Bryophytes of Sete Cidades National Park, Piauí, Brazil Author Gomes do Nascimento, Géssica Maria Author Conceição, Gonçalo Mendes da Author Fernandes Peralta, Denilson Author Oliveira, Hermeson Cassiano de text Check List 2020 2020-08-06 16 4 969 988 http://dx.doi.org/10.15560/16.4.969 journal article 10.15560/16.4.969 1809-127X Riccia vitalii Jovet-Ast Examined material. BRAZIL • 1 specimen ; Piauí , Pira- curuca, Sete Cidades National Park , Cachoeira Riachão ; 04°27′40″S , 041°56′30″W ; 19 Mar. 2017 ; G . M . G Nasci- mento leg. (HUESPI 578) . Identification. Rounded hyaline cells, forming the epidermis, regularly arranged, of equal size throughout surface; pores not evident. Briocenological group: saxicolous and terricolous. Brazilian range. AL, AM, BA, CE, ES, GO, MA, MS, PB, PE, PI, RN, RS, SE, TO (broadly distributed).