Check List 15(6): 1153-1160, doi: 10.15560/15.6.1153
New occurrences of small aquatic duckweeds (Araceae, Lemnoideae) in Maranhão state, northeastern Brazil
expand article infoAlessandro Wagner Coelho Ferreira‡, Miguel Sena de Oliveira§, Wagner Ribeiro da Silva Junior|, Ivanilza Moreira de Andrade, Marcus Alberto Nadruz Coelho#, Hermeson Cassiano de Oliveira¤, Simon Joseph Mayo«
‡ Universidade Federal do Maranhão, São Luís, Brazil§ Universidade Estadual do Maranhão, Caxias, Brazil| Universidade Federal do Maranhão, São Luis, Brazil¶ Universidade Federal do Piauí, Parnaíba, Brazil# Jardim Botanico do Rio de Janeiro, Rio de Janeiro, Brazil¤ Universidade Estadual do Piauí, Campo Maior, Piauí, Brazil« Royal Botanic Gardens,Kew, Kew, Richmond, United Kingdom

Corresponding author: Hermeson Cassiano de Oliveira ( hermeson123@gmail.com )

Academic editor: Juliana de Paula-Souza
© Alessandro Wagner Coelho Ferreira, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, Ivanilza Moreira de Andrade, Marcus Alberto Nadruz Coelho, Hermeson Cassiano de Oliveira, Simon Joseph Mayo.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Ferreira AWC, Oliveira MS, Junior WRS, Andrade IM, Coelho MAN, Oliveira HC, Mayo SJ (2019) New occurrences of small aquatic duckweeds (Araceae, Lemnoideae) in Maranhão state, northeastern Brazil. Check List 15(6): 1153-1160. https://doi.org/10.15560/15.6.1153
Open Access
Abstract

This study presents the first records for Maranhão state, northeastern Brazil, of the duckweeds Lemna valdiviana Phil., Wolffia brasiliensis Wedd. and Wolffiella lingulata (Hegelm.) Hegelm. The species were collected in a survey of water bodies in the muncipalities of Caxias, Igarapé do Meio and São João do Sóter. Descriptions, illustrations, maps, georeferenced specimen citations and an identification key are provided. These new records contribute to the expansion of the knowledge of the Maranhão flora and the geographic distribution of the Lemnoideae of the Northeast region of Brazil.

Keywords
Amazonia Maranhense, aquatic plants, Araceae, Cerrado Maranhense