"Pericopsis" is a free and collaborative database for the localization and identification of trees. Pericopsis can be consulted and upgraded by everyone using Google map.
The proposed principle is a "Wiki" which means "making it easy to correct mistakes rather than making it difficult to make them". When a contributor identifies a tree he can put the tree name on a map and self evaluate his contribution as: "unsure" or "sure". He can also help another contributor if he is unsure for its tree identification.
“Pericopsis” aims to develop both personal and global knowledge and awareness about the fascinating beauty and diversity of trees. Information sharing will increase common consciousness about the conservation and benefits of trees in our daily environment. The view is that actions for biodiversity conservation need the support of citizen knowledge. Pericopsis is a way to promote this knowledge and to make it visible. Interoperability with other databases is planned for the future.