The campus of the Universidade Federal de São Carlos, in the municipality of Sorocaba, is composed of a forest remnant characterized by vegetation of seasonal semidecidual tropical forest and cerrado. We recorded 96 species of bryophytes in the area: 56 mosses (Fissidentaceae is the richest, with 11 spp.) and 40 liverworts (Lejeuneaceae is the most representative, with 21 spp.). Eight species are endemic to Brazil and two were mentioned for the first time in the State of São Paulo (Fissidens allionii Broth. and Lejeunea subsessilis Spruce). The predominance of corticolous species and mat life form indicate a strong relationship with the microclimate conditions of the environment, as well as the availability of substrate. The simultaneous presence of species from the Atlantic Forest and the Cerrado indicates an transition zone bryoflora, at the same time that subcosmopolitan and ruderal species with wide distribution express the secondary character of the forest remnant.

O campus da Universidade Federal de São Carlos do município de Sorocaba é composto por um remanescente florestal caracterizado por vegetação de mata estacional semidecidual e cerrado. Foram encontradas 96 espécies de briófitas na área: 56 musgos (sendo Fissidentaceae a família mais rica, com 11 spp.) e 40 hepáticas (sendo Lejeuneaceae a mais representativa, com 21 spp.). Oito espécies são endêmicas do Brasil e duas foram citadas pela primeira vez no Estado de São Paulo (Fissidens allionii Broth. e Lejeunea subsessilis Spruce). O predomínio de espécies corticícolas e da forma de vida em tapete indicam a forte relação com as condições microclimáticas do ambiente, assim como a disponibilidade de substrato. A presença simultânea de espécies da Mata Atlântica e do Cerrado indica uma área de transição, ao mesmo tempo que espécies de ampla distribuição, subcosmopolitas e ruderais expressam o caráter secundário do remanescente florestal.

RESUMO O campus da Universidade Federal de São Carlos do município de Sorocaba é composto por um remanescente florestal caracterizado por vegetação de mata estacional semidecidual e cerrado. Foram encontradas 96 espécies de briófitas na área: 56 musgos (sendo Fissidentaceae a família mais rica, com 11 spp.) e 40 hepáticas (sendo Lejeuneaceae a mais representativa, com 21 spp.). Oito espécies são endêmicas do Brasil e duas foram citadas pela primeira vez no Estado de São Paulo (Fissidens allionii Broth. e Lejeunea subsessilis Spruce). O predomínio de espécies corticícolas e da forma de vida em tapete indicam a forte relação com as condições microclimáticas do ambiente, assim como a disponibilidade de substrato. A presença simultânea de espécies da Mata Atlântica e do Cerrado indica uma área de transição, ao mesmo tempo que espécies de ampla distribuição, subcosmopolitas e ruderais expressam o caráter secundário do remanescente florestal.

ABSTRACT The campus of the Universidade Federal de São Carlos, in the municipality of Sorocaba, is composed of a forest remnant characterized by vegetation of seasonal semidecidual tropical forest and cerrado. We recorded 96 species of bryophytes in the area: 56 mosses (Fissidentaceae is the richest, with 11 spp.) and 40 liverworts (Lejeuneaceae is the most representative, with 21 spp.). Eight species are endemic to Brazil and two were mentioned for the first time in the State of São Paulo (Fissidens allionii Broth. and Lejeunea subsessilis Spruce). The predominance of corticolous species and mat life form indicate a strong relationship with the microclimate conditions of the environment, as well as the availability of substrate. The simultaneous presence of species from the Atlantic Forest and the Cerrado indicates an transition zone bryoflora, at the same time that subcosmopolitan and ruderal species with wide distribution express the secondary character of the forest remnant.

ABSTRACT Rio Turvo State Park (RTSP) is a Conservation Unit located within the Atlantic Forest biome in the Vale do Ribeira region of the State of São Paulo, Brazil. Considering the lack of knowledge regarding its bryoflora, we performed a floristic inventory of RTSP (following the random-walk method), the results of which we report here including discussion of the geographical distribution (Brazil and worldwide), substrate colonization, life forms and reproduction of the species. We found a total of 414 species, which represents 30 % of all known bryophyte species in Brazil. Dioicous species were predominant over monoicous species, the most colonized substrate was tree trunk (40 % of all species) and the predominant life form was mat (47 %), indicating that the floristic composition is influenced by the environmental conditions of the area (high humidity, dense vegetation and shading). Although anthropogenic intervention is present in RTSP, it harbors huge biodiverse potential, since 22 % of the species are rare. Furthermore, 16 new occurrences were recorded for the State of São Paulo. The information provided by this study exalts the importance of this Conservation Unit in the preservation of bryophytes, as well as all the biodiversity of its included ecosystems.