In other words, some plants aren't found in the pollen and phytolith profiles.    From Wordnik.com.  [Of Cereal and Civilization] Reference

We are also collecting pollen and phytolith samples, as well as water screening all soil.    From Wordnik.com.  [Interactive Dig Mt. Vernon - Ask an Archaeologist] Reference

Are you also conducting pollen and phytolith studies in conjunction with your flotation work?.    From Wordnik.com.  [Interactive Dig Mt. Vernon - Ask an Archaeologist] Reference

The amount of silica that ends up in the phytolith depends on the nature of the soil it is grown in and how much water it is exposed to.    From Wordnik.com.  [The Goddess and the Bull] Reference

When wheat is grown in irrigated fields with clay-rich alluvial soils, the longer exposure to silica from standing water leads to extensive phytolith formation and large cell clusters.    From Wordnik.com.  [The Goddess and the Bull] Reference

For example, in 2002 I collected soil samples from a cave in South China for pollen and phytolith analysis, then I invited a biologist to study the current vegetation in the vicinity of this cave, and I compared the results.    From Wordnik.com.  [Of Cereal and Civilization] Reference

Jen collects a pollen-phytolith sample.    From Wordnik.com.  [Interactive Dig Mt. Vernon - The Archaeologists' Toolbox] Reference