This database contains botanical records either relating to material present in one of the Naturalis collections, or to material that has been or is being used in research projects. The records usually relate to herbarium specimens, but it also contains data on silica-gel samples, wood samples, spirit collections, carpological collections, etc.; rarely to observations only. The Naturalis collections have their strong points in The Netherlands and surrounding countries, Southeast Asia and New Guinea, West- and Central-Africa, Ethiopia and the Guyanas.

Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Réserve Naturelle Trésor is composed of one 1ha-plot. A complete inventory has been made in 2003 : 443 trees with dbh>=10cm have been registrated and 442 species have been identified. 99,8% of the registrated trees have been identified to the species level. We only have the point coordinates and not the precise demarcation of the sample plot. In order to calculate the bounding box for the plots, we have expanded the point location 100 meters in each direction.