3. * Mimosa alleniana Morong

J.R.I. Wood et al. 18512 (LPB, K) is the first record of this species, and of subseries Pedunculosae (sect. Mimosa, ser. Mimosa) for Bolivia. Given the distribution of the ten known species of subseries Pedunculosae in campo habitats on hills of the Paraná and Paraguay basins, and of M. alleniana from campo and cerrado in Paraguay and Mato Grosso do Sul on the east side of the Rio Paraguay, this species and subseries could be expected to occur in Bolivia. However it is only known in Bolivia from a restricted area of very vulnerable cerrado near Santiago de Chiquitos. It was categorised as Endangered (EN) by Mamani et al. (2010) but this status should be reviewed and perhaps changed to Critically Endangered (CR) as much of its habitat had been cleared and sown with Brachiaria brizantha when revisited in 2013.