TY  - JOUR 
T1  - Ferns and lycophytes in Chapada das Mesas National Park and surroundings, Maranhão State, Brazil
JO  - Biota Neotropica
A1  - Fernandes, Rozijane Santos
A1  - Silva, Laryssa Reis
A1  - Oliveira, Sirlane Santos
A1  - Ottoni, Felipe Polivanov
A1  - Pietrobom, Marcio Roberto
SN  - 1676-0603
UL  - 10.1590/1676-0611-BN-2021-1273
VL  - 22 
Y1  - 2022
PB  - Brazil 
ER  -