Abstract
General information is given on the Herbarium Webb (FI-W), how it is ordered and mantained, the possibilities to trace particular specimens and the difficulties met in recognising the collections. Then the different herbaria Webb was able to get are described and a list is given of taxonomists of the ninenteenth century, who worked in the herbarium and described new species in it. Then two lists follow of the collectors, the author was able to trace and recognise in the herbarium, the first one ordered alphabetically and the second ordered geographically.