New records of Leptogium species in Brazil with identification key to insular species from São Paulo State

Abstract

A survey of cyanolichen species occurring in Cananéia, Cardoso, Comprida and Ilhabela Islands of São Paulo State, Brazil, revealed the occurrence of sixteen species belonging to the genus Leptogium. The survey is based on literature review and on newly collected material. Two species (L. milligranum and L. sulcatum) are newly reported for Brazil and two others (L. atlanticum and L. denticulatum) for the studied islands, while L. azureum, L. cyanescens, L. isidiosellum and L. moluccanum were recollected by us. Descriptions for all insular species, along with an identification key are also presented.

A new species and new records of Leptogium (Ach.) Gray (Collemataceae, Peltigerales) from Rio Grande do Sul State with an identification key for the genus

“…Leptogium milligranum was recently mentioned to Brazil and São Paulo State (Kitaura et al 2017). Thallus foliose, up to 10 cm broad, light gray to fluorescent light, opaque, matt, gray to bluish under stereomicroscope.…”

Small Parmeliaceae (liquenized Ascomycota) of Ilhabela State Park and nearby areas, São Paulo state, Brazil

“…Aside from our work on the genus Leptogium (Kitaura et al 2017) there are no other inventories of lichens in the study area. Therefore, this study adds new and further information to the diversity of the local mycobiota.…”

“…Recently, a survey of foliose lichens in Cananéia, Cardoso, Comprida, and Ilhabela Islands (23°45'40"S, 45°24'44"W), São Paulo state, reported 16 species of Leptogium (Kitaura et al 2017), however, the lichen diversity at this region remains largely unexplored. In the present study, we aimed at identifying the species of small Parmeliaceae that occur at Ilhabela Island, state of São Paulo, Brazil.…”