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Dendrochronological Picture Database

1,400 slides covering most topics relevant to dendrochronology show general and species-specific macroscopic and microscopic reactions to environment conditions.

Person in charge: Fritz Schweingruber

Glossary of Dendrochronology

This online glossary is adapted from the Multilingual Glossary of Dendrochronology (1995) and contains the definition and translation of 351 terms in 7 languages.

Person in charge: Michèle Kaennel Dobbertin


The Bibliography of Dendrochronology is a free searchable archive of printed documents relevant to tree-ring research worldwide.

Person in charge: Michèle Kaennel Dobbertin

Xylem Database

The Xylem database is an atlas of microscopic stem structures of herbs, dwarf

shrubs, shrubs and trees in transversal, tangential and radial


Person in charge: Fritz Schweingruber

Microscopic Wood Anatomy of Central European species

Identify your species with online high resolution cross- and length sections from trunks and twigs. All free of charge.

Person in charge: Fritz Schweingruber


ROXAS is a specialized image analysis tool for quantifying xylem anatomy in circular and linear samples of angiosperms and conifers.

Person in charge: Georg von Arx


The development of new microtomes is crucial for preparing bigger specimen and to enable time series analysis in wood anatomy. Until recently, several microtomes have been developed at the wood anatomy lab of the WSL.

Person in charge: Holger Gärtner