Passiflora L. belongs to the family Passifloraceae sensu stricto , and comprises 700–750 species. There are approximately 161 known species of in Brazil, which 153 belong 89 endemic, 83 occur region Atlantic Domain; 40 Rio de Janeiro State (RJ). Using field samplings techniques scientific collection analyses, we present here new geographic records for deidamioides Harms, P. imbeana Sacco, junqu...

The freshwater microalgal genus Micrasterias C.Agardh ex Ralfs represents a monophyletic lineage of the Desmidiaceae (Škaloud et al. 2011). Besides the species traditionally included in this genus on the basis of the morphological data (see e.g. Prescott et al. 1977, Růžička 1981, Coesel & Meesters 2007), the Micrasterias lineage also includes several morphologically dissimilar taxa, such as Mi...

• Attempts to record membrane potentials from the human heart exposed during surgery have been reported by Woodbury et al. and Bromberger-Barnea et al. In these studies, rather large variation in the amplitude and time course of the potentials was observed, perhaps related to the circumstances of working with flexibly mounted micro-electrodes on an exposed, contracting heart. The present experi...