PeerJ Author 100 Points Contributions by role Author 100 Contributions by subject area Biodiversity Plant Science Taxonomy Adriel Michel Sierra PeerJ Author Summary Biodiversity Ecology Plant Science Taxonomy PeerJ Contributions Articles 1 May 11, 2018 From the Guiana Highlands to the Brazilian Atlantic Rain Forest: four new species of Selaginella (Selaginellaceae – Lycopodiophyta: S. agioneuma, S. magnafornensis, S. ventricosa, and S. zartmanii) Iván A. Valdespino, Christian A. López, Adriel M. Sierra, Jorge Ceballos https://doi.org/10.7717/peerj.4708 PubMed 29770272