sentence1: The species was first formally described by the botanist Stephan Endlicher in 1846 as part of Johann Georg Christian Lehmann 's work `` Irideae . Plantae Preissianae '' .
sentence2: The species was first formally described in 1846 by the botanist Johann Georg Christian Lehmann in the context of Stephan Endlicher 's work `` Irideae Plantae Preissianae '' .