Selaginellaceae Willk. no estado de São Paulo, Brasil

Abstract

The present study deals with the floristic survey of Selaginellaceae Willk. in the state of São Paulo. Fourteen native species of three subgenera are recognised: Heterostachys Baker, Stachygynandrum (P. Beauv.) Baker, and Tetragonostachys Jermy. In the state of São Paulo the subgenera Heterostachys and Tetragonostachys are represented by one species each: Selaginella muscosa Spring and Selaginella sellowii Hieron., respectively. The subgenus Stachygynandrumis representedby12species: Selaginella contigua Baker, S. convoluta (Arn.)Spring, S. decomposita Spring, S. flexuosa Spring, S. macrostachya (Spring) Spring, S. marginata (Humb. & Bonpl. ex Willd.) Spring, S. mendoncae Hieron., S. microphylla (Kunth) Spring, S. suavis (Spring) Spring, S. sulcata (Desv. ex Poir.) Spring, S. tenuissima Fée, and S. valida Alston. Selaginellamendoncae and Selaginella sellowii are beingmentioned for the first time for the state of São Paulo. Four introduced species are also reported for the studied area: Selaginella kraussiana (Kunze)A.Braun, S. pallescens (C. Presl) Spring, S. plana (Desv. ex Poir.) Hieron., and S. vogelii Spring. Key and descriptions for subgenera and species, as well as, illustrations, geographical distribution, and comments are presented.