This study examined the roles of arsenic translocation and reduction, and P distribution in arsenic detoxification of Pteris vittata L. (Chinese Brake fern), an arsenic hyperaccumulator and Pteris ensiformis L. (Slender Brake fern), a non-arsenic hyperaccumulator. After growing in 20% Hoagland solution containing 0, 133 or 267 microM of sodium arsenate for 1, 5 or 10 d, the plants were separate...

The present paper highlights a taxonomic account of genus Pteris L. (Pteridaceae E.D.M. Kirchn.) with newly reported species amoena Blume, which was collected from the Pange range Tale Wildlife Sanctuary and Hapoli Primary Forest, Hapoli, Lower Subansiri District Arunachal Pradesh. communication is based on plant exploration in-depth surveys done by first two authors through scrutiny herbaria l...

The most promising account of parental obligation currently on offer is a causal account. According to such an account, parents incur obligation to their offspring by causing them to exist. Causal accounts are explanatorily strong—the moral force of causing someone to exist seems straightforward. They seem to more or less capture our everyday intuitions about who is a parent with parental oblig...