Monographs Details: Phyllanthus obfalcatus Lasser & Maguire
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Euphorbiaceae
Description:Distribution and Ecology - Slender branched shrub confined to high altitudes (1400-2200 m) of Amazonas, Venezuela. VENEZUELA. Amazonas: Cerro Comani, Cano Gua-vianto, Rio Manapiare, Rio Ventuari, occasional in upper mountain woodland, alt 2200 m, 17 Feb 1951, Maguire, Phelps, Hitchcock & Budowski 31818 (no fl., no fr. NY) ; summit Cerro Comani, occasional in exposed rocky thickets, alt 2200 m, 17 Feb 1951, Maguire, Phelps, Hitchcock & Budowski 31830 ((male), (female) fl. NY); Serrania Yutaje, Rio Manapiare, rocks only, occasional Cano Yutaje, right branch, alt 1400 m, 9 Feb 1953, Maguire & Maguire 35132 ((male), (female) fl. NY).

Discussion:

Type. Cerro Yavi, alt 2200 m, Amazonas, Venezuela, 1-3 March 1947, Kathleen D. Phelps & C. B. Hitchcock 45 ((female) fl. only, NY).

Although this species is closely related to P. pycnophyllus, it definitely differs from it by much smaller leaflets arranged imbricately on the deciduous branchlets. The leaflets of P. pycnophyllus are distichous. The number of leaflets is much greater (70-75) in P. obfalcatus than in P. pycnophyllus where there are only 25-30 at the most. Their distributions also are disjunct.

Distribution:Venezuela South America|