The author of this article examines the contribution of the press in defining, practising and developing a new poetic form of prose during the 1840s-60s in France. She seeks to demonstrate that this renewed poetic can be analyzed only if there is a clearly recognized distinction between the brief and the longer newspaper forms (columns, stories and certain factual exposes), given their differing roles in the history of the poem in prose. While the short form signaled the poetry of the avant-garde, traces of which were already evident at the end of the 19(th) century, i.e., after the 1840s-60s, the poem in prose developed largely within the framework of the longer, more legitimate forms used by major 19(th) century writers, since this framework was more conducive to the new modern compositions frequently characterized by forms of oxymoric dualism.