In the state of Paraíba, Brazil, there is an abundance of rocky outcrops, which are typical elements of the semi-arid landscape. Those outcrops provide refuge to species with morphological adaptations to stressful climates and to rare communities of plants, including bryophytes. Nevertheless, there have been no studies of bryophytes in such habitats in the state. Therefore, this work aimed to inventory bryophytes on two outcrops in the municipality of Puxinanã, in Paraíba, addressing some of the ecological aspects of survival in xerophytic environments. Samples were collected once every two weeks from February 2010 to May 2011. The usual techniques of bryophyte sampling and herbarium preservation were employed. We recorded 21 bryophyte species (six liverworts and 15 mosses), some of which are rare for Brazil. We performed cluster analysis, using the unweighted pair group method with arithmetic mean, based on the Sørensen similarity index. We thus defined three clusters among the studied outcrops and similar areas recorded in the literature. The rocky outcrops proved to be singular in terms of bryophyte species composition, which, as in most xerophytic environments, included light-demanding and generalist species, featuring various morphological adaptations to resist water stress, primarily in terms of their leaf structure. Our results demonstrate the urgent need for additional studies in the state of Paraíba, including floristic, conservation, evolutionary and biogeographic studies.

Os novos registros são provenientes de um remanescente de Floresta Atlântica, a Reserva Ecológica do Gurjaú (08º10'00'' e 08º15'00''S; 35º02'30'' e 35º05'00''O), situada na região metropolitana do Recife, Pernambuco. São oito espécies de Lejeuneaceae: Archilejeunea auberiana (Mont.) A. Evans, Cololejeunea cardiocarpa (Mont.) A. Evans, Colura greig-smithii Jovet-Ast, Diplasiolejeunea cobrensis Gottsche ex Steph., Harpalejeunea stricta (Lindenb. & Gottsche) Steph., Lejeunea caespitosa Lindenb., L. monimiae (Steph.) Steph., L. quinqueumbonata Spruce,e uma de Bryaceae: Bryum pabstianum C. Muell. São apresentadas ilustrações, comentários taxonômicos e ecológicos, e distribuição geográfica das espécies no Brasil.

The new records were found in an Atlantic Forest remnant (tropical lowland rainforest), Reserva Ecológica do Gurjaú (08º10'00'' and 08º15'00''S; 35º02'30'' and 35º05'00''W), situated in the metropolitan area of Recife, Pernambuco State, Northeastern Brazil. The new occurrence corresponds to eight species of Lejeuneaceae: Archilejeunea auberiana (Mont.) A. Evans, Cololejeunea cardiocarpa (Mont.) A. Evans, Coluragreig-smithii Jovet-Ast, Diplasiolejeunea cobrensis Gottsche ex Steph., Harpalejeunea stricta (Lindenb. & Gottsche) Steph., Lejeunea caespitosa Lindenb., L. monimiae (Steph.) Steph., L. quinqueumbonata Spruce, and a Bryaceae: Bryum pabstianum C. Muell. Illustrations, floristic and ecological comments, and geographical distribution in Brazil are given for each species.

Foram registradas 19 espécies de Lejeuneaceae epíxilas em um remanescente de Floresta Tropical Atlântica no município de Timbaúba (7º 35'S, 35º 20'W), Estado de Pernambuco. Constituem novas referências para a região Nordeste - Aphanolejeunea sicaefolia (Gott. in Steph.) Evans e Cheilolejeunea trifaria (Reinw. et al.) Mizut. Há indicação de bibliografia referentes à descrição, ilustração e distribuição geográfica no Brasil, além de chave de identificação para os táxons encontrados.

A survey of epixylic bryoflora of a remaining Atlantic Forest, in the municipality of Timbaúba (7º 35'S, 35º20' W), State of Pernambuco, registered 19 species of the Lejeuneaceae family. New records for Northeast of Brazil are: Aphanolejeimea sicaefolia (Gott. in Steph.) Evans and Cheilolejeunea trifaria (Reinw. et al.) Mizut. There are an indication of the description, illustration, geographic distribution for Brazil and identification key for genera and species.