerro Sipapo; on the Chimanta Massif at elevations ranging from about 1900 to 2100 m (see also below); on Ptaritepui at 1700-1800 m, and Sororopan-tepui at about 2250 m.

As pointed out in the article cited above, there seem to be local populations of Siphoneugena densiflora, partly but not wholly localized, distinguished subjectively by minor differences in leaf-form and pubescence. Only the following, easily recognized at sight by its very narrow leaves and its long narrow flowers, seems to deserve any formal nomenclatural recognition:

Distribution:Venezuela South America|