Reference collections

The group maintains a reference collection of slides of phytolith, starches, and other microparticles and a herbarium of samples from worldwide with richest coverage of old world taxa. Researchers are welcome to access this collection on a request basis. An inventory is available to download on this page. We also share residual weight percentages from reference collection phytolith extractions (dry ashed) showing calcite and phytolith concentrations.