Wagner Ribeiro da Silva Junior

• Mestrando em Biodiversidade, Ambiente e Saúde - PPGBAS/UEMA
• Student at State University of Maranhão

Apresentamos, descrevemos e discutimos Alstroemeria maranhensis, uma nova espécie do domínio Cerrado no centro-sul do estado do Maranhão, Brasil. Também fornecemos um mapa de distribuição, fotografias e comentários taxonômicos.

Os levantamentos florísticos, realizados em vários campi universitários no Brasil, geralmente são focados em espécies arbóreas ou arbustivas, com pouca ou nenhuma citação para Orchidaceae. O objetivo desta pesquisa foi estudar as Orchidaceae ocorrentes na Universidade Federal do Maranhão (UFMA), campus Dom Delgado, São Luís, Maranhão, incluindo inf...

We present a key to identify and an annotated list of lycophytes and ferns of the Immediate Geographical Region of São Luís, Maranhão State, which has ecotonal characteristics of Amazonian Forest, Cerrado, and Coastal Vegetation. Specimens were collected monthly between April 2020 and September 2022 in the 13 municipalities of this region. A total...

This work is a floristic study of Selaginella in Maranhão. The species survey is based on collections from fieldwork conducted between April 2006 and February 2023 and specimens from Maranhão deposited at the CCAA, HBRA, MG, and SLUI herbaria. Ten species were identified: Selaginella conduplicata, S. convoluta, S. erythropus, S. flagellata, S. gyno...

Floristic similarity studies make it possible to compare species richness between different phytophysiognomies and to assess whether species are typical of a phytophysiognomies or if they are common to two or more phytophysiognomies. The Immediate Geographic Region of São Luís (IGR), in the central region of northern Maranhão, is characterized by t...

This study provides an inventory of the Orchidaceae in one of the most threatened areas of the Brazilian Amazon, situated in the eastern portion of the Belém Endemism Center. A total of 51 species, distributed in 24 genera, are recorded. Epiphytes represent 86% of the species, the remaining are terricolous (6%), hemiepiphytic (6%) or myco-heterotro...

We report the first record of Hippeastrum puniceum (Lam.) Kuntze in Maranhão and expand the known geographical distributions of Alophia drummondii (Graham) R. Foster and Rapatea paludosa Aubl. in that state. Alophia drummondii and Hippeastrum puniceum were collected in Cerrado fragments in the municipality of Caxias and Rapatea paludosa in a swamp-...

An updated checklist of the Orchidaceae from the state of Maranhão is provided. We confirmed 51 genera and 119 species, of which the most representative genera are Habenaria (17 spp.), Catasetum (14 spp.) and Epidendrum (10 spp.). Our checklist includes 30 species that are not listed in the Flora do Brasil for the state, many of which, however, hav...

O Maranhão é um estado brasileiro caracterizado pelo aspecto ecotonal entre os domínios da Amazônia e do Cerrado. O objetivo dessa pesquisa foi relatar a primeira ocorrência de Tillandsia paraensis no domínio do Cerrado Maranhense e ampliar sua distribuição geográfica no Maranhão. O trabalho foi baseado a partir de coletas de campo. A identificação...

Phenakospermum guyannense is the only native species of Strelitziaceae in South America and occurs in the Amazon domain in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. The species presents a negative sampling bias, probably due to the great effort necessary to collect it, as it presents long leaves and co...

Phenakospermum guyannense is the only native species of Strelitziaceae in South america and occurs in the amazon domain in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. The species presents a negative sampling bias, probably due to the great effort necessary to collect it, as it presents long leaves and co...

We report three species of Bromeliaceae (Encholirium spectabile Mart. ex Schult. & Schult.f., Pitcairnia burchellii Mez, and Tillandsia bulbosa Hook.) for the first time from Maranhão, northeastern Brazil, based on our fieldwork. Data on species' morphology, taxonomy, ecology, and geographic distribution are included. Our new data add to the knowle...

This work is an inventory of ferns and lycophytes of remnants in Amazônia Maranhense. The data provided are the results of collections made from 2010-2011 and 2016-2019 in various municipalities of Maranhão in the Amazonian part of the state. Sixty-four species of ferns and lycophytes, in 36 genera and 18 families, were recorded. Of these, 24 speci...

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,...

We report the first record of Voyria caerulea from the state of Maranhão, northeastern Brazil. A fertile specimen was collected in a gallery forest during the rainy season, within the boundaries of the municipality of São Raimundo das Mangabeiras. This find contributes to the knowledge on the micoheterotrophic flora of Maranhão and expands the geog...

We report the first record of Voyria caerulea from the state of Maranhão, northeastern Brazil. A fertile specimen was collected in a gallery forest during the rainy season, within the boundaries of the municipality of São Raimundo das Mangabeiras. This find contributes to the knowledge on the micoheterotrophic flora of Maranhão and expands the geog...

This study is the first record of the exotic fern species of Pteris tripartita Sw. (Pteridaceae) for the Maranhão state, northeastern Brazil. Here we present a description of the species, based on examined material and comments about its geographical distribution in the world and Brazilian states. Our data increases the knowledge of the number of c...

Vegetation is fundamental and indispensable for the cities, for the innumerable benefits that they offer, improving the quality of life of the urban centers’ populations. This study aims to present an inventory of the plant species present in squares and avenues of the municipality of Aldeias Altas - MA. Data were obtained through visits to the mun...