Hidden biodiversity of Amazonian white-sand ecosystems: two distinctive new species of Utricularia (Lentibulariaceae) from Pará, Brazil

• Published in: PhytoKeys Vol. 169; no. 2; pp. 75 - 98
• Main Authors: Gonella, Paulo Minatel, Barbosa-Silva, Rafael Gomes, Fleischmann, Andreas S, Zappi, Daniela C, Baleeiro, Paulo Cesar, Andrino, Caroline Oliveira
• Format: Journal Article
• Language: English
• Published: Bulgaria Pensoft Publishers 04-12-2020
• Subjects: Amazon Basin; Analysis; Asteridae; Biodiversity; Brazil; Discovery and exploration; Identification and classification; Lentibulariaceae; Taxonomy; Amazon River region; wetlands; Amazon savannas; campinaranas; Utricularia ariramba; Utricularia jaramacaru; taxonomy; carnivorous plants; deforestation
• ISSN: 1314-2011; 1314-2003
• DOI: 10.3897/phytokeys.169.57626

As deforestation and fire move forward over pristine vegetation in the Amazon, many species remain undiscovered and may be threatened with extinction before being described. Here, we describe two new species of
(Lentibulariaceae) collected during recent fieldwork in an area of white-sand vegetation in the eastern Amazon Basin named Campos do Ariramba. Further herbarium revision revealed that both species were first collected over 60 years ago in the same area, remaining unnamed until now. The new species, named
and
, are placed in U. sect. Aranella and U. sect. Setiscapella, respectively. We provide full descriptions, illustrations, photographs, a distribution map, and taxonomic discussion for both species. Additionally, we provide a preliminary list of Lentibulariaceae from the Campos do Ariramba. Both new species are assessed as Vulnerable, however, yet known only from a few collections each, highlighting the urgency and importance of fieldwork and taxonomic revisions in the Amazon biogeographic region in order to provide essential data for the conservation of both known and still unknown biodiversity.