Paraíba State, Brazil: a hotspot of bryophytes

Abstract

A checklist for Paraíba bryophytes comprising 176 species (including 15 synonyms and the exclusion of three doubtful identifications), 86 genera, and 35 families is presented. This regional pool of species represents 19% of the Brazilian endemic species. We identified six species (not included in the Brazilian Red List) that require attention from a conservation viewpoint due to their rare distributions. The bryophyte assemblages are distributed according to precipitation and temperature gradients related to their distance from the coast, allied to stochastic processes. The present study identified deficits in collection efforts, especially in drier areas.

Diversity of thalloid liverworts in Brazilian Savanna of Parque Nacional da Chapada das Mesas, Maranhão, Brazil

“…However, C. weddellii differs by having the cavities in the thallus containing antheridia, pores with ring cells, appendage scales filiform and sporophyte covered by the involucre (Bischler-Causse et al 2005). Two species have been recorded from northeastern Brazil, C. weddellii and C. fimbriata (Nees) Whittem., of which the latter occurs mainly in the Caatinga (Yano and Porto 2006;Yano et al 2009;Germano et al 2016). Cronisia weddellii differs from C. fimbriata by having non-raised epidermal pores and scales that do not extend beyond the margins of the thallus.…”

“…Cronisia weddellii was the most abundant species that we collected and occurred at the majority of our sites. This species is frequently collected in northeastern Brazil (Yano 2009;Germano et al 2016;Oliveira et al 2018b;Silva et al 2018).…”

New occurrences of bryophytes species in Southern Brazil: bryodiversity still scarcely known

“…Floristic inventories have important roles in understanding plant biology and ecology (Brundu and Camarda 2013), allowing the classification of phytogeographic domains (Moro et al 2014), the assessment of conservation status, and facilitating forecasting temporal and spatial changes in plant communities. Floristic studies can be used to assess species richness along distance gradients from the sea (Sundberg et al 2006; Silva et al 2014), and the geographic distribution patterns of species can be used to infer the effects of niches on the compositions of plant assemblages (Germano et al 2016).…”

Bryophytes of Serra da Capivara National Park, Piauí, Brazil

“…Floristic inventories are of paramount importance because they enable the classification of biomes, the assessment of conservation status, and the prediction of temporal and spatial changes in plant communities (Moro et al 2014). They have also been used to infer the effects of niches on the composition of communities (Germano et al 2016).…”