The guard herbal orderly dried botanical specimens can be represented part of plant diversity that exists in our environment. Like a library, the herbarium's collection is an important source of information where to obtain geographic data (villages), ecological (habitat and interactions), morphological (shape, size, color, texture) and ethnobotanical (local name, uses) of specimens that are safeguarded.
One aim of these collections is to keep the copies and information on well-preserved and accessible to whom he consulted. In some cases, have chosen herbal store information of his specimens in databases, which can be consulted electronically.
In many cases there is a mistaken view that the herbal are static entities in which they hold only plants dried in a predetermined order, but are actually herbal research units where there is an update and integration of botanical information steadily.
It is also important to consider not only the herbal directly support the implementation and formalization of floristic inventories or the study on the evolution of the groups, but also allow development works interdisciplinary, many of them of vital importance for the conservation and proper utilization of plant resources (Prance, 1977). Therefore, it is common for the herbarium is a site of obligatory reference for many research groups and where there is a privileged flow of information across disciplines.
