About "Epiphytic Lichens of G. Lettau at the Botanical Museum Berlin-Dahlem"

The Collection

The lichen collection of G. Lettau (1878-1951) at the Botanical Museum Berlin-Dahlem (B) comprises more than 17,000 herbarium specimens. The around 2,000 taxa represented are mainly from East Prussia (today Poland and Russia), Thuringia and the Black Forest mountains (Germany) and Switzerland, and were collected between 1898 and ca. 1940. A major part consists of epiphytic lichens, growing on trees and shrubs, which are particularly sensitive to environmental disturbance. The label information of the epiphytic lichens from Thuringia and the southern Black Forest has been databased as baseline information for the study of environmental changes.

Data Project and Service

The data project "Epiphytic Lichens of G. Lettau at B" was established by Harrie J. M. Sipman, Berlin. Support was provided by the Bundesministerium für Bildung und Forschung (BMBF) within the frame of the umbrella project "Establishing the German GBIF Node for Mycology". Data entry was mainly done by Brigitte Hennig and scientific survey provided by Harrie J. M. Sipman. For online access "Epiphytic Lichens of G. Lettau at B" uses Diversity Workbench components developed within the framework of the GLOPP project and the GBIF-D mycology project. The ColdFusion web interface was programmed by Jan Ingenhaag, Botanische Staatssammlung München. The Generic Point Mapper and Google Maps are used as web services to create dynamic maps.

Currently the data project "Epiphytic Lichens of G. Lettau at B" is maintained and expanded by staff members of the Botanical Garden and Museum Berlin-Dahlem as part of the German GBIF Node for Mycology. Notices of errors of any kind are much appreciated by the editorial staff there. General IT support is provided by the Botanische Staatssammlung München.

The Database "Epiphytic Lichens of G. Lettau at B" and – if not stated otherwise – its supporting files have been copyrighted © 2005 by the Botanical Garden and Museum Berlin-Dahlem.