An account of a new and endangered tiny species of Phyllanthus (Phyllanthaceae) from Serra da Gandarela, Minas Gerais, Brazil

Field observations and specimens from herbaria revealed the existence of a new species of the genus Phyllanthus, restricted to the municipality of Santa Bárbara, André do Mato Dentro, in the state of Minas Gerais, Brazil. Characteristics such as the subsessile petiole and the size and morphology of the leaves, in addition to the pistallate flowers with 6 sepals, stipules, styles, and stigmas were important to recognize Phyllanthus gandarelensis as a new taxon. Description, illustrations, distribution and habitat, phenology, preliminary conservation status as Critically Endangered, and comments on its morphology, as well as a comparative table with its congener species are presented.