A new species of Bonnetia Mart. (Bonnetiaceae) from the Pantepui of South America by Rafael G. Barbosa-Silva, Benjamin M. Torke, Pedro L. Viana

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A synopsis of Christiana DC. (Malvaceae, Brownlowioideae), with a new species from the Brazilian Atlantic Forest by Thales Silva Coutinho, Rafael G. Barbosa-Silva, Laurence J. Dorr

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Expanding the Distribution of <i>Prosthechea jauana</i> (Orchidaceae) in the Pantepui and Highlighting the Urgent Need for Conservation Strategies in the Region in Face of Climate... by Tiago L. Vieira, Rafael G. Barbosa-Silva, André L. Acosta, Cássio van den Berg

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Preliminary placement and new records of an overlooked Amazonian tree, Christiana mennegae (Malvaceae) by Rafael G. Barbosa-Silva, Thales Silva Coutinho, Santelmo Vasconcelos, Delmo Fonseca da Silva, Guilherme Oliveira, Daniela C. Zappi

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