ABSTRACT (The bryophytes of the Reserva Particular do Patrimônio Natural Parque das Neblinas, State of São Paulo, Brazil: IV Bryophyte Workshop of Brazil). In November 2022, the IV Workshop of Brazilian Bryophytes took place, celebrating 200 years of bryophyte studies in Brazil. The date commemorates Raddi’s publication in 1822 and the birth month of Aloysio Sehnem, the first Brazilian to study bryophytes. Seventeen bryophyte enthusiasts participated in practical activities using samples from the SP herbarium and collecting in the Parque das Neblinas, located between Mogi das Cruzes and Bertioga, São Paulo State, Brazil. The park covers an area with Ombrophilous Forest and Eucalyptus plantations. 381 species of bryophytes were found, with Lejeuneaceae being the most diverse family, with 83 species, and Pilotrichaceae with 20 species. Twenty-four species are new records for the State of São Paulo. 38% are exclusive to the Atlantic Forest, and 12% are endemic to Brazil. These results highlight the importance of Parque das Neblinas for the conservation and future studies of bryophytes. Brazil . Brazil) 2022 place Raddis Raddi s 182 Sehnem Bertioga plantations 38 found family 8 2 Twentyfour Twenty four 12 202 18 3 1

RESUMO (As briófitas da Reserva Particular do Patrimônio Natural Parque das Neblinas, Estado de São Paulo, Brasil: IV Workshop de Briófitas do Brasil). Em novembro de 2022, ocorreu o IV Workshop de Briófitas Brasileiras, celebrando 200 anos de estudos de briófitas no Brasil. A data comemora a publicação de Raddi em 1822 e o mês de nascimento de Aloysio Sehnem, o primeiro brasileiro a estudar briófitas. Dezessete entusiastas de briófitas participaram das atividades práticas utilizando amostras do herbário SP e coleta no Parque das Neblinas, situado entre Mogi das Cruzes e Bertioga - SP. O parque abrange uma área com Floresta Ombrófila e plantações de Eucalyptus. Foram encontradas 381 espécies de briófitas, sendo Lejeuneaceae a família mais diversa, com 83 espécies, e Pilotrichaceae com 20 espécies. Vinte e quatro espécies são novos registros para o Estado de São Paulo. 38% são exclusivas da Mata Atlântica, 12% são endêmicas do Brasil. Esses resultados destacam a importância do Parque das Neblinas para a conservação e futuros estudos de briófitas. As Paulo Brasil . Brasil) 2022 Brasileiras 182 Sehnem Eucalyptus 38 diversa 8 2 Atlântica 12 202 18 3 1

Abstract The Itatiaia National Park protects important Atlantic Forest remnants as well as a large number of rare bryophyte species. We reassessed the conservation status of 45 species of endemic and/or threatened mosses occurring in high-altitude fields in the Park. The conservation analysis followed the International Union for Conservation of Nature guidelines. The GeoCAT software was used to calculate the Extent of Occurrence (EOO) and Area of Occupancy (AOO). The threat vectors were characterized based on field observations and data from the literature. After the reassessment, 31 species were considered threatened, with 16 being considered vulnerable (VU), seven critically endangered (CR), and eight endangered (EN). Two species were considered “near threatened” (NT) and three were considered “data deficient” (DD), and seven were considered “least concern” (LC). The main threats in that region are wildfires and excessive tourism - factors that lower habitat quality and reduce their EOO and AOO. Recommendations to minimize imminent losses of the local bryoflora include incentives for research and microhabitat protection. Our results are designed to aid in the elaboration of conservation strategies for mosses in the Serra da Mantiqueira mountains. 4 andor or highaltitude high altitude guidelines (EOO AOO . (AOO) literature reassessment 3 1 VU, VU , (VU) CR, CR (CR) EN. EN (EN) near NT (NT deficient DD, DD (DD) least concern LC. LC (LC) protection mountains (AOO (VU (CR (EN (DD (LC

ABSTRACT Andreaea subulata is a moss species that occurs throughout the Southern Hemisphere. In Brazil, it is restricted to high-altitude fields in the state of Rio de Janeiro. The last recorded collection of this species in the country was made 95 years ago in the Itatiaia National Park (INP). It was never seen or collected again since then and it was, therefore, considered ‘probably extinct’ in Brazil. Here we report the rediscovery of this species in the INP and provide information on its ecology and conservation status in Brazil (Critically Endangered) as well as conservation recommendations. The newly found population is very small and grows on granitic rocks in humid areas. The principal threat to the species in Brazil is habitat loss.